4820-01-187-6821 VALVE,SAFETY RELIEF Index 4820-01-187-6823 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-187-6822

Federal Supply Class:
4820

National Item Identification Number:
011876822

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.


Manufacturer Information:
157A 1-2X1 1-4I99565ADMIRAL VALVE LLC
157A 1/2X1 1/4 3000T6000PSI99565ADMIRAL VALVE LLC
MV57-90ASY6DERBYSHIRE MARINE PRODUCTS, LLC
6VR57-4-332142HYDRASEARCH COMPANY, LLC
6VR57-4-354716HYDRASEARCH CO., INC. DBA USE CAGE CODE 32142 FOR CATALOGING
88311766499565ADMIRAL VALVE LLC
MV57-971905DERBYSHIRE MACHINE & TOOL CO


Techincal Specification:
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALBRONZE BODY
PLASTIC POLYAMIDE FLOW CONTROL DEVICE
STEEL COMP 304 SEAT
FLOW CONTROL DEVICEDISK
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP225.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE1.250 INCHES 1ST END
0.500 INCHES 2ND END
THREAD DIRECTIONRIGHT-HAND ALL ENDS
BONNET TYPEINSIDE SPRING
BONNET ATTACHMENT METHODUNION
OPENING PRESSURE SETTING3000.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE AND
VALVE STEM LOCK SHIELD


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