| MATERIAL | COPPER ALLOY OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| STYLE DESIGNATOR | STRAIGHT THRU |
| FLOW CONTROL DEVICE | STEM OR |
| DISK |
| MAXIMUM OPERATING PRESSURE | 600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 40.0 DEG CELSIUS 1ST RESPONSE |
| 300.0 DEG CELSIUS 2ND RESPONSE |
| VALVE OPERATION METHOD | MANUAL |
| CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| CONNECTION STYLE | FLARELESS (TUBE) 1ST END |
| SEAT ANGLE | 20.0 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 SCREW |
| BONNET ATTACHMENT METHOD | THREADED |
| FEATURES PROVIDED | BONNET PACKING |