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Title:
BALL VALVE
Document Type and Number:
Japanese Patent JP2001280517
Kind Code:
A
Abstract:

To perfectly discharge a drain, such as water remaining around a lower stem provided in a trunnion type ball valve by a drain means which has a simple structure.

In this trunnion type ball valve, a ball 6 having a through-hole 5 is provided rotatably inside a cross-sectionally nearly spherical or cross- sectionally cylindrical body 1, 10 via an upper stem 7 and the lower stem 8, 19. A fitting part 21 of the body 1, 10 axially provided with the lower stem 8, 19 is communicated with a cavity 15, 20 inside the body 1, 10 via communication part 22 to discharge the drain 23 remaining in the cavity 15, 20 outward.


Inventors:
Nakanishi, Sadayuki
Nakatomi, Kuniyuki
Application Number:
JP2000000092673
Publication Date:
October 10, 2001
Filing Date:
March 30, 2000
Export Citation:
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Assignee:
KITZ CORP
International Classes:
F16K27/06; F16K5/06; F16K51/00; (IPC1-7): F16K5/06; F16K27/06; F16K51/00
Attorney, Agent or Firm:
小林 哲男



 
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