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 |
|---|---|
| 91816 | CIRCOR AEROSPACE INC. DBA CIRCLE SEA |
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 |
|---|---|---|
| AAJD | THREAD CLASS | 3A ALL ENDS |
| CQRB | SEAT ANGLE | 90.0 DEGREES 1ST END |
| THSD | THREAD SERIES DESIGNATOR | UNF 2ND END |
| CQJX | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS |
| MEDA | MEDIA FOR WHICH DESIGNED | ETHYLENE GLYCOL 4TH RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | HELIUM 5TH RESPONSE |
| AWLS | CONNECTION TYPE | THREADED INTERNAL BOSS 2ND END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END |
| STYL | STYLE DESIGNATOR | ERR-090 |
| CQGM | MAXIMUM OPERATING PRESSURE | 2500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 BODY |
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| MEDA | MEDIA FOR WHICH DESIGNED | AMMONIA, GASEOUS 2ND RESPONSE |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| AEHZ | MAXIMUM OPERATING TEMP | 275.0 DEG FAHRENHEIT SINGLE RESPONSE |
| CQCY | ADJUSTABLE PRESSURE RANGE | +10.0/+2400.0 POUNDS PER SQUARE INCH |
| CSDC | OPENING PRESSURE SETTING | 400.0 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3B 2ND END |
| AHNC | CONNECTION STYLE | ERR-090 ERR-100 |
| THSD | THREAD SERIES DESIGNATOR | UNJ 1ST END |
| CMLP | THREAD QUANTITY PER INCH | 20 1ST END |
| MEDA | MEDIA FOR WHICH DESIGNED | REFRIGERANT 12 3RD RESPONSE |