4820-01-540-7909, VALVE,STOP-CHECK

7641-01-540-7908 AERONAUTICAL GEOSPATIAL PRODUCTS

National Stock Number:
4820-01-540-7909

Federal Supply Class:
4820

National Item Identification Number:
015407909

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:

28S-FS4-SC/.50IN	61661	NEWMANS INC NEW JERSEY DIV
N0479-000	61661	NEWMANS INC NEW JERSEY DIV

Techincal Specification:

BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	OUTSIDE SCREW-YOKE
CONNECTION TYPE	UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE	SOCKET (PIPE) ALL ENDS
FURNISHED ITEMS AND QUANTITY	1 HANDWHEEL
FLOW CONTROL DEVICE	DISK
PART NAME ASSIGNED BY CONTROLLING AGENCY	GLOBE VALVE, STOP CHECK
MATERIAL	STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIAL	STEEL CORROSION RESISTING SEAT
MATERIAL	STEEL CORROSION RESISTING STEM
MATERIAL	STEEL UNS K03504 BODY
MAXIMUM OPERATING PRESSURE	800.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED	AIR SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED	0.500 INCHES ALL ENDS
SPECIAL FEATURES	END CONNECTIONS ARE SOCKET WELD IAW ASME/ANSI B16.11; SEAT IS HARD FACED WITH STELLITE 6; APPLICATION: HIGH PRESSURE AIR
STYLE DESIGNATOR	STRAIGHT THRU
VALVE OPERATION METHOD	MANUAL

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