Patent ID: 8281816

Claim:
A fluid control apparatus comprising: a fluid controller; extended flow-channel blocks provided at opposite sides of the fluid controller and having a fluid flow channel communicated with a corresponding fluid flow channel of the fluid controller; and a pair of support flow-channel blocks which have fluid flow channels communicated with the fluid flow channels of the extended flow-channel blocks and are secured to a base member to support the fluid controller, wherein each of the support flow-channel blocks includes a large block portion which has a fluid flow channel and an opening thereof abutted against an opening of the fluid flow channel in each of the extended flow-channel blocks with seal means interposed therebetween and, also, is in contact with a lower surface of each of the extended flow-channel blocks, and a small block portion which has a lower surface flushed with the large block portion and has a height smaller than a height of the large block portion, and the small block portion is located under the fluid controller and is provided with a male-screw-member insertion hole for mounting each of the support flow-channel blocks to the base member, and wherein each of the extended flow-channel blocks is mounted to the fluid controller main body, such that the lower surface of the extended flow-channel block is at a position higher than a lower surface of the fluid controller main body, and a top-portion side surface of the large block portion is in contact with a side surface of a flow-rate adjustment device main body.