Titan 138-340 Foot Valve Ball

Foot Valve Ball for PowrLiner, PowrTex, PowrTwin, PowrBeast, Admiral & Commander Sprayers

The 138-340 Foot Valve Ball is a precision spherical component used in the foot valve assembly of compatible sprayer models. It acts as a check valve, allowing material to flow into the suction line while preventing backflow when the pump stops.

The foot valve is located at the bottom of the suction tube and is critical for maintaining pump prime. When the pump operates, suction lifts the ball off its seat, allowing material to enter. When the pump stops, gravity and back-pressure seat the ball, sealing the line and preventing material from draining back into the supply container. This ensures the pump remains primed and ready for immediate operation when restarted. The ball must be perfectly spherical and smooth to create a reliable seal with the valve seat.

Over time, foot valve balls can become worn, corroded, or develop flat spots that prevent proper sealing. A worn or damaged ball can cause loss of prime, requiring repeated priming and reducing productivity. It may also allow material to drain back, creating mess and waste. Replacing the foot valve ball restores proper one-way sealing, ensures reliable priming, and prevents material drain-back.