4820-00-287-3952, VALVE,GATE

National Stock Number:
4820-00-287-3952

Federal Supply Class:
4820

National Item Identification Number:
002873952

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:

0417 1-1/4 IN	21368	FAIRBANKS CO THE
1640	37239	LUNKENHEIMER CO
FIG490	14959	CRANE CO DIV VALVE DIV
N0. 490 VALVE N.P.S. 1-1/4 IN.	14959	CRANE CO DIV VALVE DIV
1640-1 1/4 IN	37239	LUNKENHEIMER CO

Techincal Specification:

MATERIAL	IRON CAST UNS F12102 BODY
	COPPER ALLOY 836 SEAT
	COPPER ALLOY 836 STEM
	COPPER ALLOY 836 DISK
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A-126 CLASS B ASSN STD SINGLE MATERIAL RESPONSE BODY
	ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE SEAT
	ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE STEM
	ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE DISK
VALVE SIZE	1.250 INCHES
PRESSURE CLASS	150.0 POUNDS
MAXIMUM OPERATING PRESSURE AND MEDIA FOR WHICH DESIGNED	450.0 POUNDS PER SQUARE INCH STEAM
MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED	450.0 DEG FAHRENHEIT STEAM AND
	450.0 DEG FAHRENHEIT WATER-OIL-GAS
VALVE OPERATION METHOD	MANUAL
INLET RELATIONSHIP WITH OUTLET	IDENTICAL
CONNECTION TYPE	THREADED INTERNAL PIPE
NOMINAL PIPE SIZE ACCOMMODATED	1.250 INCHES
THREAD SERIES DESIGNATOR	NPT
NOMINAL THREAD SIZE	1.250 INCHES
STEM TYPE	RISING
BONNET TYPE	INSIDE SCREW
BONNET ATTACHMENT METHOD	U-BOLT
FEATURES PROVIDED	BONNET PACKING
SPECIAL FEATURES	SOLID WEDGE; TAPERED SEAT

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