Patent ID: 11892094
Assignee: NEOPERL AG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. A valve arrangement (1, 50, 75, 100), comprising:
a main valve (2) including a housing (20), a valve seat (3) between a main valve inlet (4) and a main valve outlet (5), a diaphragm (6) which selectively closes off and opens up the valve seat (3), and a pressure chamber (7) which is closed off by the diaphragm (6) and by which the diaphragm (6) is switchable via application of pressure;
a pilot valve receptacle (12) formed on or connected to the main valve housing (20)
a pilot valve (8) configured to control a release of pressure of the pressure chamber (7) into the main valve outlet (5) of the main valve (2), the pilot valve (8) including a main body (9) on which a pilot valve inlet (10) and a pilot valve outlet (11) are formed, the pilot valve inlet (10) is, via the pilot valve (8), selectively connectable to the pilot valve outlet (11) and separable therefrom, and the main body (9) is inserted into the pilot valve receptacle (12) in an insertion direction (13); and
a fastener formed on the main body (9) and a mating fastener is formed on the pilot valve receptacle (12), and the fastener and mating fastener form a lockable and releasable connection, wherein the connection is a ¼ turn connection;
wherein the pilot valve receptacle (12) has an inflow (14) corresponding to the pilot valve inlet (10) and has an outflow (15) corresponding to the pilot valve outlet (11), the inflow (14) is connected to the pressure chamber (7) and the outflow (15) opens into the main valve outlet (5) on the outflow side of the diaphragm (6);
wherein the pilot valve inlet (10) and the pilot valve outlet (11) are arranged offset from one another at least in the insertion direction (13); and
wherein the pilot valve (8) further includes a valve plunger (23) that has a distal end section (30) of reduced diameter.