Diaphragm valve comprising a sleeve-shaped elastic diaphragm

Details Diaphragm valve comprising a sleeve-shaped elastic diaphragm Diaphragm valve comprising a sleeve-shaped elastic diaphragm

F - Mech Eng,Light,Heat,Weapons

16

K

251/12

F16K 31/26 (2006.01) F16K 7/07 (2006.01)

Patent

CA 2031143

ABSTRACT Diaphragm valve comprising a sleeve-shaped elastic dia- phragm. A diaphragm valve comprises a housing (1) provided with a supply and a discharge opening, and adapted to be inserted in a conduit. A sleeve-shaped elastic diaphragm (4) is accomodated in the housing (1), and extends between the openings. The diaphragm (4) is adapted to be loaded from the outside by a pressure fluid. In its unloaded condition, the diaphragm (4) is at a radial distance from a core body (5) located centrally therein, and the valve is open. In its fully loaded condition, a middle section (11) of the diaphragm (4) is pressed against the core body (5), and the valve is closed. The wall of the resilient diaphragm has means (10) for increasing its stiffness. These means (10) only extend from an end of the diaphragm (4) to a place near its middle section (11), thus simplifying manufacture of the diaphragm (4) and improving its sealing.

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