4820-01-287-0939, VALVE,GATE

National Stock Number:
4820-01-287-0939

Federal Supply Class:
4820

National Item Identification Number:
012870939

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:

LHD8426 2.50IN FIG.30W3

79342

WILLIAM E WILLIAMS VALVE CORP

Techincal Specification:

BONNET TYPE	OUTSIDE SCREW-YOKE
BONNET ATTACHMENT METHOD	BOLTED
CONNECTION TYPE	SOCKET, WELD, PIPE
INLET RELATIONSHIP WITH OUTLET	IDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A182 BR. F6 ASSN STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A182 GR. F6 ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A182 GR. F6 ASSN STD SINGLE MATERIAL RESPONSE DISK
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A216 GR.WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL	STEEL CORROSION RESISTING DISK
MATERIAL	STEEL CORROSION RESISTING SEAT
MATERIAL	STEEL CORROSION RESISTING STEM
MATERIAL	STEEL UNS J03002 BODY
NOMINAL PIPE SIZE ACCOMMODATED	2.500 INCHES
SPECIAL FEATURES	SEAT RING HAS STELLITE OVERLAY
STEM TYPE	RISING
VALVE OPERATION METHOD	MANUAL
VALVE SIZE	2.500 INCHES

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