JPS5854710U

JPS5854710U - Pressure reducing valve

Info

Publication number: JPS5854710U
Application number: JP15082181U
Authority: JP
Inventors: 秀治足立; 佐藤　英隆
Original assignee: 株式会社ノーリツ; 株式会社ヨシタケ製作所
Priority date: 1981-10-08
Filing date: 1981-10-08
Publication date: 1983-04-14
Also published as: JPS638968Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図は本考案の一実施例を示すものにして、第１図は減圧
弁の配管図、第２図は本考案に係る減圧弁の断面図、第
３図は要部の拡大断面図、第４図は同上作動時の断面図
、第５図は第３図のＡ−Ａ断面図である。４・・・・・・−次側圧力室、６・・・・・・二次側圧
力室、８・・・・・・弁口、９・・・・・・ダイヤフラ
ム、１２・・・・・・調節ばね、１３・・・・・・弁棒
、１６・・・・・・弁体、２０・・・・・・連通路、・
２１・・・・・・逃し弁、２５・・・・・・弁体キャッ
プ、２７・・・・・・調圧ばね、２８・・・・・・吐水
口、２９・・曲木抜キャップ、３０・・・・・・連通孔
、３２・・・・・・水抜弁、３５・・・・・・閉鎖ばね
。第４図、第３図The drawings show one embodiment of the present invention, in which Fig. 1 is a piping diagram of a pressure reducing valve, Fig. 2 is a sectional view of the pressure reducing valve according to the invention, Fig. 3 is an enlarged sectional view of the main parts, and Fig. 3 is an enlarged sectional view of the main parts. FIG. 4 is a cross-sectional view when the same as above is in operation, and FIG. 5 is a cross-sectional view taken along the line AA in FIG. 3. 4...-Next pressure chamber, 6...Secondary pressure chamber, 8...Valve port, 9...Diaphragm, 12... ... Adjustment spring, 13 ... Valve stem, 16 ... Valve body, 20 ... Communication path, ...
21... Relief valve, 25... Valve body cap, 27... Pressure regulating spring, 28... Spout, 29... Bentwood removal cap, 30...Communication hole, 32...Drain valve, 35...Closing spring. Figure 4, Figure 3

Claims

[Scope of utility model registration request]

A valve port is provided to communicate the primary pressure chamber and the secondary pressure chamber,
A valve element that opens and closes the valve port is attached to the lower end of a valve rod whose upper end is attached to a diaphragm that is displaced in response to pressure fluctuations in the secondary pressure chamber, and an adjustment spring that presses the valve element to open the valve is attached to the diaphragm side. In a pressure reducing valve, in which a pressure regulating spring is press-fitted into the lower end of the valve stem to pressurize the valve body to close the valve, one end opens into the primary pressure chamber at the axis of the valve stem, and the other end A communication passage is formed in the lower end surface of the rod to communicate the primary pressure chamber and the secondary pressure chamber, and a relief valve for closing the communication passage is interposed between the lower end of the valve rod and the pressure regulating spring. A pressure reducing device characterized in that a communication hole is loosely fitted to the lower end of the valve stem, and a communication hole is provided to communicate the secondary side pressure chamber to the outside, and a drain valve that opens and closes the communication hole is elastically pressed to close by a closing spring. valve.