4820-01-275-4160, VALVE,STOP-CHECK

National Stock Number:
4820-01-275-4160

Federal Supply Class:
4820

National Item Identification Number:
012754160

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:

2645	11859	HUNT VALVE COMPANY, INC.
B-1221-E 2.50IN	30263	PIMA VALVE, LLC
B-122D-0000	30263	PIMA VALVE, LLC
B1221E-0250	30263	PIMA VALVE, LLC

Techincal Specification:

BOLT CIRCLE NOMINAL DIAMETER	6.000 INCHES ALL ENDS
BOLT HOLE NOMINAL DIAMETER	0.812 INCHES ALL ENDS
BOLT HOLE QUANTITY	8 ALL ENDS
BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	OUTSIDE SCREW-YOKE
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 B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B67 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM
MEDIA FOR WHICH DESIGNED	STEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNED	WATER-OIL-GAS SECOND RESPONSE
MOUNTING POSITION	HORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER	7.000 INCHES ALL ENDS
NOMINAL THICKNESS	0.562 INCHES ALL ENDS
OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHOD	MANUAL
VALVE SIZE	2.500 INCHES
STYLE DESIGNATOR	STRAIGHT THRU FLANGED ENDS
SUPPLEMENTARY FEATURES	THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL;THE CURRENT APPROVED SOURCES,30263 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984,THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTSO MATERIAL AFTER 1984

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