Patent ID: 7080817

Claim:
A valve of the pilot type comprising: a housing with a cylinder end having a lateral surface, axis and an end face perpendicular thereto, for mounting in a valve base having a cylindrical recess accommodating said cylinder end, with an outlet opening formed in a face of said cylindrical recess, and an inlet opening, said housing having an inlet port at said cylinder end, an outlet port at said end face, an internal cavity and a flexible membrane dividing said cavity into a flow chamber and control chamber, said inlet port being in constant communication with said flow chamber, said outlet port being in communication with said flow chamber via a valve seat formed in the housing opposite said membrane and closable by displacement of said membrane, said valve further having a bleed channel connecting said flow chamber and said control chamber, a pilot channel connecting said outlet port with said control chamber, closable by a control element, wherein said end face is formed to receive a first annular seal disposed around said outlet port, such that when said valve is mounted into said valve base, said first seal is urged axially to said face of the cylindrical recess providing fluid-tight communication between said outlet port and said outlet opening, and said inlet port is formed at said lateral surface so as to provide inlet flow transverse to said axis, wherein said pilot channel is obtained through said membrane, and wherein said membrane has a part thereof firmly attached to said housing, and said pilot channel is obtained through the attached part.