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National Stock Number:
4820-00-202-8848
Federal Supply Class:
4820
National Item Identification Number:
002028848
Description:
VALVE,SAFETY RELIEF
Detail:
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.
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Manufacturer Information:
| AA21302 | 23168 | HAMMEL DAHL INC | | AA21302 | 34889 | HUNT VALVE COMPANY INC |
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Techincal Specification:
| ADJUSTABLE PRESSURE RANGE | +25.0 TO 50.0 POUNDS PER SQUARE INCH | | BOLT CIRCLE NOMINAL DIAMETER | 4.438 INCHES 1ST END | | BOLT HOLE NOMINAL DIAMETER | 0.562 INCHES 1ST END | | BOLT HOLE QUANTITY | 6 1ST END | | BONNET ATTACHMENT METHOD | BOLTED | | BONNET TYPE | INSIDE SPRING | | CONNECTION TYPE | FLANGE 2ND END | | CONNECTION TYPE | FLANGE 1ST END | | DISK LOADING METHOD | SPRING | | FACE TO FACE DISTANCE | 9.000 INCHES | | FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND BONNET PACKING AND PRESSURE TIGHT OUTLET SIDE | | FLANGE FACE DESIGN | PLAIN 1ST END | | FLANGE SHAPE | ROUND WITH HOLES 1ST END | | FLOW CONTROL DEVICE | DISK | | MATERIAL | COPPER ALLOY FLOW CONTROL DEVICE | | MATERIAL | COPPER ALLOY SEAT | | MATERIAL | COPPER ALLOY BODY | | MATERIAL | NICKEL ALLOY STEM | | MAXIMUM OPERATING PRESSURE | 75.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MEDIA FOR WHICH DESIGNED | WATER, FRESH SINGLE RESPONSE | | NOMINAL OUTSIDE DIAMETER | 5.562 INCHES 1ST END | | NOMINAL THICKNESS | 0.438 INCHES 1ST END | | STYLE DESIGNATOR | STRAIGHT THRU FLANGED ENDS | | VALVE OPERATION METHOD | AUTOMATIC OR MANUAL |
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