Broadscope `section 230523 valves



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D&C JRC:dja BROADSCOPE

`SECTION 230523
VALVES

WHEN UPDATING THIS MASTER SECTION ALSO REMEMBER TO VERIFY IF SIMILAR MODIFICATIONS NEED TO BE MADE TO SECTIONS 220523 (SHORT VERSION) OR 230523 (SHORT VERSION).

PART 1 GENERAL
EDIT ARTICLE BELOW AS REQUIRED.

1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Thermal Expansion Valves: Section 236000.
B. Temperature Control Valves: Sections 230923, 230933, or 230943.
1.02 ABBREVIATIONS
A. IBBM: Iron body, bronze mounted.
B. OS&Y: Outside screw and yoke.
C. WOG: Water, oil, gas.
D. WSP: Working steam pressure.
1.03 SUBMITTALS
A. Product Data: Catalog sheets, specifications and installation instructions for each valve type.
B. Valve Schedule: List type of valve, manufacturer’s model number, and size for each service application.
USE ARTICLE BELOW FOR PROJECTS WITH WORK IN POWER PLANTS.

1.04 QUALITY ASSURANCE
A. Source Quality Control:

1. The Director, may at his discretion, require manufacturers to submit for approval mill certificates, laboratory test and manufacturing reports relating to chemical and mechanical properties of valve components.


USE ARTICLE BELOW WITH PLUG VALVES AND SELF CONTAINED THERMOSTATIC RADIATOR CONTROL VALVES. EDIT AS REQUIRED.

1.05 MAINTENANCE


  1. Special Tools:

1. One wrench for each type and size wrench operated plug valve.

2. Two insert changing tools, and one spare insert for each self contained thermostatic radiator control valve.



REFER TO VALVE APPLICATION SCHEDULE AT END OF SECTION TO DETERMINE VALVE TYPES REQUIRED FOR PARTICULAR APPLICATIONS, EDIT PART 2 AS REQUIRED.

PART 2 PRODUCTS
2.01 VALVES - GENERAL
A. Valve Standardization: Valves from one or more manufacturers may be used, however valves supplied for each specific valve type shall be the product of one manufacturer.
B. Valves shall be first quality, free from all imperfections and defects, with body markings indicating manufacturer and rating.
C. Valve parts of same manufacturer, size and type shall be interchangeable.
D. Manually operated gate, globe and angle valves shall be of rising stem type, unless otherwise specified.
E. Manually operated valves shall open in a counterclockwise direction by means of round ventilated type handwheels.

1. Exception: Cross handle type handwheels are acceptable for valves up to 3 inches in size.


F. In open position, wedge and stem of gate valves shall clear the waterway completely.
G. Valves which use packing shall be capable of being packed when wide open and under full working pressure.
H. Size valves the same size as the piping in which they are installed, unless otherwise specified.
USE PARAGRAPH BELOW ONLY WHEN INSTRUCTED BY DESIGNER. VALVED BY-PASSES ARE ONLY REQUIRED IN HIGH PRESSURE STEAM LINES AND HIGH TEMPERATURE WATER LINES. FILL IN BLANKS. DELETE UNDERLINES BEFORE ENTERING INFORMATION.

I. Provide manually operated gate and globe valves 8 inches in size and larger with valved by-pass incorporated in body of main valve when installed in piping systems operating at a pressure in excess of ________ psig WSP or ________ psig water pressure. Service rating of by-pass valve shall be equal to or greater than main valve it is by-passing.

1. Exception: Stop-check valves.
2.02 MATERIALS
A. Body:

1. Cast Iron: ASTM A 126 66, Class B, higher strength cast iron.

2. Bronze: For use up to 150 psig WSP, ASTM B 62 and over 150 psig to 300 psig WSP, ASTM B 61.

3. Cast Steel: ASTM A 216 Grade WCB.

4. Forged Steel: ASTM A 105 Grade 2.
B. Stem:

1. Cast Manganese Bronze: ASTM B 584.

2. Cast Silicon Brass: ASTM B 584.

3. Rolled Silicon Brass: ASTM B 98 Alloy D.

4. Rolled Aluminum Bronze: ASTM B 150 Alloy 1.

5. Rolled Manganese Bronze: ASTM B 138 Alloy A (half hard).

6. Naval Brass: ASTM B 21 Alloy A or Alloy C (hard).

7. Carbon Steel: As specified for particular type of valve.



8. Stainless Steel: As specified for particular type of valve.
C. Trim: As specified for particular type of valve.
2.03 GATE VALVES
A. Type A: 125 psig WSP, 200 psig WOG, bronze body, union bonnet, solid wedge disc, and threaded ends. Acceptable Valves: Crane428UB, Hammond IB617, Jenkins 47CU, Milwaukee 1152, Nibco T134, and Stockham B105.
B. Type C: 125 psig WSP, 200 psig WOG up to 12 inch size, and 150 psig WOG for 14 inch and 16 inch sizes; IBBM OS&Y, bolted bonnet, solid wedge disc, and threaded or flanged ends depending on size. Acceptable Valves: Crane 464-1/2 & 465-1/2, Hammond IR1140, Milwaukee F2885, Nibco T6170 & F6170, and Stockham G620 & G623
C. Type D: 125 psig WSP, 200 psig WOG, bronze body, threaded bonnet, solid wedge disc, and solder ends. Acceptable Valves: Crane 1330, Hammond IB635, Jenkins 991AJ, Milwaukee 149, Nibco S111, and Stockham B108.
D. Type E: 200 psig WSP, 400 psig WOG, bronze body, union or bolted bonnet, solid wedge disc, with monel, cupro-nickel alloy or stainless steel seat rings, and threaded ends. Acceptable Valves: Crane 424, Hammond IB650, Jenkins 2270UJ, Milwaukee 1174, Nibco T174SS, and Stockham B132.
E. Type F: 250 psig WSP, 500 psig WOG up to 12 inch size, and 200 psig WSP, 300 psig WOG for 14 inch thru 20 inch sizes, IBBM 0S&Y, bolted bonnet, solid wedge disc, and threaded or flanged ends depending on size. Acceptable Valves: Crane 7-1/2, Hammond IR330, Jenkins 204C, Milwaukee F2894, Nibco F6670, and Stockham F667.
F. Type G: 300 psig WSP, 600 psig WOG, bronze body, union or bolted bonnet, solid wedge disc, cupro-nickel alloy or stainless steel seat rings, and threaded ends. Acceptable Valves: Crane 634E, Hammond IB658, Jenkins 2280UJ, Milwaukee 1184, Nibco T174SS, and Stockham B145.
G. Type H: 150 psig WSP, 300 psig WOG, bronze body, union bonnet, solid wedge disc, and threaded ends. Acceptable Valves: Crane 431UB, Hammond IB629, Jenkins 47CU, Milwaukee 1151, Nibco T134, and Stockham B120.
H. Type I: 150 psig WSP, 300 psig WOG, bronze body, union bonnet, solid wedge disc, and solder ends. Acceptable Valves: Hammond IB648, Milwaukee 1169, and Nibco S134.
2.04 GLOBE AND ANGLE VALVES
A. Type J: 125 WSP, 200 psig WOG, bronze body, threaded bonnet, and threaded ends. Acceptable Valves: Crane 1, Hammond IB440 & IB463, Jenkins 101J, Milwaukee 502, Nibco T211 & T311, and Stockham B16.
B. Type K: 125 psig WSP, 200 psig WOG, IBBM OS&Y, bolted bonnet, and threaded or flanged ends depending on size. Acceptable Valves: Crane 351 & 353, Hammond IR116, Jenkins 613C & 615C, Milwaukee F2981, Nibco F718B & F818B, and Stockham G512, & G515.
C. Type L: 200 psig WSP, 400 psig WOG, bronze body, union or bolted bonnet, with 500 Brinell hardness stainless steel renewable plug, 500 Brinell hardness stainless steel replaceable seat ring, and threaded or flanged ends depending on size. Acceptable Valves: Crane 212P, Hammond IB434, Jenkins 2050J, Milwaukee 592 & 593, Nibco T276AP & T376AP, and Stockham B62.
D. Type M: 250 psig WSP, 500 psig WOG, IBBM OS&Y, bolted bonnet, renewable seat and disc, and threaded or flanged ends depending on size. Acceptable Valves: Crane 21E, Hammond IR313, Jenkins 923C, Milwaukee F2983, Nibco F768B & F869B, and Stockham F532.
E. Type N: 300 psig WSP, 600 psig WOG, bronze body, union bonnet, with 500 Brinell hardness stainless steel renewable plug, 500 Brinell hardness stainless steel replaceable seat ring, and threaded or flanged ends depending on size. Acceptable Valves: Crane 382P & 384P, Hammond IB444, Jenkins 556P & 558P, Milwaukee 593A, Nibco T276AP & T376AP, and Stockham B74 & B274.
F. Type O: 125 psig, 200 psig WOG, bronze body, threaded bonnet, and solder ends. Acceptable Valves: Crane 1310, Hammond IB423, Jenkins 1200C, Milwaukee 1502, Nibco S211, and Stockham B17.
G. Type P: 150 psig WSP, 300 psig WOG, bronze body, union bonnet, threaded ends, with 500 Brinell hardness stainless steel renewable plug and replaceable seat ring. Acceptable Valves: Crane 14-1/2, Hammond 444, Jenkins 2032J, Milwaukee 591A, and Stockham B29.
2.05 CHECK VALVES
A. Type S: 125 psig WSP, 200 psig WOG, bronze body, brass or bronze trim, horizontal swing, renewable and regrindable disc, and threaded ends. Face discs for cold water service with teflon. Acceptable Valves: Crane 37, Hammond IB940, Jenkins 4092, Milwaukee 509, Nibco T413Y, and Stockham B319Y.
B. Type T: 150 psig WSP, 300 psig WOG, bronze body, brass or bronze trim, horizontal swing, renewable and regrindable disc, and threaded ends. Face discs for cold water service with Buna-N or teflon. Acceptable Valves: Crane 137, Hammond IB944, Jenkins 4092 & 4037J, Nibco T4331, and Stockham B321.
C. Type U: 125 psig WSP, 200 psig WOG, bronze body, brass or bronze trim, horizontal swing, renewable and regrindable disc, and solder ends. Face discs for cold water service with teflon. Acceptable Valves: Crane 1340, Hammond IB912, Jenkins 4093, Milwaukee 1509, Nibco S413Y, and Stockham 309Y.
D. Type V: 125 psig WSP, 200 psig WOG, IBBM, horizontal swing, bolted bonnet, regrindable and renewable seat ring and disc, and threaded or flanged ends depending on size. Discs on valves 4 inch size and larger may be cast iron with bronze face. Acceptable Valves: Crane 372, & 373, Hammond IR1124, Jenkins 623CJ & 624CJ, Milwaukee F2974, Nibco F918, and Stockham G927 & G931.
E. Type W:

1. Globe Style Silent Check Valve: IBBM or semi-steel with bronze mounting, renewable seat and disc, 18-8 stainless steel spring, and flanged ends.

a. Acceptable Valves (125 psig flange pressure rating): Apco Series 600, Combination Pump & Valve 20D, Hammond IR9354, Milwaukee 1800, Nibco F910, and Williams Hager 636.

USE SUBPARAGRAPH ABOVE OR BELOW, CHECK WITH DESIGNER FOR REQUIRED FLANGE PRESSURE RATING.

b. Acceptable Valves (250 psig flange pressure rating): Apco Series 600, Combination Pump & Valve 21D, Milwaukee 1800, Nibco F960, and Williams Hager 636.

2. Wafer Style Silent Check Valve: IBBM or semi-steel with bronze mounting, renewable seat and disc, 18-8 stainless steel spring, and flanged ends.

a. Acceptable Valves (125 psig flange pressure rating): Apco Series 300, Combination Pump and Valve 10D, Hammond IR9253, Milwaukee 1400, Nibco W910, and Williams Hager 329 & 375.



USE SUBPARAGRAPH ABOVE OR BELOW, CHECK WITH DESIGNER FOR REQUIRED FLANGE PRESSURE RATING.

b. Acceptable Valves (250 psig flange pressure rating): Apco Series 300, Combination Pump and Valve 11D, Milwaukee 1400, Nibco W960, and Williams Hager 329 & 375.


F. Type X: 300 WSP, 600 psig WOG, bronze body, brass or bronze trim, horizontal swing, renewable and regrindable disc, and threaded ends. Face disc for cold water service with Buna-N or teflon. Acceptable Valves: Crane 76E, Hammond IB949, Jenkins 4962J, Milwaukee 507, Nibco T4731, and Stockham B375.
G. Type Y: 250 psig WSP, 500 psig WOG, IBBM, horizontal swing, bolted bonnet, regrindable and renewable seat ring and disc, and threaded or flanged ends depending on size. Discs on valves 4 inch size and larger may be cast iron with bronze face. Acceptable Valves: Crane 39E, Hammond IR322, Jenkins 339C, Milwaukee F2970, Nibco F968B, and Stockham F947.
H. Type Z: 125 psig flange pressure rating, cast iron body, wafer style, split clapper plate type with integral body seat ring, plain or flat face end connections, resilient Buna-N seal vulcanized to body seat ring; aluminum, bronze or stainless steel clapper plates; Type 316 stainless steel clapper springs and hinge pins; and nickel plated steel or stainless steel stop pieces. Acceptable Valves: Apco Series 9000, Nibco W920W, Stockham WG970, and Marlin Duo-Check II.
2.06 PLUG VALVES
A. Type AA: 200 psig WOG, lubricated type with standard port opening, cast iron or semi-steel body, sealed lubrication system with lubricant fitting and dial indicator, cylindrical plug or teflon tapered plug, lubricant grooves in body or plug, threaded or flanged ends depending on size, and capable of lubrication with valve under pressure and plug in any position.

1. Acceptable Valves:

a. 1/2 inch to 3 inch size: Homestead 611 & 612, Resun R1430 & R1431, and Rockwell 142 & 143.

b. 4 inch size: Homestead 611 & 612, , Resun R1430 & R1431, and Rockwell 142 & 143.

c. 5 inch size: Homestead 611 & 612, Resun R1431, and Rockwell 143.

d. 6 inch size: Homestead 611 & 612, , Resun R1431, and Rockwell 143.

e. 8, 10 & 12 inch sizes: Homestead 612G, Resun R1431WGA, and Rockwell 149.

2. Operators:

a. 6 inch size and Less: Wrench operator.

b. 8 inch size and Up: Worm gear operator.


B. Type AB: 100 psig WOG, gas cock type with cast iron or bronze body, bronze plug, square head, wrench operator, and threaded ends. Acceptable Manufacturers: Crane, Eclipse Combustion, and McDonald.
2.07 BUTTERFLY VALVES
A. Type BF: Iron body, flangeless wafer or lugged type, (lug for each bolt hole, drilled and tapped for cap screws), with replaceable reinforced resilient EPT (EPDM) seats, bronze or nickel plated ductile iron discs, phosphate coated steel or stainless steel stems, and raised necks able to accommodate 2 inches of insulation. Acceptable Manufacturers: Crane, Demco, De Zurik, Hammond, Keystone, Milwaukee, Nibco, Stockham, and Watts.

1. Pressure Ratings:

a. 12 inch size and Less: 200 psig WOG at 275 degrees F.

USE SUBPARAGRAPH ABOVE AND/OR BELOW AS REQUIRED.

b. 14 inch size and Up: 150 psig WOG at 275 degrees F.


B. Type BF-HP: ANSI Class 150 lug style carbon steel body, stainless steel disc and stem, RTFE seats and bushings. Acceptable Manufacturers: Crane, Hammond, Keystone, Milwaukee, and Stockham.
C. Operators:

1. 6 inch size and Less: Manual actuator handles with external indication of disc position, and suitable means of locking actuator in any fixed position.



USE SUBPARAGRAPH ABOVE AND/OR BELOW AS REQUIRED.

2. 8 inch size and Up: Worm gear operator.


USE ARTICLE BELOW WHEN SPECIFIC PURPOSE BALANCING DEVICES (BELL & GOSSETT CIRCUIT SETTER, ARMSTRONG CBU, ETC) ARE NOT REQUIRED.

2.08 COMBINATION BALANCING AND SHUT-OFF VALVES
A. Heavy duty brass construction of angle or straightway pattern with 200 psig working water pressure at 250 degrees F, one union connection and one threaded or solder end, visible graduated dial indicator, memory stop, and wheel handle with full turn opening. Acceptable Manufacturers: Dunham-Bush, and Spirax Sarco.
USE ARTICLE BELOW WITH REFRIGERANT PIPING SYSTEMS.

2.09 REFRIGERANT VALVES
A. Valves shall have forged brass or bronze bodies, conforming to ASME B31.5 Code for Refrigerant Piping. Acceptable Manufacturers: Henry, Mueller, and Superior.
B. Type RG: Stop valve of the globe or angle design.

1. 5/8 inch od and Less: Packless metal diaphragm valve with solder type or flared ends.

2. 3/4 inch od and Up: Packed backseating valve with wing cap seal with stem operating socket formed in top, and solder type ends.
C. Type RH: Purge, drain or refrigerant charging valve of angle or globe design, with packless metal diaphragm with flared ends, and removable seal cap chained to valve body.
D. Type RI: Fusible plug valve with a melting point of fusible metal approximately 212 degrees F., conforming to ASHRAE 15 Code for Mechanical Refrigeration.
E. Type RJ: Relief valve conforming to ASHRAE 15 Code for Mechanical Refrigeration.
F. Type RK: Check valve of spring operated, guided piston type with flared ends in sizes thru 5/8 inch od, and solder type ends in sizes through 7/8 inch od.
G. Type RL: Check valve of spring operated, guided piston type with bolted bonnet or cover plate, and solder type ends in sizes 1-1/8 inch od thru 4-1/8 inch od.
USE ARTICLE BELOW IN POWER PLANT, AND HIGH TEMPERATURE WATER PROJECTS. EDIT AS REQUIRED.

2.10 CAST OR FORGED STEEL VALVES
A. Gate Valves:

1. Type GV-4: Cast steel body, bolted bonnet, OS & Y, rising stem, solid wedge, flanged ends, Class 300 built for 270 psig at 850 degrees F.

a. Body and Bonnet: Cast steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Seat Rings: Copper nickel alloy or monel.

d. Wedge: Steel with stainless steel face hardened.

e. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, minimum of six packing rings.

f. Handwheel: Steel or malleable iron.

2. Type GV-6: Cast steel body, bolted bonnet, OS & Y, rising stem, solid wedge, welding ends, Class 300 built for 270 psig at 850 degrees F.

a. Body and Bonnet: Cast steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Seat Rings: Copper nickel alloy or monel.

d. Wedge: Steel with stainless steel face hardened.

e. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, minimum of six packing rings.

f. Handwheel: Steel or malleable iron.

3. Type GV-7: Forged steel body, bolted bonnet, OS & Y, rising stem, solid wedge, threaded ends, Class 800 built for 715 psig at 850 degrees F.

a. Body and Bonnet: Forged steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Seat Ring: Stainless steel, seat hardened to 400 Brinnel.

d. Wedge: Stainless steel surface hardened to 400 Brinnel.

e. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, minimum of six packing rings.

f. Handwheel: Steel or malleable iron.

4. Type GV-8: Forged steel body, bolted bonnet, OS & Y, rising stem, solid wedge, welding ends, Class 800 built for 715 psig at 850 degrees F.

a. Body and Bonnet: Forged steel.

b. Stem: Stainless steel (18-18 or CR 13).

c. Seat Ring: Stainless steel, seat hardened to 400 Brinnel.

d. Wedge: Stainless steel surface hardened to 400 Brinnel.

e. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, minimum of six packing rings.

f. Handwheel: Steel or malleable iron.
B. Angle and Globe Valves:

1. Type AV-4: Cast steel body, bolted bonnet, OS & Y, rising stem, flanged ends, Class 300 built for 270 psig at 850 degrees F.

a. Body and Bonnet: Cast steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Seats and Disc: Copper nickel alloy or monel in combination with stainless steel. Disc shall be renewable.

d. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, minimum of six packing rings.

e. Handwheel: Steel or malleable iron.

2. Type AV-6: Cast steel body, bolted bonnet, OS & Y, rising stem, welding ends, Class 800 built for 715 psig at 850 degrees F.

a. Body and Bonnet: Cast steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Seats and Disc: Copper nickel alloy or monel in combination with stainless steel. Disc shall be renewable.

d. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, minimum of six packing rings.

e. Handwheel: Steel or malleable iron.

3. Type AV-7: Forged steel body, bolted bonnet, OS & Y, rising stem, threaded ends, Class 800 built for 715 psig at 850 degrees F.

a. Body and Bonnet: Forged steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Seat Ring: Stainless steel hardened to 400 Brinnel.

d. Disc: Renewable plug type, stainless steel hardened to 500 Brinnel.

e. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, a minimum of six packing rings.

f. Handwheel: Steel or malleable iron.

4. AV-8: Forged steel body, bolted bonnet, OS & Y, rising stem, welding ends, Class 800 built for 715 psig at 850 degrees F.

a. Body and Bonnet: Forged steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Seat Ring: Stainless steel hardened to 400 Brinnel.

d. Disc: Renewable plug type, stainless steel hardened to 500 Brinnel.

e. Bonnet Gasket: Spiral wound stainless steel with 316 spiral wound graphite, a minimum of six packing rings.

f. Handwheel: Steel or malleable iron.
C. Check Valves:

1. Type CV-4: Horizontal swing check, cast steel body and bolted cap, flanged ends, Class 300 built for 270 psig at 850 degrees F. Disc shall be heavy one piece construction, suspended on a detachable hinge with detachable hinge pin.

a. Body and Cap: Cast steel.

b. Seat Ring: Stainless steel.

c. Disc: Stainless steel and renewable.

d. Hinge Pin: Stainless steel and renewable.

e. Gasket: Soft corrugated iron.

2. Type CV-17: Lift check, forged steel body and bolted or union type cap, welding ends, Class 600 built for 535 psig at 850 degrees F.

a. Body and cap: forged steel.

b. Seat ring: stainless steel.

c. Disc: stainless and renewable.

d. Gasket: Spiral wound stainless steel with 316 spiral wound graphite.

3. Type CV-19: Ball check, forged steel body, bolted cap, threaded ends, Class 600 built for 535 psig at 850 degrees F.

a. Body and Cap: Forged steel.

b. Seat Ring: Stainless steel.

c. Ball: Stainless steel.

d. Gasket: Soft corrugated iron.

4. Type CV-21: Silent check, cast steel body, stainless steel trim and spring, flanged ends, Class 300 built for 270 psig at 850 degrees F.

a. Center guided or globe design with spring controlled closing action in which disc is returned to seat at zero velocity or before reversal of flow takes place in pipe line.

b. Disc shall be free floating controlled by velocity of flow, without aid of grease or counterweight balance for operation.

c. Check valve shall be designed to prevent grinding of seat and disc after factory assembly.
D. Stop-Check Valve:

USE SUBPARAGRAPH BELOW FOR POWER PLANTS WITH OPERATING PRESSURES OVER 200 PSIG.

1. Type SC-1: Angle valve, cast steel body, bolted bonnet, OS & Y, rising stem, flanged ends, built for 300 psig at 850 degrees F., 1100 psig hydrostatic shell tests, conforming to ASME Boiler Code. Valve shall be disc guided by piston or sleeve on stem, with deep packing box-minimum of 6 packing rings. Piston shall be fitted with corrosion resistant piston rings or lapped surface properly fitted in the valve body. Valve with disc guided by a sleeve on stem shall be complete with outside spring and lever assembly to cushion movement of valve disc, and shall have a lower disc guide to insure proper seating of disc. Materials:

a. Body and Bonnet: Cast steel.

b. Stem: Stainless steel (18-8 or CR 13).

c. Body Seat Ring: Stainless steel. Valves with integral welded seats are acceptable providing seat material is either stainless steel or stellite.

d. Disc: Stainless steel or stellite.

e. Piston Rings: Stainless steel or equivalent corrosion resistant material, as approved.

f. Bonnet Gasket: Soft corrugated iron.

g. Handwheel: Cast steel or malleable iron. 10-inch size and larger shall have impact type handwheels.

USE SUBPARAGRAPH BELOW FOR POWER PLANTS WITH OPERATING PRESSURES 200 PSIG AND LESS.

2. Type SC-2: Angle or globe valve, IBBM OS & Y, 250 psig WSP, 500 psig WOG, bolted bonnet, rising stem, and flanged ends.


E. Blow-off Valves:

1. Type BO-1: Angle or straight-away, seatless hollow plunger type, cast steel body and yoke, non-rising stem, flanged ends, Class 300 built for 270 psig at 850 degrees F., boiler MAWP of 515 psig, conforming to ASME Boiler Code. Bolted yoke shall have ball thrust bearing and heavy coil compression springs under yoke nuts. Valve shall be protected from leakage by packing rings above and below the inlet port. When valves are used in tandem, each shall have a “Caution Plate” attached noting valve operation sequence. Materials:

a. Body and Yoke: Cast steel.

b. Plunger: Nitralloy with meehanite head and cold drawn steel stem. Surface hardness of plunger shall be a minimum of 1050 Brinell.

c. Packing Rings: John Crane 387i braided graphite.

d. Handwheel: Cast iron.

2. Type BO-2: Unit tandem type, consisting of a seatless valve with flanged ends as specified for Type BO-1 and a disc and seat as specified for BO-3, built for 300 psig at 850 degrees F., boiler MAWP of 515 psig, conforming to ASME Boiler Code.

3. Type BO-3: Angle or straight-away, disc and seat type, steel body and bolted bonnet, OS & Y, stellited seat integral with body, disc of alloy as approved, hardened polished stainless steel stem, flanged ends, built for 300 psig at 850 degrees F., boiler MAWP of 515 psig, conforming to ASME Boiler Code. When valves are used in tandem, each shall have a “Caution Plate” attached noting valve operation sequence.

4. Type BO-4: Angle or straight-away, disc and set type, steel body and bolted bonnet, OS & Y, stellited seat integral with body, disc of alloy as approved, hardened polished stainless steel stem, welding ends, built for 300 psig at 850 degrees F., boiler MAWP of 515 psig, conforming to ASME Boiler Code. When valves are used in tandem, each shall have a “Caution Plate” attached noting valve operation sequence.
F. Blow-Down Valve:

1. Type BO-5: High pressure drop valve, designed for continuous blow-down, 1inch in size, threaded or socket weld ends, built for 600 psig WSP at 900 degrees F. Valve shall be single orifice, needle stem. Orifice tube shall be selected to suit boiler pressure and pounds of blow-down per hour. Materials:

a. Body and Bonnet: Forged steel.

b. Stem: Stainless steel, with a stellite or equivalent as approved material seat.

c. Orifice Tube: Stainless steel, with a stellite or equivalent as approved material facing.

d. Miscellaneous Trim: Such as threaded bushing, packing gland, packing gland bolts, pins shall be stainless steel.

e. Dial, Dial Plate, Indicator Bracket, Indicator Plate and Screws: Brass.

2. Type BO-6: Multiple orifice, continuous blow-down flow control unit, consisting of body with top body casting, orifice plate, rotating selector disc, index head, sediment chamber, shut-off plug valve, and all required fittings, assembled in a single unit, built for MAWP of 250 psig WSP. Orifice plate shall be stainless steel, head treated to 500 Brinell hardness and surface lapped to a mirror finish and flatness tolerance of approximately 3 light bands.


G. Back Pressure Valve:

1. Type BP-1: Multiport relief, cast iron housing, with bronze valve discs and piston set assemblies, carbon steel springs, flanged ends, built for 300 degrees F. maximum temperature, suited for a range of from 0 to 25 psig pressure. Flanges shall be 125 psig ANSI iron standard, faced and drilled.


2.11 WATER PRESSURE REDUCING VALVES
USE PARAGRAPH BELOW IN PLUMBING PROJECTS FOR MAIN WATER SERVICE.

A. Main Water Service:

1. Valve shall be an adjustable, direct acting, spring loaded, diaphragm operated, single seat, bottom guided type suitable for dead end service; guaranteed not to stick and shall maintain a constant discharge pressure which will not vary more than 1 psig for each 10 psig decrease in inlet pressure. Valves shall have cast iron, mild steel or bronze bodies, with either flanged ends or screwed ends with unions. Valve trim shall be of stainless steel with renewable composition disc. Parts subject to wear shall be renewable.

2. Material of diaphragm and disc shall be suitable for an operating temperature to 150 degrees F. The control line, from diaphragm casing, shall be connected to the discharge piping at least 10 feet downstream from pressure reducing valve. Control line shall be of same material as adjoining piping. Valves shall be standard weight for inlet pressures up to 125 psig, and extra heavy weight for inlet pressures in excess of 125 psig.

3. Acceptable Valves: Fisher Governor Type 655A, Kieley Mueller Type 4250.
USE PARAGRAPH BELOW FOR MAKE-UP WATER PIPING TO HVAC EQUIPMENT.

B. Cold Water Make-Up Service:

1. Adjustable direct acting, spring loaded, diaphragm operated, single seat type conforming to ASSE 1003 - Performance Requirements for Water Pressure Reducing Valves for Domestic Water Supply Systems. Acceptable Manufacturers: Bell & Gossett, Watts, and Wilkins.

a. Body: Brass or bronze construction.

b. Wetted Parts: Brass, bronze, stainless steel, or nickel alloy construction.

c. Renewable seat and removable composition disc.

d. Integral low inlet pressure check valve.

e. Operating Temperature Range: 33-160 degrees F.

f. Maximum Working Pressure: 125 psi.

2. Pressure reducing valves with integral strainers may be substituted for approval, in lieu of separate valve and strainer, if integral strainer and valve meet individual valve and strainer specifications.


2.12 STEAM PRESSURE REDUCING VALVES
A. External Pilot Operated Type:

PISTON TYPE VALVE WILL RESULT IN SMALLER VALVE SIZE THAN DIAPHRAM TYPE VALVE AND WILL NOT ALLOW FOR MULTIPLE SEAT SIZES. EDIT AS REQUIRED.

1. Valve shall be single seated, suitable for dead end service, without stuffing boxes. Pilot shall have an adjustable range spring and shall operate main valve by positioning pilot valve. Output of pilot valve shall position a piston or diaphragm in main valve. Control line for pilot shall be connected to discharge piping at least 10 feet downstream from main valve.

2. Pressure Classification:

a. Inlet pressures up to 15 psig incl. - low pressure - standard weight body.

b. Inlet pressures from 16 psig to 125 psig incl. - medium pressure - standard weight body.

c. Inlet pressures over 125 psig - high pressure - extra heavy body.

3. Construction: Valves shall have stainless steel trim with laminated bronze or stainless steel diaphragms. Main valve plug and seat shall be stainless steel, with seat rings and plugs of the easily removable and renewable type. Internal pilot type valves shall have removable bottom guides of stainless steel for main valve plug. Each pilot shall have an integral inlet strainer with stainless steel screen. Valves without integral inlet pilot valve strainers, shall be provided with a separate strainer with stainless steel screen, in control line to pilot. Valves 2 inches in size and smaller shall have screw ends, and over 2 inches in size shall have flanged ends. Screwed end valves shall be provided with a union on both sides of the valve.

4. Service Requirements: Each valve shall be guaranteed to maintain a discharge pressure which will not vary more than 5 percent from pressure setting. Should supply pressure deviate from design conditions, discharge pressure shall not vary more than l psi for each 30 psi change in inlet pressure. Valves shall be capable of handling a sudden load change, equivalent to 75 percent of its maximum capacity rating, within a period of 5 seconds and shall stabilize to set pressure within 10 seconds from initial start of this load change. Valves shall be adjustable for 50 percent above and 50 percent below set pressure, without changing pilot range spring.


B. Self-Contained Pressure Reducing Valve Without Pilot: A self-contained valve, without pilot, may be used when the maximum flow rate through the valve is 200 pounds of steam per hour or less. Valves shall, in general, conform to the requirements for classification and construction specified for the external pilot operated type. Valve shall maintain a discharge pressure within 20 percent of set pressure, at maximum flow.
2.13 STEAM PRESSURE REDUCING VALVES (PNEUMATICALLY OPERATED)
A. General Requirements: Each valve assembly shall consist of a diaphragm actuated main valve pneumatically operated by a control pilot, located on a remote control panel. Main valves shall be of equal percentage V-port type, with a rangeability of 50 to 1. When reduced port size (Cv index) and body size for a particular pressure reducing valve is not available for manufacturers listed valve body size and model, a liner modified parabolic or modified linear V-port type, with a minimum rangeability of 30 to 1 as recommended and guaranteed by valve manufacturer, may be submitted for approval. Main valves shall regulate accurately throughout range of pressure and flow conditions, and shall close on air failure. Acceptable Manufacturers: Fisher Governor, Honeywell and Kieley Mueller.
B. Pressure Classification:

1. Inlet Pressures Up To 100 psig Incl.: Cast iron body, built for 125 psig WSP.

2. Inlet Pressures 101 To 200 psig: Cast steel or nodular iron body, as recommended by the valve manufacturer, built for 300 psig WSP.
C. Sizing of Valves: Each pressure reducing valve shall be complete with required reduced trim, so that valve will have a Cv index, for specified flow in pounds of steam per hour, for its respective inlet and discharge pressure as indicated. Each valve shall have a body size, so as to result in a maximum outlet velocity of 25,000 fpm for body sizes 2 inches and under, and 23,000 fpm for valves over 2 inches in size. Valve Cv coefficients shall be so stated on shop drawing submissions.
D. Main Valve: Globe or cage type body, flanged ends, with face-to-face dimensions as recommended by the I.S.A. Seating surfaces on valve plug and seat ring, ringed with Alloy No. 6 or 17-4P-H trim. Plug and valve stem shall have top and bottom guides, or full sleeves guides, or be cage guided for body sizes of 1 inch and larger. Plug, seat, top guide and bottom guide or cage shall be renewable. Valve stem shall have a travel indicator and each valve shall have spring-loaded teflon packing. Diaphragm shall be neoprene and main valve shall be normally closed when control pressure on diaphragm is 3 psig or less.
E. Control Pilot: Indicating bourdon tube type with escape nozzle, flapper valve, proportioning bellows and calibrated pressure setting dial, proportional band adjustment, with feed back for sensitivity and pneumatic relay with differential diaphragms. Each control pilot shall have an air supply gage, air loading gage and a downstream delivery pressure gage, which shall constantly indicate controlled steam pressure.

1. Control pilot shall have a 2 to 200 percent proportional control band with automatic reset control mode and a sensitivity adjustment of not less than 0.1 of full scale at 100 percent proportional band, and shall have a direct setting knob.

2. Control pilot shall be enclosed in an aluminum die cast case and cover. Enclosure shall be complete with dust seal, deep waterproof gaskets, captive stainless steel hinge pins and latch shaft. Enclosure case shall be designed for flush mounting on a remote panel board.

3. Control pilot shall be Fisher Wizard 11 Type 4160 or United States Gage Figure 10.


F. Valve Positioner: Each valve positioner shall have travel adjustment; ready reversible action and shall contain an air escape device with a force balancing spring acting on an air bellows, all enclosed in an aluminum die cast case with connecting linkage. Furnish each positioner with an integral by-pass valve and 3 air pressure gages for indicating supply, loading and outlet pressure. Positioner shall be Moore Model 72, Fisher Governor Type 3580.
G. Air Set: Consisting of a filter-regulator suitable for 150 psig inlet pressure, with adjustable reduced range of 5 to 35 psig, complete with drip well, shall be provided for each pressure reducing valve assembly.
USE ARTICLE BELOW IN POWER PLANT PROJECTS ONLY.

2.14 PNEUMATICALLY ACTIVATED CONTROL VALVES
A. General Requirements: Each valve assembly shall consist of a diaphragm actuated main valve, pneumatically operated by a control pilot or controller, located on a remote control panel. Valve positioners shall be provided, when indicated in the schedule on the drawings. Main valves shall regulate accurately throughout the range of pressure and flow conditions, and shall close on air failure. Acceptable Manufacturers: Copes Vulcan, Fisher Governor, Honeywell and Mason Neilan.
B. Main Valve: Each valve shall have a cast iron body rated at 125 psi for inlet pressure of 100 psi or lower and 250 psi for inlet pressures in excess of 100 psi. Valves shall be either single or double seat plug type with linear or percentage flow characteristics. Valve trim shall be AISI Type 304 or 316 stainless steel, with top, bottom or cage guided plugs, renewable seats and guides, travel indicators and spring loaded teflon packing. Valve plugs for throttling service shall have a linear or percentage flow characteristic. Valves smaller than 2 inches may be screwed end type, with unions both sides of valve, and for sizes 2 inches and larger shall have flanged ends. Face to face body dimensions shall be as recommended by the Instrument Society of America (ISA RP4). Diaphragm actuators shall be full stroked when air to diaphragm is 3 to 15 or 6 to 30 psig, as required. Diaphragms shall be neoprene or Buna N with a nylon fabric insert.
C. Control Pilot or Controller for each main valve shall measure variable and transmit a signal to main valve, and shall have range adjustments, proportional band and reset adjustments. Each control pilot or controller shall be enclosed in a dust proof cabinet and shall be yoke, wall or panel mounted as indicated, not more than 4 feet off floor or walkway for easy accessibility. Control pilot or controller shall be Fisher Wizard Type D 4150D or E 600 A.
D. Valve Positioner: Assembly shall have travel adjustment, integral bypass valve and be complete with three air pressure gages. Positioners shall be provided when indicated on drawings and for following:

1. Single ported valve with high pressure drop.

2. Three way control valves.

3. Main valve located a great distance from controller.

4. Split service, i.e., two valves operating in sequence from a single controller.
E. Primary Elements: Shall be provided when indicated on drawings and shall be as follows:

1. For Pressure: Sensing device shall be a bourdon tube or bellows depending upon the pressure range.

2. For Temperature: Sensing device shall be a gas filled bulb type. Separable wells shall be provided when elements are installed in tanks or pipe lines.

3. For Level Control: Sensing device shall be of displacement float meter type, mounted in an external cast iron housing.

4. For Flow: Sensing device shall be an orifice plate, designed and installed in accordance with ASME Standards.
F. Air Set: Each set shall consist of a filter-regulator to insure clean air positioners. Air sets shall be suitable for 150 psi inlet pressure with adjustable reduced range of 5 to 35 psig, complete with drip well.
G. Sizing of Valves: Shall be in accordance with coefficients established by actual testing or in accordance with procedures laid down by the Instrument Society of America. Valve Cv coefficients shall be so stated on shop drawing submissions.
H. Valve Usage: Pneumatically activated control valves shall be used for the following applications when so indicated on drawings:

1. Pressure Control (PCV): Pressure reducing, pressure relief, back pressure.

2. Temperature Control (TCV): Domestic hot water heater control.

3. Flow Control (FCV): Gas, oil.

4. Level Control (LVC):
EDIT ARTICLE BELOW AS REQUIRED BY THE PARTICULAR JOB.

2.15 SAFETY AND RELIEF VALVES
A. General Requirements: Valves shall be as specified by ASME Code governing manufacture of such valves within scope of their particular usage, i.e., Heating Boilers, Power Boilers, Unfired Pressure Vessels, etc., shall be tested, rated and listed by National Board of Boiler and Pressure Vessel Inspections and shall bear symbol of ASME and NBB and PVI, unless otherwise specified. Liquid relief valves do not require ASME tagging or marking, or NBB and PVI Certification. Valves for applications specified shall conform to the ASME Code, Section IV, Heating Boilers and the following:

1. Valves for Steam Heating Boilers: (Operating at 16 psig and above) shall be sized in accordance with ASME Boiler Code and the State of New York Department of Labor Code, shall be ASME Standard, ASME tested, and NBB & PVI certified and marked in accordance with ASME requirements. Valve body and yoke shall be cast steel ASTM A 216 Grade WCB and stem, disc, seat bushing or nozzle, adjusting ring, compression screw and other trim parts shall be stainless steel or equivalent material as approved by State. Valves shall have flanged inlet and outlet connections, with inlet connection being 300 lb. class.

2. Valves for steam heating boilers operating at a maximum pressure of 15 psig shall have a maximum pressure setting of 15 psig. Sizing of valves shall be in accordance with ASME Table HG 400.1. Valve bodies shall be bronze or cast iron, with discs and seats of bronze.

3. Valves for hot water heating boilers shall conform to the requirements of the ASME Code and have a maximum pressure setting of 30 psig. Valves shall be of Safety Relief type, i.e., shall lift slowly to relieve normal thermal pressure build-up and “pop” to relieve excessive pressure due to “runaway” conditions, caused by the failure of any pressure control device and shut-down firing mechanism on excessive pressure indication. Valve bodies shall be bronze or cast iron, with non-vulcanizing synthetic discs and with seats of bronze.

4. Valves for direct fired domestic hot water boilers shall conform to requirements of ASME Code, Section IV, Paragraph HG 400.2 (a). Valves shall be of temperature-pressure type, rated at 125 psig test pressure. Thermostatic element shall, on rising temperature, cause the valve to open at 188 degrees F. and valve shall deliver its rated capacity at 208 degrees F. and close drip tight at 183 degrees F. Valves for use on gas fired heaters shall be AGA approved and shall be so stamped or marked.

5. Valves for combination domestic hot water heater and storage tanks shall conform to the requirements of ASME Code, Section IV and USA Standard Z21.22 and shall be NBB listed. Valves shall be of the temperature - pressure type. Thermostatic element shall, on rising temperature, cause the valve to open at 200 degrees F. and valve shall deliver its rated capacity at 210 degrees F. and close drip tight at 195 degrees F. Valves shall be sized in accordance with Unfired Vessel Code.

6. Valves for Unfired Pressure Vessels: Safety and safety relief valves on secondary side of unfired pressure tanks, water heaters and heat exchangers shall comply with Code requirements governing applicable equipment as outlined in ASME Code, Section IV, Article 4, Paragraph HG 400.3 and as follows: Secondary side of heat exchanger shall be protected by officially rated valves, set for same pressure or temperature as heretofore specified, when secondary side furnishes steam or hot water for purpose equivalent to purposes for which a boiler would be installed; valves for this purpose shall be sized in accordance with Unfired Vessel Code.

7. Relief Valves For Use On The Discharge Side of Steam Pressure Reducing Valve Stations:

a. When pressure reducing valve station is set to deliver steam at a pressure not to exceed 10 psig, safety relief valves shall comply with the requirements of the ASME Low Pressure Boiler Code, Section 4, Article 4 and shall be sized to relief all steam that reducing valve or by-pass valve can deliver when in a wide-open position, without permitting pressure to rise above 20 psig.

b. When pressure reducing valve station is set to deliver steam at a pressure in excess of 10 psig, safety relief valves shall be manufactured in accordance with the ASME Power Code, Section 1, but may be sized in accordance with the Unfired Pressure Vessel Code. Valves shall relieve all steam the pressure reducing valve or by-pass valve can deliver, without permitting pressure to rise more than 10 percent above the maximum allowable working pressure.

8. End Connections: Unless otherwise specified, safety valves, relief valves and safety relief valves, in sizes 3/4 inch to 3 inches IPS inclusive, may be furnished with male or female pipe thread inlet and female pipe thread outlet; valves over 3 inches IPS must be furnished with 125 lb. or 250 lb. flanged inlet and may be equipped with female threaded or 125 lb. flanged outlet.
2.16 NEEDLE STOP VALVES
A. For Temperatures to 300 degrees F.: All brass or forged carbon steel construction, union bonnet, screwed ends, built for 1000 psi at 300 degrees F.
B. For Temperature in Excess of 300 degrees F.: Carbon steel bar stock bodies, stainless steel stems, screwed ends, built for 4,500 psi at 450 degrees F.
C. For Use In High Temperature Water Piping: Carbon steel bar stock or forged steel bodies, stainless steel stems, screwed ends, built for 4,500 psi at 450 degrees F.
D. Acceptable Manufacturers: Marsh Instrument Company, Singer-American Meter Division, H.O. Trerice Co. and Weksler Instruments Corp.
2.17 GAGE COCKS
A. Gage Cocks: All brass construction, “T” or lever handles, screwed ends, built for 300 psig hydraulic pressure. Acceptable Manufacturers: Marsh Instrument Company, Mueller Instruments Co., H.O. Trerice Co. and Weksler Instruments Corp.
2.18 GROOVED END VALVES
A. Valves shall be of type, material and pressure rating, as required by the particular application, as approved.
2.19 VACUUM RELIEF VALVES
A. For Use With Steam:

1. Up to 15 psig: ITT Hoffman No. 62, and Watts Regulator Co. No. N36.



USE SUBPARAGRAPH ABOVE AND/OR BELOW. EDIT AS REQUIRED.

2. 16 psig to 150 psig: ITT Hoffman No. 62.


B. For Use With Water: Watts Regulator Co. No. N36.
2.20 BALL VALVES
A. Type BV: 150 psig WSP, 600 psig WOG, 2 piece bronze body, solid blow-out proof stem, teflon seats, chrome plated brass ball, teflon seals, corrosion resistant steel lever handles with vinyl grips, balancing stop, and threaded or solder ends. Acceptable Manufacturers: Conbraco, Hammond, Milwaukee, Nibco, and Watts.
2.21 SELF CONTAINED THERMOSTATIC RADIATOR CONTROL VALVE
A. Type: NPT Nickel-plated forged brass body with union outlet, EPDM disc, stainless steel spindle, replaceable insert, actuators capable of being changed without draining the system, valve mounted setting knob and remote temperature sensor (46 - 80 Degree F range), brass sensor with sensor guard, stainless steel capillary tube, fully automatic- non electric, long term tested to 5000 cycles (1.3 Degree F).

1. Pressure Ratings:

a. Maximum WaterTemperature: 250 degrees F.

b. Maximum Steam Pressure: 15 psig.

c. Max. Static Pressure: 145 psi

d. Max. Differential Pressure: 20 psi (Sized for 5 psi pressure drop at design flow)

2. Valve Coefficients (Cv):

a. 1/2 inch body size: 1.8

b. 3/4 inch body size: 2.5

c. 1 inch body size: 2.74

d. 1-1/4 inch body size: 5.0
B. Acceptable Manufacturer: MACON CONTROLS, 118 Exchange Street, Chicopee, MA, 01013, (413) 594-8695.

PART 3 EXECUTION
3.01 INSTALLATION
A. General: Install valves at locations noted on the drawings or specified.
3.02 MANUAL CONTROL VALVES FOR DIRECT RADIATION
A. Provide manually operated valve for each cast iron radiator, convector or finned type radiator. Do not install manually operated valves on any standing radiation, which is provided with an individual automatic temperature control valve.
B. Steam Radiation Application:

1. Install globe, angle or straight-way type radiator valves for all steam fed cast iron radiators, convectors or finned type radiators. Where an angle or straight-way type valve cannot be used, install an offset body globe or offset corner pattern valve. Size valves in accordance with the following:

a. 1/2 inch for radiation 40 sq ft EDR and under.

b. 3/4 inch for 41 to 100 sq ft EDR.

c. 1 inch for 101 to 150 sq ft EDR.
C. Hot Water Application:

1. Install globe, angle or straight-way type radiator valves for all hot water radiation. Where a regular globe or angle type valve cannot be used, install an offset body globe or offset corner pattern valve. Size valve full size of supply run out serving each heating unit.

2. Install balancing fittings, full size of runouts, on all standing hot water radiation, whether or not provided with an automatic temperature control valve. Install balancing fittings in the returns only, of radiation installed in series.
USE ARTICLE BELOW ONLY WITH MAIN STEAM PRV STATIONS.

3.03 STEAM PRESSURE REDUCING VALVE STATIONS
A. When indicated on drawings, install one or more safety relief valves, on the “down-stream” or reduced pressure side of valve stations, at a point below the by-pass connection.
B. Vents from Safety Relief Valves: Terminate vents outside building, unless otherwise indicted on drawings.
3.04 DISCHARGE PIPING FROM LIQUID RELIEF VALVES
A. Connection vent piping to the discharge outlet of all relief valves and terminate over floor drain, bell outlet or other approved point of waste.
EDIT ARTICLE BELOW AS REQUIRED.

3.05 VALVE APPLICATION SCHEDULE
A. Schedule of valve applications for the different services is as follows:

1. Bearing Coolant (BWS & BWR) 125 psig and less:

a. 2 inches and less: Screwed end, D gates, 0 globe or angles and U checks.

b. 2-1/2 inches and Up: Flanged end, C gates or BF butterflies, C or K globe or angles and V checks.

2. Boiler Blow-off (BO and CBD) 300 psig and less: Flanged end. Refer to specifications of blow-off valves in this section.

3. Boiler Feed Pump Suction (BFS) 125 psig and less:

a. 2 inches and Less: Screwed end, A gates and J globe or angles.

b. 2-1/2 inches and Up: Flanged end, C gates and K globe or angles.

4. Boiler Feed Pump Discharge (BFD) 126 to 250 psig:

a. 2 inches and Less: Screwed end, G gates, N globe or angles and CV-21 checks (except at boiler).

b. 2-1/2 inches and Up: Flanged end, F gates, M globe or angles and CV-21 checks (except at boiler).

5. Boiler Feed at Boiler (BFD) 300 and less:

a. 1-1/2 inches and Less: Weld end, AV-8 globe or angles and CV-17 checks.

b. 2 inches and Up: Flanged end, AV-4 globe or angles and CV-4 checks.

6. Boiler Trim, 300 psig and less, 2 inches and less: Screwed end, GV-7 gates and AV-7 globe or angles.

7. Boiler Trim, Soot Blower, 300 psig and less, 2-1/2 inches and up: Flanged end, GV-4 gates and AV-4 globe or angles.

8. Boiler Stop Check, 300 psig and less: Flanged end, SC-1 angles.

9. Boiler Header Stop, 300 psig and less: Flanged end, AV-4 globe or angles.

10. Boiler Feed Pump, Suction and Discharge (BFS & BFD), 125 psig and less:

a. 4 inches and Less: Screwed end, A gates, J globe or angles and S checks.

b. 5 inches and Up: Flanged end, C gates, K globe or angles and W or Z checks.

11. Chemical Feed at Boiler (CMF), 300 psig and less, 2 inches and less: Screwed end, GV-7 gates, AV-7 globe or angles and CV-19 checks.

12. Chemical Feed, at Chemical Tank and Pump (CMF), 300 psig and less, 2 inches and less: Screwed end, D gates, J globe or angles and X checks.

13. Chemical Feed (CMF) 125 psig and less:

a. 3 inches and Less: Screwed or solder ends, A or D gates, J or 0 globe or angles and S or U checks.

b. 5 inches and Up: Flanged end, C gates, K globe or angles and V checks.

14. Chilled Water (CWS & CWR) 125 psig and less:

a. 3 inches and Less: Screwed or solder ends, A or D gates or BV balls, J or 0 globe or angles and S or U checks.

b. 4 inches and Up: Flanged end, C gates or BF butterflies, K globe or angles and V checks.

15. Chilled Water (CWS & CWR) 126 to 250 psig: Flanged end, F or G gates or BF-HP butterflies, M globe or angles and X or Y checks.

16. Cold Water in Buildings and Tunnels (CW) 125 psig and less:

a. 3 inches and Less: Solder end, D gates or BV balls, 0 globe or angles and U checks, or flanged end, C gates, K globe or angles and V checks, with solder joint companion flanges.

b. 4 inches and Up: Flanged end, C gates or BF butterflies, K globe or angles and V checks.

17. Compressed Air (A) 125 psig and less:

a. 2 inches and Less: Screwed end, A gates, J globe or angles and W checks.

b. 2-1/2 inches and Up: Flanged end, C gates, K globe or angles and W checks.

18. Condensate Returns (LPR & MPR) 125 psig and less:

a. 4 inches and Less: Screwed end, A or C gates, J globe or angles and S checks.

b. 5 inches and Up: Flanged end, C gates, K globe or angles and V checks.

USE CONDENSATE RETURNS PARAGRAPH ABOVE OR BELOW, CHECK WITH DESIGNER.

19. Condensate Returns (LPR & MPR) 125 psig and less:

a. 2 inches and Less: Screwed end, A gates, J globe or angles and S checks.

b. 2-1/2 inches and Up: Flanged end, C gates, K globe or angles and V checks.

20. Condenser Water (CF & CR) 125 psig and less:

a. 3 inches and Less: Screwed or solder ends, A or D gates or BV balls, J or 0 globe or angles and S or U checks.

b. 4 inches and Up: Flanged end, C gates or BF butterflies, K globe or angles and V checks.

21. Condenser Water (CF & CR) 126 to 250 psig: Flanged end, F or G gates or BF-HP butterflies, M globe or angles and X or Y checks.

22. Continuous Blow Down - Control Valve (CBD) 300 psig and less, 2 inches and less: Screwed end, B0-6 blow down valves.

23. Continuous Blow Down - Shut Off Valve (CBD) 300 psig and less, 2 inches and less: Screwed end, GV-7 gates and AV-7 globe or angles.

24. Domestic Hot Water and Circulating (DHW & DHWC):

a. 3 inches and Less: Solder end, D gates or BV balls, 0 globe or angles and U checks.

b. 4 inches and Up: Flanged end, C gates or BF butterflies, K globe or angles and V checks.

25. Fuel Oil Fill (FOF) 125 psig and less, 2-1/2 inches and up: Flanged end, C gates, K globe or angles and V checks.

26. Fuel Oil Pump Suction (FPS) 125 psig and less:

a. 2 inches and Less: Screwed end, A gates, J globe or angles.

b. 2-1/2 inches and Up: Flanged end, C gates, K globe or angles.

27. Fuel Oil Pump Discharge (FPD) 126 to 250 psig:

a. 2 inches and Less: Screwed end, G gates, N globe or angles and X checks.

b. 2-1/2 inches and Up: Flanged end, F gates, M globe or angles and Y checks.

28. Fuel Oil Return (FOR) 125 psig and less:

a. 2 inches and Less: Screwed end, A gates, J globe or angles and S checks.

b. 2-1/2 inches and Up: Flanged end, C gates, K globe or angles and V checks.

29. Fuel Oil, No. 2 (FOS, FOR & FPD) 125 psig and less, 1 inch and less: Screwed end, A gates, J globes and S checks, with flared or ferrule copper tubing adapters.

30. Gas - Natural, Manufactured or Mixed Fuel (G) 125 psig and less:

a. 2 inches and Less: Screwed end, AB plug valves.

b. 2-1/2 inches and Up: Flanged end, AA plug valves.

31. Gas, Underground (G): Dresser end, AA plug valves.

32. Gas, Bottled Liquified Petroleum (BG): Screwed end, A gates and J globe or angles, with flared or ferrule copper tubing adapters.

33. High Temperature Water (HTS & HTR) 300 psig and less: Weld end, GV-8 gates, AV-8 globe or angles and CV-21 checks.

34. Hot Water (HWS & HWR) 125 psig and less:

a. 3 inches and Less: Screwed or solder ends, A or D gates or BV balls, J or 0 globe or angles and S or U checks.

b. 4 inches and Up: Flanged end, C gates or BF butterflies, K globe or angles and S checks.

35. Hot Water (HWS & HWR) 126 to 250 psig: Flanged end, F or G gates or BF-HP butterflies, M globe or angles and X or Y checks.

36. Instrument Air (IA) 60 psig and less, 1 inch and less: Screwed end, A gates and J globe or angles, with flared or ferrule copper tubing adapters.

37. Refrigerants R 12, R 22, and R 502 - Suction, Liquid and Hot Gas (RS, RL, HG, & RD) 350 psig and less, Up to 4-1/8 inches O.D.: Brazing end, RG globe and angles and RK or RL checks.

38. Refrigerants R 12, R 22, and R 502 - Purge, Drain and Charging (RS, RL, HG & RD) 350 psig and less, Up to 4-1/8 inches O.D.: Solder end, RH globe and angles.

39. Secondary Water (SWF & SWR) 125 psig and less:

a. 3 inches and Less: Screwed or solder ends, A or D gates or BV balls, J or 0 globe or angles and S and U checks.

b. 4 inches and Up: Flanged end, C gates or BF butterflies, K globe or angles and S checks.

40. Steam (LPS & MPS) 125 psig and less:

a. 4 inches and Less: Screwed end, A or C gates, J globe or angles and S checks.

b. 5 inches and Up: Flanged end, C gates, K globe or angles and V checks.

41. Steam (HPS) 126 to 250 psig:

a. 2 inches and Less: Screwed end, G gates, N globe or angles and X checks.

b. 2-1/2 inches and Up: Flanged end, F gates, M globe or angles and Y checks.


END OF SECTION



Updated 04/16/2009

Printed 03/02/2018 230523 - Project No.



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