1-1/2 in. MNPT Aluminum Blower Check Valve

Part #F112502M3330  |  Item #4933016  |  Manufacturer Part #1-1/2502M-3-3-3-0

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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


Coating: Aluminum

End Connection 1: MNPT

End Connection 2: MNPT

End Connections: MNPT

Fitting Type: Straight

Length: 4 in

Low Pressure: 0.5

Material: Aluminum

Maximum Temperature: 500

Type: F112502M3330

UL Listed: No

Valve Size: 1-1/2 in

Valve Type: Check Valve