Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/026569
Kind Code:
A1
Abstract:
This drain trap (1) comprises: a casing (10) having a fluid passage provided partway therealong with the upstream end (33a) (discharge port) of a valve hole (33); a first valve (31) which opens and closes the upstream end (33a) of the valve hole (33); a cleaning member (70) which enters the upstream end (33a) of the valve hole (33) and removes foreign bodies from the upstream end (33a); and a solenoid (63) having a plunger (65) which, by being displaced, makes the cleaning member (70) enter the upstream end (33a) of the valve hole (33).
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| JPH11141708 | DEPRESSURIZATION TYPE REVERSE FLOW PREVENTING DRAIN VALVE |
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Inventors:
ASADA TETSUO (JP)
Application Number:
PCT/JP2019/020797
Publication Date:
February 06, 2020
Filing Date:
May 27, 2019
Export Citation:
Assignee:
TLV CO LTD (JP)
International Classes:
F16K51/00; F16T1/22
Foreign References:
| JPS63201298U | 1988-12-26 | |||
| JPS5853976U | 1983-04-12 | |||
| JP2007303631A | 2007-11-22 | |||
| JP2015229979A | 2015-12-21 |
Attorney, Agent or Firm:
TERAZONO Kenichi et al. (JP)
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