4S QGD (EPDM) submersible pump valve diaphragm 82*93

4S QGD (EPDM) 0.5/ 1.2-50-0.37 borehole submersible pump check valve diaphragm, diagonal hole spacing is ~72~82 mm. Outer diameter 93 mm. Suitable for models like Belamos SP 40/5, Maxima 4QGD-0.37, Werk 4QGD1.2-50-0.37, 4QGD1.8-50-0.5, Rudes, IBO SQIBO 0.75, APC, Sprut 4S QGD (EPDM) 0,5-, 1.2-50-0.37 (A36)