Product Details

• Next generation design for long life
• Flexi-Hinge® check valves have features to make them ideal for use with positive displacement and centrifugal blowers
• Use the same internals as the threaded bodies
• Replacement repair kits fit all valves
• For maximum life in blower service, Flexi-Hinge® valves should be installed with the center pin vertical in horizontal pipelines
• Vertical upflow does not require any special considerations but vertical downflow may likely require an optional spring to ensure closure of the valve plates
• Flexi-Hinge® valves should be located a minimum of 5 pipe diameters (preferably 10) from any valves or fittings in order to maintain stable laminar flow
• In PD blower applications, it is best to locate check valves on the discharge end of a silencer
• Pulsating and/or turbulent air-flow is one of the most common causes of reduced check valve life in STP blower systems