4820-01-323-7476, VALVE,GATE

National Stock Number:
4820-01-323-7476

Federal Supply Class:
4820

National Item Identification Number:
013237476

Description:
VALVE,GATE

Detail:
A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.

Manufacturer Information:

803-2177917 8IN	53711	NAVAL SEA SYSTEMS COMMAND
803-2177917 REV. L	80064	NAVAL SHIP SYSTEMS COMMAND
803-2177917-081	53711	NAVAL SEA SYSTEMS COMMAND

Techincal Specification:

BOLT HOLE QUANTITY	10
BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	INSIDE SCREW
CONNECTION TYPE	FLANGE, ROUND W/HOLES
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL AND 1 GASKET
FACE TO FACE DISTANCE	9.500 INCHES
FLANGE DIAMETER	12.375 INCHES
FLANGE FACE DESIGN	PLAIN
INLET RELATIONSHIP WITH OUTLET	IDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-288,COMP A OR E FED SPEC SINGLE MATERIAL RESPONSE DISK
MATERIAL	COPPER ALLOY BODY
MATERIAL	NICKEL ALLOY DISK
MATERIAL	NICKEL ALLOY SEAT
MATERIAL	NICKEL ALLOY STEM
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED	150.0 FAHRENHEIT WATER-OIL-GAS
OPERATING PRESSURE AND TYPE	250.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED
PRESSURE CLASS	250.0 POUNDS
VALVE OPERATION METHOD	MANUAL
VALVE SIZE	8.000 INCHES
STEM TYPE	RISING

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