JPH0350215U - - Google Patents
Info
- Publication number
- JPH0350215U JPH0350215U JP10775889U JP10775889U JPH0350215U JP H0350215 U JPH0350215 U JP H0350215U JP 10775889 U JP10775889 U JP 10775889U JP 10775889 U JP10775889 U JP 10775889U JP H0350215 U JPH0350215 U JP H0350215U
- Authority
- JP
- Japan
- Prior art keywords
- pilot valve
- pilot
- guide hole
- stem guide
- valve
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Control Of Fluid Pressure (AREA)
Description
第１図は本考案の実施例を示すパイロツト弁部
の断面図、第２図は他の実施例を示すパイロツト
弁部の断面図、第３図は従来の減圧弁の断面図で
ある。
１０……本体、１２……入口、１６……出口、
２０……ピストン、２６……パイロツト弁部、２
８……ダイヤフラム、６０……パイロツトステム
、４６……ステムガイド、６２……パイロツト弁
体、７０……ダイヤフラム、７２ａ，ｂ，７６…
…シール部材。
FIG. 1 is a sectional view of a pilot valve section showing an embodiment of the present invention, FIG. 2 is a sectional view of a pilot valve section showing another embodiment, and FIG. 3 is a sectional view of a conventional pressure reducing valve. 10...main body, 12...inlet, 16...exit,
20...Piston, 26...Pilot valve section, 2
8...Diaphragm, 60...Pilot stem, 46...Stem guide, 62...Pilot valve body, 70...Diaphragm, 72a, b, 76...
...Seal member.
Claims (1)
路の間にパイロツト弁を配置し、上面に圧力設定
ばねの弾性力を下面に二次側圧力を作用させたダ
イヤフラムの撓みでパイロツト弁を駆動し、パイ
ロツト弁の開閉によりピストンに作用する流体圧
力を制御して、そのピストンの駆動により主弁口
を開閉するパイロツト式減圧弁に於いて、パイロ
ツト弁部はステムガイドに上下方向に貫通したス
テムガイド孔を開け、ステムガイド孔の下端にパ
イロツト弁口を形成し、その下方からパイロツト
弁口を開閉するパイロツト弁体を配置し、パイロ
ツト弁体を操作するためのパイロツトステムを前
記ステムガイド孔へ摺動可能に挿入し、パイロツ
ト弁口から流入する流体がパイロツトステムとス
テムガイド孔の隙間への侵入を阻止するための封
止部材をステムガイド孔の途上に設けたことを特
徴とする減圧弁のパイロツト弁構造。 A pilot valve is placed between the passage leading to the primary side and the passage leading to the upper surface of the piston, and the pilot valve is driven by the deflection of the diaphragm, which has the elastic force of a pressure setting spring applied to the upper surface and the secondary side pressure applied to the lower surface. In a pilot type pressure reducing valve that opens and closes the main valve port by controlling the fluid pressure acting on the piston by opening and closing the valve, the pilot valve part has a stem guide hole that penetrates the stem guide in the vertical direction. A pilot valve opening is formed at the lower end of the stem guide hole, a pilot valve element for opening and closing the pilot valve opening is arranged from below, and a pilot stem for operating the pilot valve element can be slid into the stem guide hole. A pilot valve of a pressure reducing valve, characterized in that a sealing member is provided in the middle of a stem guide hole to prevent fluid flowing in from the pilot valve port from entering the gap between the pilot stem and the stem guide hole. structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10775889U JPH0350215U (en) | 1989-09-14 | 1989-09-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10775889U JPH0350215U (en) | 1989-09-14 | 1989-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0350215U true JPH0350215U (en) | 1991-05-16 |
Family
ID=31656436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10775889U Pending JPH0350215U (en) | 1989-09-14 | 1989-09-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350215U (en) |
-
1989
- 1989-09-14 JP JP10775889U patent/JPH0350215U/ja active Pending