4820-01-435-3881 VALVE,SAFETY RELIEF Index 5305-01-435-3883 SCREW,CLOSE TOLERANCE

National Stock Number:
4820-01-435-3882

Federal Supply Class:
4820

National Item Identification Number:
014353882

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:
SS-4CA-EP-15002570SWAGELOK CO
SS-4CA-EP-15018034NUPRO CO
SS-4CA-EP-1503T9T9SWAGELOK CO


Techincal Specification:
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS.
VALVE OPERATION METHODAUTOMATIC
MATERIALSTEEL COMP 316 BODY
STEEL COMP 316 FLOW CONTROL DEVICE
STEEL COMP 316 PACKING
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A276 ASSN STD SINGLE MATERIAL RESPONSE BODY
ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
ASTM A167 ASSN STD SINGLE MATERIAL RESPONSE PACKING
FLOW CONTROL DEVICEPOPPET
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP300.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
OPENING PRESSURE SETTING150.0 POUNDS PER SQUARE INCH
MINIMUM OPERATING TEMP-50.0 DEG FAHRENHEIT


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