Title:
BELLOWS SEAL VALVE
Document Type and Number:
Japanese Patent JPH0642677
Kind Code:
A
Abstract:
PURPOSE: To provide a bellows seal valve incorporating bellows excellent in strength and corrosion resistance.
CONSTITUTION: A bellows seal valve comprises a valve body 1 having a valve seat 3, a valve rod 3 slidably provided in the valve body 1, a valve element 4 provided to one end part of the valve rod 2 and adapted to abut against the valve seat 3, seal bellows 5 in two layers attached to the outer periphery of the valve rod 2 in the valve body 1. The seal bellows 5 in two layers, are composed of an atmospheric side bellows part 11 made of a material having a high strength, and, a liquid contact side bellows part 12 made of a corrosion resistant material.
Inventors:
KUDO MASAHITO
YAMADERA MASAO
YAMASHITA YASUHIRO
YAMADERA MASAO
YAMASHITA YASUHIRO
Application Number:
JP17554091A
Publication Date:
February 18, 1994
Filing Date:
July 16, 1991
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA ENGINEERING CO
ISHIKAWAJIMA HARIMA HEAVY IND
OKANO VALVE SEIZO KK
TOSHIBA ENGINEERING CO
ISHIKAWAJIMA HARIMA HEAVY IND
OKANO VALVE SEIZO KK
International Classes:
F16J3/04; F16K41/10; (IPC1-7): F16K41/10; F16J3/04
Attorney, Agent or Firm:
Kazuo Sato (3 others)