| ADJUSTABLE PRESSURE RANGE | +76.0 TO 90.0 POUNDS PER SQUARE INCH |
| BONNET TYPE | INSIDE SPRING |
| BONNET ATTACHMENT METHOD | BOLTED |
| CONNECTION STYLE | SOCKET ALL ENDS |
| CONNECTION TYPE | UNTHREADED INTERNAL PIPE ALL ENDS |
| DISK LOADING METHOD | SPRING |
| FURNISHED ITEMS AND QUANTITY | 2 TAILPIECE AND 2 NUT AND 1 PLUGGED DRAIN AND 1 RELIEF PLUG |
| FLOW CONTROL DEVICE | DISK |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | 1" RELIEF VALVE TYPE 1751T |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC 1ST MATERIAL RESPONSE AND AMS 3660 ASSN STD 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| MATERIAL | COPPER ALLOY 922 BODY |
| MATERIAL | NICKEL ALLOY FLOW CONTROL DEVICE |
| MATERIAL | NICKEL ALLOY SEAT |
| MATERIAL | NICKEL ALLOY STEM |
| MAXIMUM OPERATING TEMP | 165.0 FAHRENHEIT SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES ALL ENDS |
| RENEWABLE SEAT RING TYPE | PRESSED-IN |
| SPECIAL FEATURES | FOR GAS SERVICE; VENT MUST BE OPEN TO ATMOSPHERE OR PIPED TO DOWNSTREAM PIPING; VENT PLUG (FIND NO. 27) AND ASSOCIATED O-RING (FIND NO. 28) ARE NOT TO BE INSTALLED WHEN VALVE IS USED IN AN AIR SYSTEM; HAS MONEL TRIM |
| STYLE DESIGNATOR | ANGLE |
| VALVE OPERATION METHOD | AUTOMATIC |