4820-00-202-8517, VALVE,GATE

National Stock Number:
4820-00-202-8517

Federal Supply Class:
4820

National Item Identification Number:
002028517

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:

MILV1189	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
N10011-100	95995	WALWORTH CO THE

Techincal Specification:

MATERIAL	COPPER ALLOY 922 BODY
	NICKEL ALLOY SEAT
	NICKEL ALLOY R-405 STEM
	COPPER ALLOY 922 DISK
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE BODY
	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT
	QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE DISK
VALVE SIZE	6.000 INCHES
MAXIMUM OPERATING PRESSURE AND MEDIA FOR WHICH DESIGNED	400.0 POUNDS PER SQUARE INCH WATER, SALT
VALVE OPERATION METHOD	MANUAL
BOLT HOLE QUANTITY	12
FACE TO FACE DISTANCE	8.000 INCHES
FLANGE FACE DESIGN	PLAIN
STEM TYPE	NONRISING
BONNET TYPE	INSIDE SCREW
BONNET ATTACHMENT METHOD	BOLTED
FEATURES PROVIDED	BONNET PACKING
NONDEFINITIVE SPEC/STD DATA	II TYPE
DEPARTURE FROM CITED DESIGNATOR	AS MODIFIED BY MATERIAL AND SIZE 6 IN.
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MILV1189

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