A coupling solenoid valve of which both side faces in the valve-width direction correspond to a first coupling face and a second coupling face for being coupled with another solenoid valve,Bellows Seal Valves said coupling solenoid valve comprising: a main valve unit including multiple coupling communication holes passing through in the valve-width direction, a valve hole through which said coupling communication holes mutually communicate, and a spool for switching a channel accommodated within said valve hole; and a solenoid operating unit connected with said main valve unit; wherein said main valve unit includes an engaging hook on said first coupling face side, also includes a hook-engaging portion on said second coupling face side,Water Power Control Valves said hook is formed on a movable binding member assembled so as to operate said main valve unit from the top face, and said binding member is capable of moving between the binding position where said hook is engaged with said engaging portion of the adjacent solenoid valve and the separating position where said hook disengages from said engaging portion. CHECK VALVESA technique using multiple solenoid valves mutually connected in a solenoid valve assembly form has been conventionally known as disclosed in Patent Document No. 1 for example. This kind of solenoid valve assembly generally comprises multiple solenoid valves including coupling communication holes to be mutually connected by coupling, a port block including integrated air-supply/discharge ports, a connector block including an integrated power-supply electrical connector, and an end block to be disposed as necessary, which are mounted on a rail in array, and are fixed in a coupled state. Methods for fixing these include various types such as fixing each of the solenoid valves and other blocks or the like with screws, integrally binding an array of solenoid valves and another array of other blocks with a tie rod, fixing these arrays so as to be sandwiched by end blocks positioned on both ends, and so forth. However, in the event of fixing each solenoid valve and other blocks in a coupled state, the aforementioned conventional solenoid valve assembly has problems in that work is troublesome since a great number of screws must be handled, and the entire coupled state and airtightness of coupling communication holes are easily influenced due to the fastened state of the one tie rod or the fixed state of the end blocks, and accordingly, a simpler and more reliable technique for coupling has been in demand. In particular, with solenoid valves having coupling communication holes to be mutually connected by coupling, the adjacent solenoid valves need to be securely coupled so as not to allow deterioration in airtightness of the coupling communication holes.

MORE NEWS