4820-01-052-9687 COCK,DRAIN Index 4820-01-052-9689 VALVE,BALL

National Stock Number:
4820-01-052-9688

Federal Supply Class:
4820

National Item Identification Number:
010529688

Description:
VALVE,RESTRICTOR CHECK

Detail:
A VALVE HAVING AN ORIFICE IN THE POPPET, DISK, OR THE LIKE, TO PERMIT RESTRICTED FLUID FLOW WHEN THE VALVE IS SEATED. IT DOES NOT HAVE A STEM OR PROVISIONS FOR PRESSURE ADJUSTMENTS, AND IS SIMILAR TO A VALVE, CHECK WITH THE EXCEPTION OF THE ORIFICE WHICH PERMITS FLUID FLOW IN MORE THAN ONE DIRECTION.


Manufacturer Information:
37C301075P10599207GENERAL ELECTRIC COMPANY
K-1221-8-1055469ESSEX INDUSTRIES, INC.


Techincal Specification:
APERTURE DIAMETER0.016 INCHES NOMINAL
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
CONNECTION TYPETHREADED EXTERNAL TUBE 2ND END
CONNECTION STYLEFLARED (TUBE) 1ST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
MATERIALALUMINUM BODY
MATERIALIRON CAST FLOW CONTROL DEVICE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE0.563 INCHES 2ND END
NOMINAL THREAD SIZE0.750 INCHES 1ST END
RENEWABLE SEAT RING TYPETHREADED
SEAT ANGLE37.0 DEGREES 1ST END
SEAT ANGLE37.0 DEGREES 2ND END
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD DIRECTIONRIGHT-HAND 2ND END
THREAD CLASS3A 1ST END
THREAD CLASS3A 2ND END
THREAD SERIES DESIGNATORUNF 2ND END
THREAD SERIES DESIGNATORUNF 1ST END
VALVE OPERATION METHODAUTOMATIC


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