4820-01-010-1128, VALVE,STOP-CHECK

National Stock Number:
4820-01-010-1128

Federal Supply Class:
4820

National Item Identification Number:
010101128

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:

1421-0-3IN/142-0300/882039641	30263	PIMA VALVE, LLC
153F-3-NR	79342	WILLIAM E WILLIAMS VALVE CORP
MIL-DTL-22052	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-V-22052	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

BOLT CIRCLE NOMINAL DIAMETER	6.000 INCHES ALL ENDS
BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	OUTSIDE SCREW-YOKE
BOLT HOLE NOMINAL DIAMETER	0.750 INCHES ALL ENDS
BOLT HOLE QUANTITY	4 ALL ENDS
CONNECTION TYPE	FLANGE ALL ENDS
FIRST CONNECTION FACE TO CENTERLINE DISTANCE	4.750 INCHES
FLANGE FACE DESIGN	RAISED STRAIGHT ALL ENDS
FLANGE SHAPE	ROUND WITH HOLES ALL ENDS
FLOW CONTROL DEVICE	DISK
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A105, GRADE 2 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-R-17131,MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIAL	STEEL BODY
MATERIAL	STEEL CORROSION RESISTING STEM
MATERIAL	STEEL FLOW CONTROL DEVICE
MATERIAL	STEEL SEAT
MAXIMUM OPERATING PRESSURE	150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP	775.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED	STEAM SINGLE RESPONSE
MOUNTING POSITION	HORIZONTAL
NOMINAL OUTSIDE DIAMETER	7.500 INCHES ALL ENDS
NOMINAL THICKNESS	0.687 INCHES ALL ENDS
RAISED FACE NOMINAL DIAMETER	5.000 INCHES ALL ENDS
RAISED FACE NOMINAL HEIGHT	0.062 INCHES ALL ENDS
RENEWABLE SEAT RING TYPE	WELDED
SECOND CONNECTION FACE TO CENTERLINE DISTANCE	4.750 INCHES
SPECIAL FEATURES	VALVE SIZE 3 IN.
STYLE DESIGNATOR	ANGLE
VALVE OPERATION METHOD	MANUAL

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