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????? ?????? ???? ?????? ?? ???????? ???? ??? ??????? ????? ???? ?????? ???? ?????? ????? ?????? 9001 ?????? ???? ????? ????? ??????? ??????? ?????????. ??? ???? ??????? ?? ??? ???? ???? 3347 ?????

Plug valves are valves with cylindrical or conically-tapered "plugs" which can be rotated inside the valve body to control flow through the valve. The plugs in plug valves have one or more hollow pass

A valve having a flexible diaphragm for opening and closing the valve. The diaphragm is biased into valve-closing position by a ridge, formed in the valve body, which presses the diaphragm toward the

A metal diaphragm valve includes a valve casing and an inverted bowl-shaped metal diaphragm made of an elastic material and having a downwardly projecting collar disk made integral with the metal diap

During use, the control assembly may call for a valve closed state. In this regard, the control assembly creates a pressure above the diaphragm to position the diaphragm in a sealed arrangement with t

A valve body having upper and lower sections, said lower section having an outlet chamber and an inlet for water extending into said outlet chamber, and terminating in an annular valve seat, said uppe

The above object of the present invention is achieved by a metal diaphragm valve constructed as follows. The metal diaphragm valve comprises a valve cage, a metallic valve seat integral with the valve