Kinsler KIN-3970 K-140 High Speed Bypass Valve Adjustable 49-106 Psi

This valve has the highest flow capacity with the lowest pressure rise of any valve on the market. For most applications the rise is under 1 PSI, since the total bypass flow for most systems is 600 lbs/hr or less. Extremely smooth operation. The closing flow curve is within 0.3 (3/10) PSI at any flow point on the opening curve. This is achieved by hard coating, then micro lapping all of the moving parts. This means the pressure in the fuel system will stay close to the set point on both rising and falling engine RPM. THE ULTIMATE HIGH SPEED K-140 #3989 #3161 Exploded view of K-140 Close up of live-action pintle Many valves can go into a "buzz" (hydraulic vibration); this valve is more stable as it is the only valve on the market with a unique spring arrangement designed to control buzz. The diaphragm has a swivelling "live" centre pintle that closes down on the seat for very smooth operation.

Both the pintle and the seat are lapped for bubble tight close-off. Hard anodized aluminium housing components and a very compact design makes this piece lighter and easier to install in the vehicle. Components are compatible with gasoline and methanol. Seven different spring combinations are available for a total adjustable range of 17 - 230 PSI. There is also CUSTOM BUILDUP SERVICE available. Accepts Kinsler or Hilborn jets.....has jet sealing O-ring for restrictor jet. Valve is LIGHT, weighs 0.45 lbs. The K-140 High Speed comes complete with : 1- 6 AN male flare inlet fitting, 8 AN port plug for unused inlet port 3 AN port plug for pressure gauge port #3989 vent breather filter #3161 restrictor jet holder. Complete assembly, 49-106 PSI.