4820-01-284-2170, VALVE,STOP-CHECK

National Stock Number:
4820-01-284-2170

Federal Supply Class:
4820

National Item Identification Number:
012842170

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:

2111	11859	HUNT VALVE COMPANY, INC.
M2-5B122G	30263	PIMA VALVE, LLC
M2-5B122G-2.5IN	30263	PIMA VALVE, LLC

Techincal Specification:

BOLT CIRCLE NOMINAL DIAMETER	5.500 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER	0.750 INCHES ALL ENDS
BOLT HOLE QUANTITY	4 ALL ENDS
BONNET TYPE	OUTSIDE SCREW-YOKE
BONNET ATTACHMENT METHOD	BOLTED
CONNECTION TYPE	FLANGE ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
FACE TO FACE DISTANCE	8.000 INCHES
FLANGE FACE DESIGN	PLAIN ALL ENDS
FLANGE SHAPE	ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B147,ALLOY 8A ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL	COPPER ALLOY AND MANGANESE STEM
MATERIAL	COPPER ALLOY FLOW CONTROL DEVICE
MATERIAL	COPPER ALLOY BODY
MAXIMUM OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER	7.000 INCHES ALL ENDS
NOMINAL THICKNESS	0.562 INCHES ALL ENDS
STYLE DESIGNATOR	STRAIGHT THRU FLANGED ENDS
VALVE OPERATION METHOD	MANUAL
VALVE SIZE	2.500 INCHES

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