FAIR Cryogenic Nomenclature System
Digit 1, 2, 3, 4 Accelerator systems
Digit 5 = Y FAIR Cryogenics
Digit 6 = Cryogenic devices
D Distribution box;
T Transfer line;
C interConnection between transfer line sections, feedboxes and distribution box;
F Feedbox;
J Jumper connection between feedbox and magnet cryostat;
B Vaccum Barrier;
R Return box (endbox);
W Warm piping for Cryogenics;
Cryogenic Devices
YD Cryogenic Distribution box
YT Cryogenic Transfer line;
YC Cryogenic interConnection between transfer line sections, feedboxes and distribution box;
YF Cryogenic Feedbox;
YJ Cryogenic Jumper connection between feedbox and magnet cryostat;
YR Cryogenic Return box (endbox);
YW Warm piping for Cryogenics.
Digit 7 = Subsystem in cryogenic devices
I Instrumentations;
H Headers (cryogenic piping);
V Valves;
X helium heat eXchanger in subcooler;
S thermal Shield;
If Digit 7 = I, then
8 = T Temperature sensor;
8 = P Pressure sensor;
9 = A Absolute pressure sensor;
9 = B Barometric pressure sensor;
9 = D Differential pressure sensor;
9 = R Gauge pressure sensor;
9 = V Vacuum pressure sensor;
8 = F Flow meter;
8 = L Level meter;
9 = H liquid Helium meter;
9 = N liquid Nitrogen meter;
For example,
- - - - Y F I P B
for
one Barometric Pressure Sensor in one Cryogenic Feedbox
If Digit 7 = H, then
Digit 8 =
1 Helium low temperature supercritical/liquid supply line;
2 Helium low temperature return line;
3 Helium shield temperature supply line;
4 Helium shield temperature return line;
5 Helium ambient temperature supply line;
6 Helium ambient temperature return line;
7 Helium purge line;
8 Helium low/ambient temperature multipurpose line;
If Digit 7 = V, then
Digit 8 =
C Control valve;
E Electric valve;
P Pneumatic valve;
Q Quench valve;
S Safety valve;
N Non-return valve (check valve);
H Hand valve;
O On/off valve (digital valve);
AND
Digit 9 =
1 Helium low temperature supercritical/liquid supply line;
2 Helium low temperature return line;
3 Helium shield temperature supply line;
4 Helium shield temperature return line;
5 Helium ambient temperature supply line;
6 Helium ambient temperature return line;
7 Helium purge line;
8 Helium low/ambient temperature multipurpose line;
Examples,
- - - - Y D V C 1
for
one Control Valve on the helium low temperature supercritical/liquid supply line in one Cryogenic Distribution box
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