Fluid control apparatus

Abstract

Line interconnecting means interconnecting two lines adjacent to each other laterally thereof comprises a lateral projection 64b formed on a two-way connecting block coupling 64 of the first of the lines, a recessed portion 54c formed in a two-way connecting block coupling 64 of the second of the lines for the lateral projection 64b to fit in, a coupling branch channel 82 formed in the block coupling 64 provided with the lateral projection, a first valve body branch channel 90A formed in the body 54a of a shut-off valve 54 of the first line for always causing a main channel 89 in the valve body to communicate with the coupling body upper surface opening 82a of the coupling branch channel 82, and a second valve body branch channel 90B formed in the body 54a of a shut-off valve 54 of the second line for always causing a main channel 89 in the valve body to communicate with a lateral projection upper surface opening of the coupling branch channel 82.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to fluid control apparatus for use in semiconductor manufacturing equipment, and more particularly to integrated fluid control apparatus which are so assembled that fluid control devices can be individually removed upward for maintenance and inspection. [0002] As to the terms “front,”“rear,”“upper” and “lower” used herein, the right-hand side of FIGS. 1 to 3 is referred to as “front, the left-hand side thereof as “rear,” and the upper and lower sides of FIG. 3 are referred to as “upper” and “lower,” respectively, and the terms “left” and “right” are used for the apparatus or the component thereof as it is seen from behind toward the front. The terms front, rear, upper and lower are used for the sake of convenience; the apparatus may be used with its front and rear portions positioned in opposite relation, or with the upper and lower sides thereof positioned as the left and right sides. [0003] Fluid control apparatus fo...

AI Technical Summary

Benefits of technology

[0014] An object of the present invention is to provide an integrated fluid control apparatus which has line interconnecting means for interconnecting channels of lines and which is reduced in the increase in the number of components (kinds of channel blocks, i.e., of block couplings) in eliminating welded portions from the line interconnecting means, the apparatus thus being made more amenable to the addition or modification of lines.

Problems solved by technology

However, since the line interconnecting means comprises couplings which are welded to a pipe for connection, the apparatus has the problem of necessitating time and labor for interconnecting the lines and disconnecting the lines from one another when lines are to be added or the arrangement of lines is to be altered.

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