Self-contained check valve module
作者： Raymond E. Cellemme , Julie C. Howell
DOI:
关键词:
摘要: A check valve module for use in a backflow preventer. The includes housing, element positioned the housing and moveable between dosed position an open position, spring retainer. retainer at least one outwardly extending projection adapted to be received secured recess on end of housing. is biasing towards closed locking where recess.
lens.org 参考文章(21)
Stevenson Robert, Hydraulic pressure relief valve ,(1952)
Kemp E Falkner, Backwash flow control valve ,(2002)
R. A. Crawford, Unitized check valve ,(1986)
Gennady Arov, David Stein, Y-pattern piston check valve, piston valve assembly for a Y-pattern piston check valve, and method ,(2005)
Timothy D. Price, Robert V. Funderburk, Danny S. Meyer, Greg L. Britt, Swing check backflow preventer ,(2000)
Edwin J. Hunter, Backflow preventing valve construction ,(1971)
Eldon Hostetler, Keith Sheets, Flush apparatus for watering systems ,(1991)
Samuel S. Wu, Ronald Trammell, Unitized spherical profile check valve with replaceable sealing element ,(2000)
Willard E. Kemp, Inline check valve ,(2000)
Robert W. Muddiman, Fluid Check Valve with Replaceable Valve Seat and Flapper Assembly ,(1993)