AVK SWING CHECK VALVE WITH LEVER AND WEIGHT, PN 16, 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 1.4404 (AISI 316L) acid resistant stainless steel fitted in the bonnet allows for easy maintenance without removing valve from pipeline
• Position indicating lever with an adjustable weight that aids the disc in closing quickly to reduce water hammer, guard on lever mechanism
• 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, 300µm 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 seat
• Bosses on each side of the valve seat allow for installation of pressure gauge, by-pass, etc.
• WRAS approved product

Information

AVK series 41 swing check valves come with both metal and resilient seats. Installed in pumping applications to prevent back flow they can be used for drinking water as well as waste water. The disc is connected to the shaft via a flexible bush that allows disc and valve seat to adjust exactly. All interior parts are stainless steel or coated with drinking water approved epoxy or EPDM. The series 41 valves are available with either closed bushings or protruding shaft end where a lever with a weight or a spring can be fitted to mitigate pressure surges.