Double-Eccentric Flanged Butterfly Valve

Product Code: MD-VLV-0018

Features: The double-eccentric design provides zero leakage and low operating torque. | Internal and external valve surfaces are coated with 250 µm thermoplastic coating. A 300 µm coating or alternative coating systems can be supplied on request. | The thermoplastic coating provides high impact resistance. | Suitable for bidirectional flow and testing; however, the flow direction must correspond to the direction indicated on the valve. | The ductile-iron body and disc withstand pipeline stresses. | The retaining ring is manufactured from St 37 steel as standard; a stainless-steel ring is available on request. | The disc profile is optimized for the flow direction to reduce pressure loss. | The retaining-ring bolts are A2 stainless steel. | EPDM, NBR or VITON seats selected according to operating conditions can be replaced easily on site. | Seals in the bearing bushes protect the disc pin bores against corrosion (dry-shaft design). The valve bearings are self-lubricating. | The retaining ring is secured to the disc with socket-head screws. O-rings beneath the screws protect the disc against corrosion. | The gearbox mounted on the top flange enables low-torque operation. Contact FAF for gearbox models suitable for actuator mounting. | Lifting eyes and support feet maintain balance during handling and installation. | WRAS approved for potable-water service. Applications: Pipelines | Treatment plants | Pumping and booster stations | Cooling-water circuits in seawater applications | Cooling-water circuits in power plants | Industrial applications