4820-00-287-3437, VALVE,GATE

National Stock Number:
4820-00-287-3437

Federal Supply Class:
4820

National Item Identification Number:
002873437

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:

783-U 4IN	14959	CRANE CO DIV VALVE DIV
B12-7054P-02TS/8350-15C/88204967	57574	VELAN VALVE CORP.
MIL-DTL-18110	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MILV18110	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

MATERIAL	STEEL CORROSION RESISTING BODY
	COBALT ALLOY SEAT
	STEEL CORROSION RESISTING STEM
	COBALT ALLOY DISK
MATERIAL DOCUMENT AND CLASSIFICATION	A216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY
VALVE SIZE	4.000 INCHES
PRESSURE CLASS	900.0 POUNDS
VALVE OPERATION METHOD	MANUAL
INLET RELATIONSHIP WITH OUTLET	IDENTICAL
CONNECTION TYPE	BUTT WELD PIPE
NOMINAL PIPE SIZE ACCOMMODATED	4.000 INCHES
STEM TYPE	RISING
BONNET TYPE	OUTSIDE SCREW-YOKE
BONNET ATTACHMENT METHOD	PRESSURE SEAL, RING TYPE
FEATURES PROVIDED	BONNET PACKING
SPECIAL FEATURES	50 PERCENT LOWER OPERATING TORQUE ACHIEVED WITH NON-ROTATING STEM
NONDEFINITIVE SPEC/STD DATA	D COMPOSITION
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-DTL-18110

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