Title:
末端試験弁一体型排水弁、流水検知装置及びスプリンクラー消火設備
Document Type and Number:
Japanese Patent JP7428563
Kind Code:
B2
Abstract:
To provide an end test valve-integrated drainage valve that can visually verify each running water of a check valve, a drainage valve and an end test valve.SOLUTION: An end test valve-integrated drainage valve 43 includes: a metal valve body 431 where a first flow path provided with a first inlet 431a, a second inlet 431b and an outlet 431c, and extending from the first inlet 431a to one direction, and a second flow path extending from the second inlet 431b to the other direction intersecting with the first flow path, are merged just before the outlet 431c; a drainage valve (433) provided in the first flow path of the valve body 431 in an opening/closing manner; and an end test valve (434) provided in the second flow path of the valve body 431 in the opening/closing manner. A transparent observation hole 432 for visually recognizing a running water state in the valve body 431 is provided in the wall part of a place where the first flow path and the second flow path are merged in the valve body 431.SELECTED DRAWING: Figure 5
Inventors:
Eiichi Toyama
Oh Joo Hwan
Oh Joo Hwan
Application Number:
JP2020053890A
Publication Date:
February 06, 2024
Filing Date:
March 25, 2020
Export Citation:
Assignee:
Nippon Dry Chemical Co., Ltd.
International Classes:
F16K37/00; A62C35/68; A62C37/50; F16K11/22
Domestic Patent References:
| JP51105299U | ||||
| JP471147B2 | ||||
| JP9122266A |
Foreign References:
| US4655078 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tsukuni
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