JPS62134983U - - Google Patents
Info
- Publication number
- JPS62134983U JPS62134983U JP2168886U JP2168886U JPS62134983U JP S62134983 U JPS62134983 U JP S62134983U JP 2168886 U JP2168886 U JP 2168886U JP 2168886 U JP2168886 U JP 2168886U JP S62134983 U JPS62134983 U JP S62134983U
- Authority
- JP
- Japan
- Prior art keywords
- inlet orifice
- valve body
- main valve
- pressure
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fluid-Driven Valves (AREA)
- Details Of Valves (AREA)
Description
第１図は本考案の実施例の縦断正面図、第２図
Ａは本考案の実施例における主弁のストロークと
圧力とを示す線図、第２図Ｂは入口オリフイスを
固定オリフイスとした弁についての同上線図、第
３図は従来公知のウオータハンマ緩和弁の縦断正
面図である。
１１……主弁、１２……パイロツト弁、１５…
…入口ポート、１６……出口ポート、１７……主
弁座、１８……弁体、２１……圧力作用室、２８
……第１入口オリフイス、２９……第２入口オリ
フイス、３０……入口オリフイス弁体、３３……
作動子、３５……出口オリフイス。
Fig. 1 is a longitudinal sectional front view of an embodiment of the present invention, Fig. 2A is a diagram showing the stroke and pressure of the main valve in the embodiment of the present invention, and Fig. 2B is a valve in which the inlet orifice is a fixed orifice. FIG. 3 is a longitudinal sectional front view of a conventionally known water hammer relief valve. 11...Main valve, 12...Pilot valve, 15...
...Inlet port, 16...Outlet port, 17...Main valve seat, 18...Valve body, 21...Pressure action chamber, 28
...First inlet orifice, 29...Second inlet orifice, 30...Inlet orifice valve body, 33...
Actuator, 35...exit orifice.
Claims (1)
弁座を開閉する弁体の背後に圧力作用室を区画形
成し、該圧力作用室に入口オリフイスから流入し
たパイロツト流体を、パイロツト弁で開閉される
出口オリフイスを通して流出可能とし、上記圧力
作用室の流体圧力で主弁座を開閉するパイロツト
作動の弁において、 上記入口オリフイスを、弁体上に設けて、常に
開放した状態にある小流量の第１入口オリフイス
と、これよりも十分流量が多く、かつ入口オリフ
イス弁体で開閉される第２入口オリフイスとで構
成し、 上記圧力作用室に作動子を突設して、この作動
子を、主弁の開度が全開から比較的小さくなるま
で入口オリフイス弁体に当接して第２入口オリフ
イスを開放状態に保つ長さに形成したことを特徴
とするウオータハンマ緩和弁。[Claims for Utility Model Registration] A pressure acting chamber is formed behind a valve body that opens and closes the main valve seat between the inlet port and the outlet port of the main valve, and the pilot fluid flows into the pressure acting chamber from the inlet orifice. In a pilot-operated valve in which the main valve seat is opened and closed by the fluid pressure of the pressure action chamber, the inlet orifice is provided on the valve body and is kept open at all times. It consists of a first inlet orifice with a small flow rate and a second inlet orifice with a sufficiently larger flow rate than the first inlet orifice which is opened and closed by an inlet orifice valve body, and an actuator is protruded into the pressure action chamber. , the actuator is formed to a length that keeps the second inlet orifice open by contacting the inlet orifice valve body until the opening degree of the main valve becomes relatively small from fully open. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2168886U JPH0240366Y2 (en) | 1986-02-18 | 1986-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2168886U JPH0240366Y2 (en) | 1986-02-18 | 1986-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62134983U true JPS62134983U (en) | 1987-08-25 |
| JPH0240366Y2 JPH0240366Y2 (en) | 1990-10-29 |
Family
ID=30818358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2168886U Expired JPH0240366Y2 (en) | 1986-02-18 | 1986-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240366Y2 (en) |
-
1986
- 1986-02-18 JP JP2168886U patent/JPH0240366Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0240366Y2 (en) | 1990-10-29 |