Title:
END STOPPING RELIEF VALVE
Document Type and Number:
Japanese Patent JP2612519
Kind Code:
B2
Abstract:
PURPOSE: To operate an end stopping relief valve by means of opening or closing an ON-OFF valve such as a faucet or the like to be installed in an intermediate water faucet or the like being connected downstream, not using another ON-OFF valve controlled for opening or closing by electric power.
CONSTITUTION: A main valve 2, a relief valve V and a check valve 3 are assembled in this order to a valve box 1 provided with a water inlet 10 and a water outlet 11 from the upstream. In succession, a differential pressure takeout mechanism W, taking out a pressure differential between primary pressure and down stream pressure from the check valve 3 is assembled thereto, and the main valve 2 is controlled for its opening or closing by a variation in the differential pressure the differential pressure takeout mechanism W takes out.
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Inventors:
Mitsunori Fukuda
Application Number:
JP25959291A
Publication Date:
May 21, 1997
Filing Date:
September 11, 1991
Export Citation:
Assignee:
NTC Industrial Co., Ltd.
International Classes:
F16K15/06; F16K17/04; F16K17/22; F16K24/06; F24H1/46; (IPC1-7): F16K17/22; F16K17/04
Attorney, Agent or Firm:
Kazuro Shinseki