4820-01-272-7517, VALVE,STOP-CHECK

National Stock Number:
4820-01-272-7517

Federal Supply Class:
4820

National Item Identification Number:
012727517

Description:
VALVE,STOP-CHECK

Detail:
A VALVE WITH A BOLT OR STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST POSITION, THE VALVE DISK IS LOCATED AND LOCKED AGAINST THE SEAT PERMITTING NO FLUID FLOW THROUGH THE VALVE. IN THE SECOND POSITION, ONE SIDE OF THE VALVE DISK IS LOCATED AGAINST THE SEAT PERMITTING MOVEMENT OF THE DISK IN A MANNER THAT WILL ALLOW A FLOW OF FLUID IN ONE DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN. SEE ALSO VALVE (1), LIFT-CHECK AND VALVE (1), STOP-LIFT-CHECK.

Manufacturer Information:

152F-8-SC-4IN AND 8698	79342	WILLIAM E WILLIAMS VALVE CORP
152F-8-SC-4IN AND 8698-I	79342	WILLIAM E WILLIAMS VALVE CORP

Techincal Specification:

BOLT HOLE NOMINAL DIAMETER	0.750 INCHES ALL ENDS
BOLT HOLE QUANTITY	8 ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER	7.500 INCHES ALL ENDS
BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	OUTSIDE SCREW-YOKE
CONNECTION TYPE	FLANGE ALL ENDS
FACE TO FACE DISTANCE	11.500 INCHES
FLANGE FACE DESIGN	RAISED STRAIGHT ALL ENDS
FLANGE SHAPE	ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE	DISK
MATERIAL	NICKEL ALLOY FLOW CONTROL DEVICE
MATERIAL	NICKEL ALLOY SEAT
MATERIAL	STEEL BODY
MATERIAL	STEEL CORROSION RESISTING STEM
MAXIMUM OPERATING TEMP	500.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED	WATER, SALT SINGLE RESPONSE
MOUNTING POSITION	HORIZONTAL
NOMINAL OUTSIDE DIAMETER	9.000 INCHES ALL ENDS
NOMINAL THICKNESS	0.938 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER	6.188 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT	0.062 INCHES ALL ENDS
RENEWABLE SEAT RING TYPE	THREADED OR WELDED
STYLE DESIGNATOR	STRAIGHT THRU FLANGED ENDS
VALVE OPERATION METHOD	AUTOMATIC
VALVE SIZE	4.000 INCHES

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