| STYLE DESIGNATOR | SAFETY RELIEF |
| MATERIAL | ALUMINUM ALLOY BODY |
| PLASTIC POLYTETRAFLUOROETHYLENE BODY LINING |
| ALUMINUM ALLOY SEAT |
| SURFACE TREATMENT | ANODIZE |
| FLOW CONTROL DEVICE | POPPET |
| MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 27.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| VALVE DISCHARGE FLOW RATE | 4.5 CUBIC FEET PER MINUTE |
| CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| CONNECTION STYLE | FLARED (TUBE) 1ST END |
| SEAT ANGLE | 37.0 DEGREES 1ST END |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |
| THREAD SERIES DESIGNATOR | UNF 1ST END |
| NOMINAL THREAD SIZE | 0.437 INCHES 1ST END |
| THREAD QUANTITY PER INCH | 20 1ST END |
| THREAD CLASS | 3A 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| BONNET TYPE | INSIDE SPRING |
| BONNET ATTACHMENT METHOD | THREADED |
| DISK LOADING METHOD | SPRING |
| ADJUSTABLE PRESSURE RANGE | 21.0 TO 23.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND |
| PRESSURE TIGHT OUTLET SIDE |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 99221 |
| DESIGN CONTROL REFERENCE | 2394281-1 |