JPH0378307U

JPH0378307U -

Info

Publication number: JPH0378307U
Application number: JP13708289U
Authority: JP
Priority date: 1989-11-27
Filing date: 1989-11-27
Publication date: 1991-08-08

Description

[Brief explanation of the drawing]

図は本考案の一実施例を示す減圧弁装置の系統
図である。１…減圧弁装置、２…給水管路、３，４…連通
管、１０ａ，１０ｂ…主弁、１３ａ，１３ｂ…１
次側弁室、１４ａ，１４ｂ…２次側弁室、１６ａ
，１６ｂ…主弁体、１７ａ，１７ｂ…圧力室、２
１ａ，２１ｂ…１次側パイロツト配管、２３ａ，
２３ｂ…パイロツト弁、２４ａ，２４ｂ…２次側
パイロツト配管、２７ａ，２７ｂ…弁体、２８ａ
，２８ｂ…調整スプリグ、Ａ…大口径の減圧弁、
Ｂ…小口径の減圧弁。 The figure is a system diagram of a pressure reducing valve device showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Pressure reducing valve device, 2... Water supply pipe line, 3, 4... Communication pipe, 10a, 10b... Main valve, 13a, 13b... 1
Next side valve chamber, 14a, 14b...Secondary side valve chamber, 16a
, 16b...Main valve body, 17a, 17b...Pressure chamber, 2
1a, 21b...Primary side pilot piping, 23a,
23b...Pilot valve, 24a, 24b...Secondary side pilot piping, 27a, 27b...Valve body, 28a
, 28b...adjustment spring, A...large diameter pressure reducing valve,
B...Small diameter pressure reducing valve.

Claims

[Scope of utility model registration request]

In the pressure reducing valve device, the pressure reducing valve is provided in the middle of the liquid sending pipe and is equipped with a pressure reducing valve that adjusts the opening degree of the main valve element by opening and closing a pilot valve that opens and closes depending on the pressure on the secondary side of the pipe. A large diameter pressure reducing valve in the liquid pipe line,
A small diameter pressure reducing valve is arranged in parallel, and the set pressure of the pilot valve of the large diameter pressure reducing valve is
A pressure reducing valve device characterized in that the pressure is lower than a set pressure of a pilot valve of the small diameter pressure reducing valve.