Title:
ELECTROPNEUMATIC POSITIONER
Document Type and Number:
Japanese Patent JP3172961
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily perform maintenance of an electropneumatic converter.
SOLUTION: An opening part 16-2 is formed on a wall surface of an explosion-proof case 16, and an electropneumatic converter 3 is fixed to the inside of an explosion proof cover 16-3 to block up this opening 16-2. The explosion-proof cover 16-3 is removably installed on the wall surface of the explosion-proof case 16 by a machine screw 22, and a flowing passage (an air passage) La is formed inside of it. Pipe parts 16-3a and 16-3b are extendedly formed inside the explosion-proof cover 16-3, and these pipe parts 16-3a and 16-3b are inserted into flowing passages L1 and L2 of the explosion-proof case 16. At maintenance time of the electropneumatic converter 3, the electropneumatic converter 3 is pulled out of the explosion-proof case 16 together with the explosion-proof cover 16-3.
Inventors:
Yoshiro Honda
Application Number:
JP4600096A
Publication Date:
June 04, 2001
Filing Date:
March 04, 1996
Export Citation:
Assignee:
YAMATAKE CORPORATION
International Classes:
F15B5/00; F15B9/07; (IPC1-7): F15B5/00; F15B9/07
Domestic Patent References:
| JP642502A | ||||
| JP58102802U |
Attorney, Agent or Firm:
Masaki Yamakawa