Titan 2369442 Compression Spring

Compression Spring for PowrLiner and Elite Striping Equipment

Part 2369442 is a replacement compression spring designed for use in the fluid section of compatible PowrLiner and Elite airless striping machines. This compression spring is a critical component within the check valve assembly, responsible for providing the consistent closing force that seats the ball against the valve seat after each pump stroke. During the upstroke of the piston, fluid pressure overcomes spring tension, lifting the ball off its seat to allow coating material to enter the pumping chamber. As the piston reverses direction on the downstroke, the compression spring pushes the ball back onto the seat, creating a seal that prevents fluid from flowing backward and directs it forward toward the spray tip. This alternating opening and closing cycle occurs hundreds of times per minute during normal operation, subjecting the spring to continuous compression and release cycles. Over extended service, the spring may experience fatigue, loss of tension, or corrosion that alters its force characteristics. A weakened spring may fail to seat the ball fully, allowing blow-by that reduces pump output pressure and efficiency. A spring that has lost tension can also cause delayed valve closure, resulting in erratic pressure response and inconsistent stripe application. Conversely, a spring that has become damaged or distorted may cause the valve to stick or fail to open properly, leading to priming difficulties or complete pressure loss. The compression spring is manufactured to precise specifications for wire diameter, coil count, free length, and spring rate to ensure correct valving dynamics within the fluid section. When rebuilding the fluid section or addressing check valve performance issues, installing a new compression spring restores the original closing force and timing essential for reliable pumping operation.