4820-99-811-8451, VALVE,STOP-CHECK

5998-99-811-8445 ELECTRONIC COMPONENTS ASSEMBLY

National Stock Number:
4820-99-811-8451

Federal Supply Class:
4820

National Item Identification Number:
998118451

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:

Y1670/1	K5206	DMI YOUNG & CUNNINGHAM LTD
Y1670/1	K7735	YOUNG & CUNNINGHAM GLASGOW LTD
Y1670/1/A3	K5206	DMI YOUNG & CUNNINGHAM LTD
Y1670/1/A3	K7735	YOUNG & CUNNINGHAM GLASGOW LTD

Techincal Specification:

BONNET TYPE	INSIDE SCREW
CONNECTION TYPE	FLANGE ALL ENDS
FACE TO FACE DISTANCE	193.00 MILLIMETERS
FEATURES PROVIDED	BONNET PACKING
FLANGE FACE DESIGN	PLAIN ALL ENDS
FLANGE SHAPE	ROUND ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A2000 (USA) ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B138-675 (USA) ASSN STD SINGLE MATERIAL RESPONSE STEM
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
MATERIAL	COPPER ALLOY STEM
MATERIAL	COPPER ALLOY BODY
MATERIAL	RUBBER FLOW CONTROL DEVICE
NOMINAL OUTSIDE DIAMETER	165.00 MILLIMETERS ALL ENDS
NOMINAL THICKNESS	11.00 MILLIMETERS ALL ENDS
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	2 IN. VALVE SIZE (50 MM BORE)
SPECIAL FEATURES	C/W HANDWHEEL & 1 POSITION INDICATOR
VALVE SIZE	2.000 INCHES
STYLE DESIGNATOR	STRAIGHT THRU FLANGED ENDS

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