National Item Identification Number
00-639-9943
006399943
4820-00-639-9943
4820-00-639-9943
National Stock Number
Item Name
VALVE,WEIGHTED CONTROL,PISTON
Federal Supply Class
4820
Description
A valve consisting of a ported, dead weighted, hollow piston which moves vertically across the inlet passage within the valve body. Changes in the pressure controlled position of the piston vary the effective area of the ports exposed to the inlet flow in such a manner as to maintain a constant outlet line pressure. It has no seats or disk. For dead weight loaded pressure regulating valve of seat and disk construction, see also VALVE, REGULATING, FLUID PRESSURE.
Commercial and Government Entity Code (Supplier Data)
24804
GIBBS & COX INC
DIV FINANCE & ADMINISTRATION
3 W 35TH ST
NEW YORK
NY
10001
703-416-3620
Reference Numbers (Part Numbers)
DD692S4810-49ALT3
692-4810-49
Required Categories
MATERIAL
MEDIA FOR WHICH DESIGNED
MAXIMUM OPERATING TEMP
BOLT HOLE QUANTITY;
Required Description
STEEL BODY
STEEL CORROSION RESISTING FLOW CONTROL DEVICE
STEAM 2ND RESPONSE
4