Vedeneyev M14-P PRV SPRING, LARGE PISTON, ( YAK 52) FREE SHIPPING

Description

FREE SHIPPING IN CONTINENTAL US
All Yaks with more than one seat ( 52/54/yak 18-T) use the large piston in the Pressure Relief Valve. This is the correct spring for that piston.
Item 3 in the diagram.
( Yak 50, 55 and Yak 52TW use the smaller diameter PRV Piston which takes a smaller spring - not available here)
The hex nut on the PRV (Yak 50 shown) - controls the pneumatic system pressure by adjusting this compression spring. It's VERY RARE that these springs break, but if you need one, we are here for you!
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 bits of broken spring,
* install the new spring and wind on the same number of turns on the hex cap.