4820-01-257-8660, VALVE,SAFETY RELIEF

National Stock Number:
4820-01-257-8660

Federal Supply Class:
4820

National Item Identification Number:
012578660

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:

20271QS41M	01343	ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
20271QS41M	15187	EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP
BAMAA07SAA	65079	DANCO VALVE COMPANY
D50UU-07-1/4 IN.	65079	DANCO VALVE COMPANY

Techincal Specification:

ADJUSTABLE PRESSURE RANGE	+136.0 TO 150.0 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 A276 ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY LINING
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	COPPER ALLOY BODY
MATERIAL	NICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL	NICKEL ALLOY STEM
NOMINAL PIPE SIZE ACCOMMODATED	0.250 INCHES ALL ENDS
SPECIAL FEATURES	SPRING RANGE 110 TO 160 POUNDS
VALVE OPERATION METHOD	AUTOMATIC
STYLE DESIGNATOR	ANGLE

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