A connector connecting two fluid apparatuses of the same type or different types selected from:
- a first fluid apparatus in which a flange having a butting face at which a fluid port is opened is provided on a coupling head, the first fluid apparatus having clamp portions with clamp grooves formed parallel with each other at two sides of the flange between the clamp portions and the coupling head;
- and a second fluid apparatus in which a flange having a butting face at which a fluid port is opened is provided on a coupling head, the second fluid apparatus having clamp portions with clamp grooves formed at four sides of the flange between the clamp portions and the coupling head,
- the connector comprising:
- a coupling block provided with:
- a spacer portion having seal faces contacting the butting faces of the two fluid apparatuses and formed on both faces of the spacer portion, and having a through-hole causing the fluid ports of the two fluid apparatuses to communicate with each other;
- and an operating portion provided on one side of the spacer portion;
- a pair of tongue portions provided on the operating portion corresponding to both the faces of the spacer portion;
- a seal member attached between the butting face and the seal face so as to surround the through-hole;
- a fastening member provided with tongue portions opposed to the tongue portions of the operating portion and contacting wedge faces of the clamp portions, the fastening member being detachably fastened to the other side of the coupling block;
- and
- guide protrusions provided on end of the operating portion, the guide protrusions being inserted into recessed guide portions formed on two sides of the flange when the coupling block is attached to the flange of the first fluid apparatus by inserting the tongue portions into one of the clamp grooves on the two sides, and the guide protrusions being capable of being inserted into any of recessed guide portions formed on the four sides of the flange, respectively, when the coupling block being attached to the flange of the second fluid apparatus by inserting the tongue portions into any of the clamp grooves on the four sides, wherein
- the coupling block has first and second coupling states,
- in the first coupling state, the coupling block allows the tongue portions to contact the respective wedge faces of the clamp portions of the first and second fluid apparatuses arranged in a direction parallel to each other, and
- in the second coupling state, the coupling block allows the tongue portions to contact the respective wedge faces of the clamp portions of the first and second fluid apparatuses arranged in directions orthogonal to each other.