JPH0471884U - - Google Patents

Info

Publication number
JPH0471884U
JPH0471884U JP11328790U JP11328790U JPH0471884U JP H0471884 U JPH0471884 U JP H0471884U JP 11328790 U JP11328790 U JP 11328790U JP 11328790 U JP11328790 U JP 11328790U JP H0471884 U JPH0471884 U JP H0471884U
Authority
JP
Japan
Prior art keywords
valve
bellows seal
valve body
drive shaft
leak
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
Application number
JP11328790U
Other languages
Japanese (ja)
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 JP11328790U priority Critical patent/JPH0471884U/ja
Publication of JPH0471884U publication Critical patent/JPH0471884U/ja
Pending legal-status Critical Current

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  • Details Of Valves (AREA)

Description

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

第１図は本考案による無漏洩弁の一実施例を示
す断面図、第２図は第１図の一点鎖線で囲つた
部の拡大図、第３図及び第４図は従来の２つの異
なる無漏洩弁を示す断面図である。 １……弁箱、１ａ，１ｂ……流路、２……弁座
、３……弁体、４……駆動軸、１２……軸受、１
３……下部ベローズシール、１４……上部ベロー
ズシール、１５……密閉空間、１６……圧力セン
サ。 Fig. 1 is a sectional view showing one embodiment of the non-leak valve according to the present invention, Fig. 2 is an enlarged view of the part surrounded by the dashed line in Fig. 1, and Figs. 3 and 4 are two different conventional valves. It is a sectional view showing a no-leak valve. 1... Valve box, 1a, 1b... Channel, 2... Valve seat, 3... Valve body, 4... Drive shaft, 12... Bearing, 1
3... Lower bellows seal, 14... Upper bellows seal, 15... Sealed space, 16... Pressure sensor.

Claims (1)

【実用新案登録請求の範囲】 １ 流体が流れる弁箱と、該弁箱を流れる流体の
流れを制御する弁体と、該弁体に一端が固定され
前記弁体を駆動する駆動軸とを包含し、該駆動軸
とこの駆動軸を支承する前記弁箱との間の隙間を
上部ベローズシールと下部ベローズシールとで気
密に覆つたことを特徴とする無漏洩弁。 ２ 請求項１記載の無漏洩弁において、前記上部
ベローズシールと下部ベローズシールとで気密に
覆われた隙間の部分に圧力センサを配置したこと
を特徴とする無漏洩弁。[Claims for Utility Model Registration] 1 Includes a valve box through which fluid flows, a valve body that controls the flow of fluid flowing through the valve body, and a drive shaft having one end fixed to the valve body and driving the valve body. A leak-free valve characterized in that a gap between the drive shaft and the valve box supporting the drive shaft is airtightly covered with an upper bellows seal and a lower bellows seal. 2. The leak-free valve according to claim 1, wherein a pressure sensor is disposed in a gap airtightly covered by the upper bellows seal and the lower bellows seal.
JP11328790U 1990-10-29 1990-10-29 Pending JPH0471884U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11328790U JPH0471884U (en) 1990-10-29 1990-10-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11328790U JPH0471884U (en) 1990-10-29 1990-10-29

Publications (1)

Publication Number Publication Date
JPH0471884U true JPH0471884U (en) 1992-06-25

Family

ID=31860853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11328790U Pending JPH0471884U (en) 1990-10-29 1990-10-29

Country Status (1)

Country Link
JP (1) JPH0471884U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013242909A (en) * 2008-02-29 2013-12-05 Fisher Controls Internatl Llc Diagnostic method for detecting failure of component in control valve
JP2015004461A (en) * 2013-06-19 2015-01-08 日本特殊陶業株式会社 Glow plug with combustion pressure sensor
JP2021038775A (en) * 2019-09-02 2021-03-11 アドバンス電気工業株式会社 Diaphragm valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013242909A (en) * 2008-02-29 2013-12-05 Fisher Controls Internatl Llc Diagnostic method for detecting failure of component in control valve
JP2015004461A (en) * 2013-06-19 2015-01-08 日本特殊陶業株式会社 Glow plug with combustion pressure sensor
JP2021038775A (en) * 2019-09-02 2021-03-11 アドバンス電気工業株式会社 Diaphragm valve

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