4820-01-272-6665, VALVE,STOP-CHECK

National Stock Number:
4820-01-272-6665

Federal Supply Class:
4820

National Item Identification Number:
012726665

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:

B1221A 1.50IN	30263	PIMA VALVE, LLC
FIG NO B-1221-A SZ 1 1/2 IN	11859	HUNT VALVE COMPANY, INC.
FIG NO B-1221-A SZ 1 1/2 IN	30263	PIMA VALVE, LLC

Techincal Specification:

BOLT HOLE NOMINAL DIAMETER	0.625 INCHES ALL ENDS
BOLT HOLE QUANTITY	4 ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER	3.875 INCHES ALL ENDS
BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	INSIDE SPRING
CONNECTION TYPE	FLANGE ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
FACE TO FACE DISTANCE	6.000 INCHES
FLANGE FACE DESIGN	PLAIN ALL ENDS
FLANGE SHAPE	ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	COPPER ALLOY 922 OR COPPER ALLOY 836 OVERALL
MAXIMUM OPERATING TEMP	366.0 FAHRENHEIT 2ND RESPONSE
MAXIMUM OPERATING TEMP	450.0 FAHRENHEIT 1ST RESPONSE
MAXIMUM OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH 2ND RESPONSE
MAXIMUM OPERATING PRESSURE	300.0 POUNDS PER SQUARE INCH 1ST RESPONSE
MEDIA FOR WHICH DESIGNED	STEAM SINGLE RESPONSE
MOUNTING POSITION	HORIZONTAL
NOMINAL OUTSIDE DIAMETER	5.000 INCHES ALL ENDS
NOMINAL THICKNESS	0.438 INCHES ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU FLANGED ENDS
SPECIAL FEATURES	STOP-CHECK TYPE
VALVE OPERATION METHOD	AUTOMATIC
VALVE SIZE	1.500 INCHES

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