Your location is:Products >> Electric power application industry >> Vacuum butterfly valve
Return to superior

Vacuum butterfly valve

Product Overview

Vacuum butterfly valve is designed and manufactured by welding the middle line butterfly plate and short structure steel plate. It has the advantages of compact structure, light weight, easy installation, small flow resistance, large flow capacity, avoiding the influence of high temperature expansion and easy operation. There is no connecting rod and bolt in the body, so it works reliably and has long service life. It can be installed in multiple directions and is not affected by the flow direction of medium.

Structural characteristics

Manual high vacuum butterfly valve is used to connect or cut off the air flow in vacuum pipeline. The valve has locking function, stable rotation and reliable sealing. Suitable working medium is air and non corrosive gas.

Execution standard

Design specification: GB/T12238
Flange standard: GB/T6070
Structure length: GB/T12221
Tests and inspection: GB/T13927

Performance parameter

Product specification: DN50~2000mm
Pressure class: PN0.6~ 1.6mpa
Applicable temperature: -25℃~80℃ for nitrile rubber, -30℃~150℃ for fluorine rubber
Main material: stainless steel or carbon steel nickel plating

Product Dimensions

Model DN φD φB H A L n-φc Flange standard
GI-25 25 70 55 64 22 104 4-φ7 GB/T6070
GI-32 32 90 71 74 22 104 4-φ9 GB/T6070
GI-40 40 100 80 80 22 116 4-φ9 GB/T6070
GI-50 50 110 90 85 22 116 4-φ9 GB/T6070
GI-63 63 130 110 96 26 132 4-φ9 GB/T6070
GI-80 80 145 125 108 30 154 8-φ9 GB/T6070
GI-100 100 165 145 118 30 154 8-φ9 GB/T6070
GI-125 125 200 175 138 35 197 8-φ12 GB/T6070
GI-150 150 225 200 152 35 197 8-φ12 GB/T6070
GI-200 200 285 260 190 40 242 12-φ12 GB/T6070
GI-250 250 335 310 221 45 330 12-φ12 GB/T6070
GI-300 300 425 395 270 55 330 12-φ14 GB/T6070
GI-400 400 510 480 317 60 435 16-φ14 GB/T6070
Previous:Ball valve

Privacy policy

This privacy Statement applies to all users of the Site and the services provided by the Site.We solemnly promise to respect and protect users' personal privacy. We will not publish any information related to users without users' authorization, unless required by law or procedure.We will regularly review privacy protection measures, track security technology trends, and update technology and management measures.< br/> 1. Users shall provide necessary personal information, usually including name, gender, contact number and E-mail address, when using the services of leaving messages, consulting and interactive questions on the website of China National Industry Holding Group Co., LTD.We will keep the user information and relevant requirements confidential management.
2. We will adopt technical and management measures to protect users' privacy.When sensitive information is provided to us by users, we will take reasonable steps to protect sensitive information of users, and we will also take reasonable security measures to protect personal information that has been stored.This website will strictly manage and protect the data provided by users, and will use the corresponding technology to prevent the loss, theft or change of users' personal data.
3. The website of China National Engineering Holding Group Co., Ltd. will strictly protect users' personal privacy and promise not to arbitrarily disclose users' personal information without users' consent.However, under the following exceptions, the aforementioned promises will not be warranted to disclose the user's relevant information.These circumstances include, but are not limited to: (1) when the user behavior on this site violates the measures for the administration of international networking of computer information network security protection, the measures for the administration of Internet information service, the "Internet electronic bulletin service management regulations" and "the standing committee of the National People's Congress on maintaining Internet security decision", or may damage or interfere with the rights and interests of other users or cause others to suffer damage, disclosure of personal information is to identify the user, contact, or to take legal action when necessary action.
(2) Personal information that must be disclosed or made public as required by laws and regulations.
(3) When judicial organs or other authorized organs perform official duties according to law and require websites to disclose specific personal data.
4. The website of China National Engineering Holding Group Co., Ltd. has taken complete technical measures to protect the integrity and confidentiality of users' information.However, the website of China National Industry Holding Group Co., Ltd. shall not bear any legal liability for the damage, disclosure and loss of user information caused by force majeure or special external forces such as computer virus infection or hacker attack, but we will take necessary measures to reduce the loss of users.
5. At any time when users think that the website of China National Industry Holding Group Co., Ltd. does not comply with this statement, please inform us by E-mail to GuoGong@GFGFV.com and we will make every effort to take corresponding improvement measures.

Legal notices

I. GUOGONG HOLDING GROUP CO.,LTD. independently owns or co-owns with relevant content providers the copyright of relevant content on this website.Any person who intends to use the text, pictures, video/audio and other information on the Website shall contact the website in advance and obtain explicit written permission.Without permission, any media, websites, business organizations and individuals should not be allowed to copy the contents of this website or work in the countries holding group co., LTD., belongs to a mirror on the server, and may not be all or part of this site page, make commercial links and their content, and shall not distort and tamper with the content on this web site is.
Second, all pages in the official website of creative format framework, animation, interactive design, structure, color, text, ICONS and other appropriate combination, in the form of digital published in digital form and fixed on the computer's hard drive space, contact by the public with the help of a network host, give a person with visual aesthetic feeling, this is not a simple arrangement of facts, has the originality.The above description is protected by this copyright notice.
Iii. We have tried our best to obtain permission from the copyright owner for the information reproduced on this website. If there is any omission, please contact this website.
Iv. The views expressed or implied in the relevant articles and materials reproduced on this website do not represent that of China National Industry Holding Group Co., LTD.
V. This website cannot control or guarantee the accuracy, timeliness and completeness of the information of each website linked to it.
The right to modify and update the website Statement belongs to the website of China National Industry Holding Group Co., LTD.
+86 0578-2626111
qrCode