-40%
Vedeneyev M14-P PRV PISTON, Yak 50, Yak 55/M, Yak 52TW FREE SHIPPING
Vedeneyev M14-P PRV PISTON, Yak 50, Yak 55/M, Yak 52TW FREE SHIPPING
Vedeneyev M14-P PRV PISTON, Yak 50, Yak 55/M, Yak 52TW FREE SHIPPING

Vedeneyev M14-P PRV PISTON, Yak 50, Yak 55/M, Yak 52TW FREE SHIPPING

$ 33.71

Availability: 80 in stock
  • Compatible Model: YAK 55, YAK 52TW, YAK 50
  • Compatible Make: Yakovlev
  • Brand: Yakovlev
  • Condition: New
  • Country/Region of Manufacture: United States
  • Modified Item: No
  • Warranty: 6 Month
  • Non-Domestic Product: No
  • Manufacturer Part Number: TYC0205
  • Custom Bundle: No

    Description

    FREE SHIPPING IN CONTINENTAL US
    All single seat Yaks ( 50/55) plus the Yak 52 TW use this small piston in the Pressure Relief Valve.
    ( Yak 52 and Yak 18T use the larger diameter PRV Piston that has a saddle )
    The hex nut on the PRV (Yak 50 shown) - controls the pneumatic system pressure by adjusting a compression spring. That force is on this Piston 24/7 so eventually the rubber slug in the face will take a set  -  at which time it may not seal as well as a new one.
    A great place to start if your air pressure gauge is dropping overnight.
    To replace it,
    * carefully depressurize the system,
    * remove the hex nut ( making a note of how many turns were required )
    * lift out the spring,
    * swap the piston with your new one
    * re-install the spring and wind on the same number of turns on the hex
    * THEN LEAVE IT ALONE for a couple of hours. Let the spring pressure pre-seat the rubber seal BEFORE YOU TURN ON  system air.
    Doing this will prolong Piston seal life.