Title:
PLUG FOR DETECTING GAS LEAKAGE
Document Type and Number:
Japanese Patent JP3302829
Kind Code:
B2
Abstract:
PURPOSE: To reduce working time when using a plug for inspecting gas leakage for an air purge while securing safety.
CONSTITUTION: The title plug consists of a plug body 1 with a hose end, a valve disc 3 which is incorporated into the plug body 1 and is energized in closed-valve state by a spring, a socket S with a push rod 6 where the valve disc 3 is opened up to a first opening C. which is suited for inspecting pressure in the connected state to the plug body 1, and an auxiliary shaft 61 which is connected to the socket S or the valve disc 3 detachably. Then, in a state where the auxiliary shaft 61 is connected and the socket S is connected to the plug body l, the valve disc 3 opens larger than the first opening C1 and can be opened up to a second opening C2 which is suited for air purge.
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Inventors:
Shinichi Nishibori
Application Number:
JP12273194A
Publication Date:
July 15, 2002
Filing Date:
June 03, 1994
Export Citation:
Assignee:
Fujii Alloy Mfg. Co., Ltd.
International Classes:
G01M3/26; F16K1/00; F16K5/04; F16K51/00; F17D5/02; (IPC1-7): G01M3/26; F16K5/04; F16K51/00; F17D5/02
Domestic Patent References:
| JP473478A | ||||
| JP240364Y2 |
Attorney, Agent or Firm:
Eiji Miyazaki
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