JPH02122278U - - Google Patents

Info

Publication number
JPH02122278U
JPH02122278U JP3166089U JP3166089U JPH02122278U JP H02122278 U JPH02122278 U JP H02122278U JP 3166089 U JP3166089 U JP 3166089U JP 3166089 U JP3166089 U JP 3166089U JP H02122278 U JPH02122278 U JP H02122278U
Authority
JP
Japan
Prior art keywords
check valve
opening
valve seat
downstream
upstream
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
Application number
JP3166089U
Other languages
Japanese (ja)
Other versions
JPH0714714Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989031660U priority Critical patent/JPH0714714Y2/en
Publication of JPH02122278U publication Critical patent/JPH02122278U/ja
Application granted granted Critical
Publication of JPH0714714Y2 publication Critical patent/JPH0714714Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Check Valves (AREA)
  • Details Of Valves (AREA)

Description

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

第１図は本考案の第１実施例を示す断面図、第
２図は第２実施例を示す断面図である。 １，２１……水撃吸収装置付き逆止弁、２，２
２……本体、３……上流側開口、４……下流側開
口、５……流路、７……ボール、８……弁座、９
……シリンダ、１３……第２の弁座、１５……ピ
ストン。 FIG. 1 is a sectional view showing a first embodiment of the present invention, and FIG. 2 is a sectional view showing a second embodiment. 1, 21...Check valve with water hammer absorption device, 2, 2
2...Main body, 3...Upstream opening, 4...Downstream opening, 5...Flow path, 7...Ball, 8...Valve seat, 9
...Cylinder, 13...Second valve seat, 15...Piston.

Claims (1)

【実用新案登録請求の範囲】 １ 上流側開口と、下流側開口と、前記上流側開
口と下流側開口との間で連通する流路とを有する
逆止弁本体と、前記流路の途中に設けられた弁座
と、前記弁座に離着座して上流側から下流側への
流れを許し、下流側から上流側への流れを阻止す
る弁体とを含んでなる逆止弁において、前記下流
側開口と前記弁座との間において一端が前記流路
に連通し、他端が閉じられたシリンダを取り付け
、前記シリンダ内に変位可能な隔壁手段を設け、
前記シリンダの前記他端側に容積可変の空気室を
形成したことを特徴とする水撃吸収装置付き逆止
弁。 ２ 請求項１に記載の水撃吸収装置付き逆止弁に
おいて、前記シリンダは前記流路に、前記弁体が
前記弁座から離着座する時の移動方向において前
記弁座と対抗する位置において連通し、前記位置
に第２の弁座が設けられていることを特徴とする
水撃吸収装置付き逆止弁。[Claims for Utility Model Registration] 1. A check valve body having an upstream opening, a downstream opening, and a flow path communicating between the upstream opening and the downstream opening, and a check valve body having an upstream opening, a downstream opening, and a flow path communicating between the upstream opening and the downstream opening; In the check valve, the check valve includes a valve seat provided therein, and a valve body that is seated on and off the valve seat to allow flow from the upstream side to the downstream side and block flow from the downstream side to the upstream side. A cylinder having one end communicating with the flow path and the other end being closed is installed between the downstream opening and the valve seat, and a displaceable partition means is provided in the cylinder,
A check valve with a water hammer absorbing device, characterized in that an air chamber having a variable volume is formed on the other end side of the cylinder. 2. In the check valve with a water hammer absorbing device according to claim 1, the cylinder communicates with the flow path at a position opposite to the valve seat in a moving direction when the valve body moves away from and seats on the valve seat. A check valve with a water hammer absorbing device, characterized in that a second valve seat is provided at the position.
JP1989031660U 1989-03-20 1989-03-20 Check valve with water hammer absorber Expired - Lifetime JPH0714714Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989031660U JPH0714714Y2 (en) 1989-03-20 1989-03-20 Check valve with water hammer absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989031660U JPH0714714Y2 (en) 1989-03-20 1989-03-20 Check valve with water hammer absorber

Publications (2)

Publication Number Publication Date
JPH02122278U true JPH02122278U (en) 1990-10-05
JPH0714714Y2 JPH0714714Y2 (en) 1995-04-10

Family

ID=31257679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989031660U Expired - Lifetime JPH0714714Y2 (en) 1989-03-20 1989-03-20 Check valve with water hammer absorber

Country Status (1)

Country Link
JP (1) JPH0714714Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0530675U (en) * 1991-09-27 1993-04-23 栗本商事株式会社 Water hammer prevention device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63225773A (en) * 1987-03-13 1988-09-20 Tabuchi Seisakusho:Kk Check valve
JPS63145067U (en) * 1987-03-13 1988-09-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63225773A (en) * 1987-03-13 1988-09-20 Tabuchi Seisakusho:Kk Check valve
JPS63145067U (en) * 1987-03-13 1988-09-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0530675U (en) * 1991-09-27 1993-04-23 栗本商事株式会社 Water hammer prevention device

Also Published As

Publication number Publication date
JPH0714714Y2 (en) 1995-04-10

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