Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
INTEGRATED MULTI-SEAT SPHERICAL ALL-WELDED BALL VALVE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/202356
Kind Code:
A1
Abstract:
An integrated multi-seat spherical all-welded ball valve comprises a left valve body (1), a right valve body (5), a valve stem (4), a ball (12) and a valve seat (7). An inner end surface of the left valve body (1) and an inner end surface of the right valve body (5) are butt-welded and connected to form a valve body (15) of the ball valve. The ball (12) is disposed in the valve body (15). The valve stem (4) runs through the top of the valve body (15), and is connected to the ball (12). The valve seat (7) is disposed between the valve body (15) and the ball (12). Two or three valve seats (7) are disposed both upstream and downstream relative to the ball valve. Multiple valve seats are disposed both upstream and downstream relative to the integrated multi-seat spherical all-welded ball valve, and the valve seats are independent of each other, thereby improving valve sealing reliability. A manufacturing method of the integrated multi-seat spherical all-welded ball valve is also provided.

Inventors:
LIU, Zili (Industry Road, Jinyuan Town Dayi Count, Chengdu Sichuan 0, 611330, CN)
ZENG, Pinqi (Industry Road, Jinyuan Town Dayi Count, Chengdu Sichuan 0, 611330, CN)
ZENG, Heyou (Industry Road, Jinyuan Town Dayi Count, Chengdu Sichuan 0, 611330, CN)
XU, Danhong (Industry Road, Jinyuan Town Dayi Count, Chengdu Sichuan 0, 611330, CN)
Application Number:
CN2017/085851
Publication Date:
November 30, 2017
Filing Date:
May 25, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CHENGDU CHENGGAO VALVE CO., LTD. (Industry Road, Jinyuan Town Dayi Count, Chengdu Sichuan 0, 611330, CN)
International Classes:
F16K5/06
Foreign References:
CN204477478U2015-07-15
CN204852447U2015-12-09
CN205064907U2016-03-02
US20150377366A12015-12-31
Attorney, Agent or Firm:
GAOYUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (The Yiguanmiao Post Office Box A-42, Hi-Tech ZoneChengdu, Sichuan 1, 610041, CN)
Download PDF: