Check valve

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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Details

137/56

F16K 15/00 (2006.01) F16K 27/10 (2006.01)

Patent

CA 1201955

ABSTRACT OF THE DISCLOSURE For providing a minimum dimension and material con- sumption relative to the respective nominal width and optimal strength and flow conditions an intermediate housing part of a check valve is composed of two semispherical shell halves con- nected by beam welding along a plane extending transverse to a throughflow axis, the shell halves include hollow connecting pieces and also half rings of a cover flange formed an upper housing opening, the intersecting point of the separating plane with the throughflow axis forms a sphere center of the intermedi- ate housing part, a third part is formed by a pipe bend which has a truncated-cone-shaped chamfered end portion with which it is introduced into a respective inner conical bore from the supply side of the intermediate housing part and welded by an electron beam and which carries at its end opposite to the upper housing opening a valve seat ring, wherein the center of a spherical deflecting portion of the pipe bend at least approximately coin- cides with the center of the spherical intermediate housing part.

441949

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