4820-01-285-7230, VALVE,SAFETY RELIEF

4820-01-285-7229 VALVE,RELIEF,PRESSURE AND TEMPER

National Stock Number:
4820-01-285-7230

Federal Supply Class:
4820

National Item Identification Number:
012857230

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:

20213GM41M	01343	ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20213GM41M	15187	EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
20213GM41MVM	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG

Techincal Specification:

ADJUSTABLE PRESSURE RANGE	+35.0 TO 44.0 POUNDS PER SQUARE INCH
CONNECTION STYLE	SOCKET WITH BRAZING RING ALL ENDS
CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B-61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
MATERIAL	COPPER ALLOY 922 BODY
MATERIAL	NICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL	NICKEL ALLOY SEAT
MATERIAL	NICKEL ALLOY STEM
MAXIMUM OPERATING TEMP	150.0 FAHRENHEIT 1ST RESPONSE
MAXIMUM OPERATING TEMP	250.0 FAHRENHEIT 2ND RESPONSE
MAXIMUM OPERATING PRESSURE	335.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING PRESSURE	400.0 POUNDS PER SQUARE INCH 1ST RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES ALL ENDS
SPECIAL FEATURES	SPRING NUMBER: 75-GS
STYLE DESIGNATOR	ANGLE
VALVE OPERATION METHOD	AUTOMATIC

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