JPS63108466U

JPS63108466U -

Info

Publication number: JPS63108466U
Application number: JP20295286U
Authority: JP
Priority date: 1986-12-27
Filing date: 1986-12-27
Publication date: 1988-07-13
Also published as: JPH0327106Y2

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図は、本
考案の縦断面図、第２図は、同要部拡大図、第３
図は、特性比較図、第４図は、従来品の縦断面図
、である。図中、１はフラツシユバルブ本体、２は流入口
、３は流出口、４は主弁座、５は開口、８は受圧
部（ピストン）、９は主弁体、１１は圧力室、２
０は通路、３０はストレーナー、５０は主弁、６
０はリリーフ弁、７０は制御弁、を示す。 The drawings show one embodiment of the present invention; Fig. 1 is a longitudinal sectional view of the invention, Fig. 2 is an enlarged view of the same main part, and Fig. 3 is an enlarged view of the same main part.
The figure is a characteristic comparison diagram, and FIG. 4 is a longitudinal cross-sectional view of a conventional product. In the figure, 1 is the flash valve body, 2 is the inlet, 3 is the outlet, 4 is the main valve seat, 5 is the opening, 8 is the pressure receiving part (piston), 9 is the main valve body, 11 is the pressure chamber, 2
0 is a passage, 30 is a strainer, 50 is a main valve, 6
0 indicates a relief valve, and 70 indicates a control valve.

Claims

[Scope of utility model registration request]

A pressure chamber is formed behind the main valve by a pressure receiving member that includes a flash valve body having an inlet and an outlet, and a main valve body that corresponds to the main valve seat provided in the main body and constitutes the main valve. , a relief valve that connects the pressure chamber and the outlet side and discharges the water in the pressure chamber to the outlet side; a relief valve that is provided between the pressure chamber and the inlet side and closes halfway when the main valve is closed; A control valve that operates, a passage bored in the center of the control valve that constantly communicates the pressure chamber and the inlet side, and a passage bored in the center of the control valve between the inlet side and the control valve (and a passage bored in the control valve). The pressure chamber is configured to communicate with the pressure chamber through the passage bored in the center of the control valve and the control valve until the middle of the closing operation of the main valve, and thereafter only through the passage. A flash valve characterized in that the main valve closes quickly at first and gradually thereafter.