JPS6039112U

JPS6039112U - Pilot operated pressure reducing valve

Info

Publication number: JPS6039112U
Application number: JP12726283U
Authority: JP
Inventors: 満田　徹
Original assignee: フシマン株式会社
Priority date: 1983-08-19
Filing date: 1983-08-19
Publication date: 1985-03-18

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 drawings]

第１図は本考案によるパイロット作動式減圧弁の一実施
例の縦断面図、第２図は上記実施例のパイロット弁の開
弁状態を示す要部断面図、第３図−は他の実施例のパイ
ロット弁の要部断面図、第４図は上記他の実施例のパイ
ロット弁の補助案内筒の斜視図、第５図は上記他の実施
例のパイロット弁の弁体組立体を組付けようとする状態
を示す要部断面図である。１・・・弁箱、２・・・主弁座、３・・・下部蓋、４・
・・主弁　。体、５・・・バネ、６・・・シリンダ、７・・・ピスト
ン、８・・・上部蓋、９・・・弁座、１０・・・真球状
弁体、１１・・・弁蓋、１２・・・バネ、１３・・・副
弁蓋、１４・・・バネ保護筒、１５・・・ダイアフラム
、１６・・・弁棒、１７・・・バネ受、１８・・・調節
ネジ、１９・・・バネ受、２０・・・、　調節バネ、２
１・・・ロックナツト、２２・・・流入圧力導入路、２
３・・・流入圧力供給路、２４・・・流出圧力導入路。Fig. 1 is a longitudinal sectional view of one embodiment of a pilot-operated pressure reducing valve according to the present invention, Fig. 2 is a sectional view of the main part showing the pilot valve of the above embodiment in the open state, and Fig. 3- is another embodiment. FIG. 4 is a perspective view of the auxiliary guide tube of the pilot valve of the above other embodiment, and FIG. 5 is a sectional view of the main part of the pilot valve of the above example, and FIG. 5 is an assembled valve body assembly of the pilot valve of the above other embodiment. FIG. 1... Valve box, 2... Main valve seat, 3... Lower lid, 4...
...Main statement. Body, 5... Spring, 6... Cylinder, 7... Piston, 8... Upper cover, 9... Valve seat, 10... True spherical valve body, 11... Valve cover, 12... Spring, 13... Sub-valve cover, 14... Spring protection tube, 15... Diaphragm, 16... Valve stem, 17... Spring holder, 18... Adjustment screw, 19 ...Spring holder, 20..., Adjustment spring, 2
1... Lock nut, 22... Inflow pressure introduction path, 2
3... Inflow pressure supply path, 24... Outflow pressure introduction path.

Claims

[Scope of utility model registration request]

In a pilot-operated pressure reducing valve that is configured such that the axial direction of the pilot valve attached to the upper lid of the main valve is orthogonal to the axial direction of the main valve, the valve body assembly of the pilot valve is inserted into the center hole of the pilot valve seat. a true spherical valve body that can be seated on the periphery;
It is integrated or attached to the pilot valve lid, and when assembled, the inner diameter is slightly larger than the diameter of the true spherical valve body, and the gap between the end face and the pilot valve seat is larger than the diameter of the true spherical valve body. A pilot-operated pressure reducing device comprising a guide cylinder having a narrowing length and housing therein the true spherical valve body and a spring that presses the true spherical valve body in a seating direction. valve.