JPS59182720U - valve device - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を示す断面図、第２図、第３図
、第４図は動作説明図、第５図は吐出圧力の変化を示す
表図、第６図は使用例の説明図であ　　−る。 １は弁本体、３０は入口ポート、３１は出自ポート、３
３は圧力導入ポート。Fig. 1 is a sectional view showing an embodiment of the present invention, Figs. 2, 3, and 4 are explanatory diagrams of operation, Fig. 5 is a table showing changes in discharge pressure, and Fig. 6 is an example of use. This is an explanatory diagram. 1 is the valve body, 30 is the inlet port, 31 is the origin port, 3
3 is the pressure introduction port.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 入口ポート３０と出口ポート３１とを備えた弁本体１に
、入口ポート３０と出口ポート３１との間に設けられか
つ圧力導入ポート３３に導入されるフィードバック圧力
が第１の一定圧力以上となった時に作動する第１の減圧
弁を設けると共に、前記弁本体１に、フィードバック圧
力が第１の一定圧力よりも高い第２の一定圧力以上とな
ると作動して第１の減圧弁の特性を変化させる第２の減
圧弁を設けたことを特徴とする弁装置。In the valve body 1 equipped with an inlet port 30 and an outlet port 31, the feedback pressure introduced into the pressure introduction port 33 provided between the inlet port 30 and the outlet port 31 becomes equal to or higher than a first constant pressure. A first pressure reducing valve is provided which operates when the valve body 1 is operated, and when the feedback pressure reaches a second constant pressure higher than the first constant pressure, the valve body 1 operates to change the characteristics of the first pressure reducing valve. A valve device comprising a second pressure reducing valve.