WEIGHT LEVER SWING CHECK DN250-DN300

Stem and counterweight of the check valve. AVK check valves with stem and counterweight are suitable for installation in conditions where there is a higher risk of pressure surge than normal at typical flow rates. This solution enables visual inspection, and small valves can be operated manually by moving the stem. The counterweight can be adjusted to achieve optimal sealing against the seat and the fastest possible closing speed to prevent pressure surge. The stem and counterweight are made of SG cast iron and have a blue epoxy coating. This product description is an automated translation of the original Finnish description.