5330-01-025-6843 GASKET Index 2990-01-025-6846 VALVE,POSITIVE CRANKCASE VENTILA

National Stock Number:
4820-01-025-6844

Federal Supply Class:
4820

National Item Identification Number:
010256844

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:
3978-422501HOWELL LABORATORIES INC
3978-4SET2022501HOWELL LABORATORIES INC


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+0.5 TO 2.4 POUNDS PER SQUARE INCH
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
FLOW CONTROL DEVICEDISK
MATERIALALUMINUM BODY
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
MAXIMUM OPERATING TEMP280.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDREFRIGERANT 12 SECOND RESPONSE
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENTANODIZE LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD QUANTITY PER INCH18 ALL ENDS
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) ALL ENDS


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