Title:
【発明の名称】複式安全弁用モニタ-装置
Document Type and Number:
Japanese Patent JPS6014923
Kind Code:
B2
Abstract:
An improved electro-pneumatic monitor for double safety valves controlled by solenoid-operated pilot valves. The monitor comprises a relatively short spool centrally held by oppositely disposed captive springs. The sensing passages are provided with relatively small orifices which help to de-sensitize the monitor. The resulting construction is resistant to shifting in response to minor double valve irregularities which otherwise could create undesired lockout conditions.
Inventors:
EDOWAADO BENSON HOOTAA
Application Number:
JP10705879A
Publication Date:
April 16, 1985
Filing Date:
August 22, 1979
Export Citation:
Assignee:
ROSS OPERATING VALVE CO
International Classes:
F15B20/00; F15C3/02; F16K37/00; (IPC1-7): F15B20/00
Attorney, Agent or Firm:
Teruichi Hase