Pressure operated fluid valve with configurable diaphragm arrangement

A pressure operated fluid valve (10) with a configurable diaphragm arrangement (100), comprising a main fluid flow chamber (20) having a diaphragm gate (21), a seat (22), a first profile holder (23);

• a diaphragm cover (50) having a second profile (53);
• a diaphragm;
• the pressure operated fluid valve (10) forming an upstream side (11), a downstream side (12), a diaphragm side (13);
• characterized by:
• a configurable diaphragm arrangement (100) consisting of
• A flexible profile (110),
• A sealing portion (130) having a metallic insert (131) encapsulated in a natural or a synthetic rubber, the sealing portion (130) having a combination profile (140) consisting of
• a first curvatured profile (132),
• a second curvatured profile (133),
• a third curvatured profile (134), and a fourth curvatured profile (135) forming an outwardly convex profile, the fourth curvature profile (135) having a peripheral flat end (139), and
• a pressure management profile (150) on an inside curvilinear surface (114) of the flexible profile (110);
• the flexible profile (110) forms a flexible link allowing the sealing portion (130) to move up and down in the main fluid flow chamber (20), the configurable diaphragm arrangement (100) disposed in the main fluid flow chamber (20) by a first end (112) of the flexible profile (110) securely trapped between the first holder profile (23) and the second holder profile (53) such that there is a clear peripheral space (14) between an outer surface (113) of the clapo-diaphragm (100) and inner circumferential surface (24) of the main fluid flow chamber (20);
• has a first anchor (57) in the diaphragm cover and a second anchor (137) in the inner base of the configurable diaphragm arrangement (100).