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		                        | National Stock Number:
 4820-00-826-0400
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 008260400
 
 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:
 
 | 1512VTZ72-3-4-1291T1423PSI | 38056 | ASHCROFT INC | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | ANGLE |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | STEEL CORROSION RESISTING BODY |  |  | COBALT ALLOY SEAT |  |  | COBALT ALLOY STEM |  | FLOW CONTROL DEVICE | POPPET |  | MAXIMUM OPERATING PRESSURE | 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | 750.0 DEG FAHRENHEIT SINGLE RESPONSE |  | CONNECTION TYPE | FLANGE 1ST END |  |  | FLANGE 2ND END |  | FLANGE SHAPE | ROUND WITH HOLES 1ST END |  |  | ROUND WITH HOLES 2ND END |  | NOMINAL OUTSIDE DIAMETER | 4.625 INCHES 1ST END |  |  | 3.187 INCHES 2ND END |  | BOLT HOLE QUANTITY | 4 1ST END |  |  | 4 2ND END |  | BOLT HOLE NOMINAL DIAMETER | 0.687 INCHES 1ST END |  |  | 0.562 INCHES 2ND END |  | BOLT CIRCLE NOMINAL DIAMETER | 3.250 INCHES 1ST END |  |  | 2.687 INCHES 2ND END |  | FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END |  |  | PLAIN 2ND END |  | ADJUSTABLE PRESSURE RANGE | 1291.0 TO 1423.0 POUNDS PER SQUARE INCH | 
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