Part Number
Part Number:
NSN:
NIIN:
Item Name:
VALVE , SAFETY RELIEF
Definition:
A VALVE DESIGNED TO AUTOMATICALLY RELEASE EXCESSIVE PRESSURES. IT IS ACTUATED BY STATIC PRESSURE UPSTREAM OF THE VALVE AND IS USED AS A SAFETY VALVE OR RELIEF VALVE, AND MAY BE SET TO CLOSE AT A PREDETERMINED PRESSURE. IT IS NOT DESIGNED FOR REGULATION OF CONTINUOUSLY FLUCTUATING LOADS. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. EXCLUDES VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
CAGE Information
| Code | Company |
|---|---|
| 81361 | EDGEWOOD CHEMICAL BIOLOGICAL CENTER |
Federal Supply Class
Title
VALVES, NONPOWERED
Inclusions:
INCLUDES AUTOMATIC NONPOWERED VALVES; GATE, GLOBE, ANGLE, CHECK, AND RELIEF VALVES; COCKS.
Exclusions:
EXCLUDES FIRE HYDRANTS (FSC 4210); SPRINKLER HEADS (FSC 4210); VALVES SPECIFICALLY DESIGNED FOR USE WITH FIRE FIGHTING EQUIPMENT (FSC 4210); PLUMBING EQUIPMENT, AND THE LIKE (FSC 4540).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AEHZ | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER, FRESH SINGLE RESPONSE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| STYL | STYLE DESIGNATOR | ERR-090 |
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| AWLS | CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS |
| FEAT | SPECIAL FEATURES | ALLOW FREE FLOW OF 23 GPM WHEN SYTEM PRESSURE EXCEEDS 260 PSIG (NORMAL--OPERATING PRESSURE IS 180 PSIG); RESET PRESSURE IS 220 PSIG; MANUAL PURGE CONTROL ON TOP OF VALVE; WORKING FLUID IS HOT WATER 95 PCT LIQUID 5 PCT VAPOR; CONSTRUCTION SUCH THAT NEITHER INTERIOR OR EXTERIOR OF VALVE IS ADVERSELY AFFECTED BY ALKALINE FLUIDS AND CHEMICALS; 3.12 IN. H; 1.25 IN. W; 2.0 IN. LG |
| AHNC | CONNECTION STYLE | ERR-090 ERR-100 |
| CQJX | NOMINAL THREAD SIZE | 0.500 INCHES ALL ENDS |
| THSD | THREAD SERIES DESIGNATOR | NPT ALL ENDS |