AVK SWING CHECK VALVE, METAL SEATED, DN350-600

Description

Key Features

• Clear way and full bore for low head loss and easy pig-cleaning
• Metal seat in high strength alu-bronze
• Shaft in 1.4021 (AISI 420) stainless steel fitted in the bonnet allows for easy maintenance without removing valve from the pipeline
• Hinge of ductile iron coated with drinking water approved epoxy, firmly tightened around the shaft to eliminate play
• Bonnet gasket lying in a groove between bonnet and body prevents blow-out
• All seals and coatings with contact to the fluid are approved for drinking water – coating is blue, 250µm fusion bonded epoxy
• Disc mounted in a flexible rubber bushing which allows it to tilt slightly in all directions and adjust exactly to the valve seal
• Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
• WRAS approved product

Information

AVK swing check valves provide easy access to maintenance simply by unscrewing a few bolts and lifting the bonnet assembly including shaft and disc out of the body. The disc is fully vulcanized with EPDM rubber and is mounted in a nylon bushing allowing it to move slightly horizontally and vertically to achieve compete tightness. AVK swing check valves are available with closed bushings and with free shaft for mounting of lever and weight/spring.