Double-offset valve BVD02

butterflywith handwheelfor seawater

TIS double flanged double eccentric butterfly valve with vulcanized hard rubber lining for saline media (seawater or well-desalination) or corrosive media, is designed to withstand the chemical attack of chloride ions. Due to the fluid’s aggressivity, standard epoxy coated valve surfaces would be rapidly abraded or corroded. The best possible solution, in order to guarantee the valve’s longevity and safe operation, is to protect the inner surface of the valve with 3 mm of hard rubber lining: this way, the disc and internal surface of the body are protected from the aggressive fluids. Other parts of the valve in contact with water (shaft and retaining seal ring) are made of duplex stainless steel, with high resistance to corrosion. Shaft and disc polygon coupling “P3G” type according to DIN 32711 Main disc sealing ring made of EPDM according to EN 681-1 WA, WB Internal and external surface protection made of epoxy resin powder (FBE), blue colour RAL 5015 and thickness of 250μm Soft sealing according to EN 593 Flanges as per EN1092 Face to face dimension according to EN 558 series 14 All materials, including lubricants, in contact with water approved for human consumption according to EN 1074-1 and EN 1074-2 Hydraulic test according to EN 12266-1 Tight in both flow directions, rate A according to EN 12266-1 (zero drops); Flange dimensions according to EN 1092-2 Working temperature Min. -10°C (excluded frost) Max. + 70°C;