4820-00-275-2178, VALVE,GATE

National Stock Number:
4820-00-275-2178

Federal Supply Class:
4820

National Item Identification Number:
002752178

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:

MILV18110

81349

MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

BOLT HOLE QUANTITY	8
BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	OUTSIDE SCREW-YOKE
DEPARTURE FROM CITED DOCUMENT	AS MODIFIED BY TRIM MATERIAL SR-1 SPEC/STD CONTROLLING DATA MFR CODE 81349 NONDEFINITIVE GOVT SPEC/STD REF MIL-V-18110 COMPOSITION D
FACE TO FACE DISTANCE	8.500 INCHES
FEATURES PROVIDED	BONNET PACKING AND CLEANOUT POCKET
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-R-17131 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-R-17131 MIL SPEC SINGLE MATERIAL RESPONSE DISK
MATERIAL	COBALT ALLOY DISK
MATERIAL	COBALT ALLOY SEAT
MATERIAL	COBALT ALLOY STEM
MATERIAL	STEEL BODY
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED	650.0 FAHRENHEIT STEAM
NONDEFINITIVE SPEC/STD DATA	D COMPOSITION AND 150 PSI RATING
STEM TYPE	RISING
VALVE OPERATION METHOD	MANUAL
VALVE SIZE	3.500 INCHES

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