Molded Circular Diaphragm with Rubber Pump Diaphragm and Square Mounting Flange

Elastomer compound and diaphragm thickness tolerance together determine working pressure rating and fatigue life in a rubber pump diaphragm; EPDM provides ozone and heat resistance for hydropower and environmental pump applications, while NBR handles oil and fuel contact in automotive and machinery pump assemblies, and thickness variation above ±0.1 mm shifts the deflection point under pressure and changes the pump stroke volume. Anhui Xijiao / Shanghai Xijiao Rubber Products (Shanghai, founded 1998) moulds this circular rubber pump diaphragm with square mounting flange and flat peripheral sealing lip at their in excess of 15,000 m² Shanghai facility, with diaphragm thickness, flange OD, and lip width checked against your released print at initial sample inspection. IATF 16949, ISO 9001, ISO 14001, and ISO 45001 certifications govern quality records for automotive, electric motors, home appliances, and hydropower rubber pump diaphragm applications. Clients span food & beverages, motorcycle, and fire protection sectors. Provide diaphragm thickness tolerance, flange dimensions, sealing lip width, and elastomer grade and your drawing for quoting. For a moulding price estimate from our shanghai team.