| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to easily attach and detach a passage from a main body operation part to a fluid pressure source side out of fluid feed and discharge paths and to enable the easy washing of the fluid feed and discharge paths by independent washing of the passage portion and the exchange of the passage portion, etc., by mounting a connection pipe connected with the fluid passage and external piping into a through-hole formed at the casing flank of the main body operation part. SOLUTION: A supporting plate 30 is fixed to a main body case part 1a of the main body operation part and the through-hole 45 for pipe connection is formed at a cap body 41 of the main body case part 1a. The connection pipe 46 for connecting fluid piping 21 and a suction source side flow passage 12 are inserted therein. A stopper part for fixing the connection pipe 46 in insertion and removal directions is formed at the outer peripheral surface of the pipe. Detaining grooves disposed at the outer peripheral surface of the connection pipe 46 are inserted into a pipe bearing part formed to an approximately U shape formed at a mounting member 48 mounted at the supporting plate 30 on the side nearer the base end thereof, and further, the pushing-in direction of the connection pipe 46 is born near the pipe bearing part of the mounting plate 48 by a receiving strut 52 erected at a casing 40.
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