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Title:
MANUAL HIGH-TEMPERATURE AND HIGH-PRESSURE HYDROPHOBIC BALL VALVE HAVING SUPERIOR SEALING PROPERTY
Document Type and Number:
WIPO Patent Application WO/2019/047916
Kind Code:
A1
Abstract:
A manual high-temperature and high-pressure hydrophobic ball valve, comprising a valve body (7), a ball body (5) and a valve rod (15); the bottom of the valve rod (15) is connected to the ball body (5); a medium inlet and a medium outlet are respectively provided in two sides within the valve body (7); an inlet valve seat (4) is provided in the valve body (7) on the side of the medium inlet; an outlet valve seat (6) is provided in the valve body (7) on the side of the medium outlet; a step having a reduced diameter is provided at one end, closer to the medium outlet, of the outlet valve seat (6); a step hole, matched with the step of the outlet valve seat (6), is provided on the valve body (7); an end surface b on the step of the outlet valve seat (6) and an end surface fitting the step hole of the valve body (7) are slightly match grinded to achieve a full plane, realizing sealing; and an interference fit is formed between a cylindrical surface a on the step of the outlet valve seat (6) and the step hole of the valve body (7).

Inventors:
HU, Yong (No.197 Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
ZHU, Jiecheng (No.197 Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
YANG, Sheng (No.197 Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
DING, Huanzhu (No.197 Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
BIAN, Ming (No.197 Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
Application Number:
CN2018/104576
Publication Date:
March 14, 2019
Filing Date:
September 07, 2018
Export Citation:
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Assignee:
JIANGSU COWIN VALVE CO., LTD. (No.197 Fengxiang Road, Environmental Protection Industrial Park Tinghu Distric, Yancheng Jiangsu 1, 224051, CN)
International Classes:
F16T1/38; F16K5/06; F16K5/08; F16K5/20; F16K27/06; F16K41/02
Foreign References:
CN107448769A2017-12-08
CN207213622U2018-04-10
CN107388017A2017-11-24
CN207213623U2018-04-10
CN107781631A2018-03-09
CN207421764U2018-05-29
CN107387803A2017-11-24
CN207421377U2018-05-29
CN107388018A2017-11-24
CN207421767U2018-05-29
CN202118295U2012-01-18
CN202118294U2012-01-18
CN202118293U2012-01-18
JP2005172090A2005-06-30
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENCY CO., LTD. (7 Floor, Wanda Business BuildingNo.129 Fuyuan Street, Jianye Distric, Nanjing Jiangsu 7, 210017, CN)
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