Title:
DBB FORCED SEAL VALVE AND OPERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/052018
Kind Code:
A1
Abstract:
Disclosed are a DBB forced seal valve and an operation device. The DBB forced seal valve comprises a body (10), a seat (20), a valve core (40) arranged in the body (10), an upper disk driving member (50) and a lower disk driving member (60) arranged in the body (10) and positioned on two sides of the valve core (40), and sealing disks (70) arranged between the seat (20), the upper disk driving member (50) and the lower disk driving member (60), wherein the upper disk driving member (50) and the lower disk driving member (60) can move along the rotation axis of the valve core (40), and the upper disk driving member (50) and the lower disk driving member (60) drive the sealing disks (70) to abut against or to be separated from the seat (20).
Inventors:
LIU ZHIGANG (CN)
CHEN JIMENG (CN)
LIU XIAOQI (CN)
CHEN JIMENG (CN)
LIU XIAOQI (CN)
Application Number:
PCT/CN2020/105504
Publication Date:
March 25, 2021
Filing Date:
July 29, 2020
Export Citation:
Assignee:
ZIBO VOTAISI PETROCHEMICAL EQUIPMENT CO LTD (CN)
International Classes:
F16K5/20; F16K5/06; F16K31/44
Foreign References:
| CN110594442A | 2019-12-20 | |||
| CN103742666A | 2014-04-23 | |||
| CN108361405A | 2018-08-03 | |||
| CN207261704U | 2018-04-20 | |||
| JPH11141701A | 1999-05-28 |
Other References:
See also references of EP 4033129A4
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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