6660-00-420-5567 COVER,HEAD,UPPER Index 6660-00-420-5569 CAP,PRESSURE ROLLER

National Stock Number:
4820-00-420-5568

Federal Supply Class:
4820

National Item Identification Number:
004205568

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:
D559A1M591816CIRCOR AEROSPACE, INC.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+0.5 TO 140.0 POUNDS PER SQUARE INCH
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
CONNECTION STYLEPLAIN (PIPE) FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPENING PRESSURE SETTING0.5 POUNDS PER SQUARE INCH
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALALUMINUM ALLOY 2024 AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALALUMINUM ALLOY 2024 SEAT
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDACETYLENE FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, GASEOUS THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDHYDROGEN FOURTH RESPONSE
MEDIA FOR WHICH DESIGNEDREFRIGERANT 12 FIFTH RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.125 INCHES FIRST END
NOMINAL THREAD SIZE0.125 INCHES FIRST END
THREAD SERIES DESIGNATORNPT FIRST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU W/BAFFLE
SURFACE TREATMENTCHROMIUM LOCATION NOT OTHERWISE SPECIFIED
THREAD DIRECTIONRIGHT-HAND FIRST END


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