4820-00-121-6872, VALVE,STOP-CHECK

National Stock Number:
4820-00-121-6872

Federal Supply Class:
4820

National Item Identification Number:
001216872

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:

33311-30 W05-3084B-02TS	57574	VELAN VALVE CORP.
A7103-1L1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
B31644CL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
MIL-V-22094L1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
B31644C	63220	FLOWSERVE INC
MIL-V-22094	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
W05-3084B-02TSL1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
W05-3084B-02TS	57574	VELAN VALVE CORP.

Techincal Specification:

BONNET ATTACHMENT METHOD	BOLTED
BONNET TYPE	OUTSIDE SCREW-YOKE
CONNECTION STYLE	SOCKET (PIPE) FIRST END
CONNECTION TYPE	UNTHREADED INTERNAL PIPE FIRST END
CRITICALITY CODE JUSTIFICATION	ZZZY
FEATURES PROVIDED	VALVE STEM LOCK SHIELD AND BONNET PACKING
FLOW CONTROL DEVICE	DISK
OPERATING PRESSURE	1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIAL	STEEL COMP 410 FLOW CONTROL DEVICE
MATERIAL	STEEL COMP 410 SEAT
MATERIAL	STEEL CORROSION RESISTING STEM
MAXIMUM OPERATING TEMP	775.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNED	STEAM SINGLE RESPONSE
MOUNTING POSITION	HORIZONTAL OR VERTICAL
NOMINAL PIPE SIZE ACCOMMODATED	1.000 INCHES FIRST END
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
RENEWABLE SEAT RING TYPE	THREADED
VALVE OPERATION METHOD	MANUAL
STYLE DESIGNATOR	STRAIGHT THRU

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