4820-01-259-2274, VALVE,SAFETY RELIEF

4820-01-259-2273 VALVE,REGULATING,FLUID PRESSURE

4820-01-259-2275 VALVE,REGULATING,FLUID PRESSURE

National Stock Number:
4820-01-259-2274

Federal Supply Class:
4820

National Item Identification Number:
012592274

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:

20235	01343	ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20235L51, CD SHT 16282	15187	EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
20235L51M CD SHT 16282	01343	ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY

Techincal Specification:

ADJUSTABLE PRESSURE RANGE	+76.0 TO 90.0 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 STEM
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL	COPPER ALLOY 922 BODY
MATERIAL	NICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL	NICKEL ALLOY SEAT
MATERIAL	NICKEL ALLOY STEM
MAXIMUM OPERATING TEMP	165.0 FAHRENHEIT SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED	0.250 INCHES ALL ENDS
OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE
OPERATING PRESSURE	460.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE
SPECIAL FEATURES	SPRING NUMBER: 75L
VALVE OPERATION METHOD	AUTOMATIC
STYLE DESIGNATOR	ANGLE

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