BUTTERFLY CHECK VALVE AVK DN80

AVK's flap check valves are easy to maintain by simply loosening a few bolts and lifting out the entire assembly consisting of the shaft and flap. The flap is fully vulcanized with EPDM rubber and mounted on a nylon shaft, allowing it to move slightly in both vertical and horizontal directions, ensuring the valve is completely leak-tight. AVK's range also includes flap check valves with enclosed bearings and a free shaft for mounting the arm and counterweight or spring. This product description is an automated translation of the original Finnish description.