| 摘要 |
A pressure responsive discharge valve assembly for use in reciprocating gas compressors, includes a discharge passage valve seat (18) of frusto conical shape in which a generally complementary shaped lightweight valve member (30), preferably formed from a polymeric material, is disposed. The included angles of the valve and seat are slightly different to provide progressive closing and sealing without permanent deformation. The materials used and the relative geometry of the valve seat and member are such as to reduce clearance or reexpansion volume, provide quiet closure with good sealing; long life and high speed operation, and still have the required flow areas at low valve lifts. <IMAGE> |
