Logix 255 Valve Spring

The Logix 255 Valve Spring is a genuine Pentair replacement part for Autotrol 255 control valves, delivering the calibrated tension that keeps the valve's internal mechanism operating smoothly through every regeneration cycle. Despite its modest size and light weight, this spring plays an integral role in proper component seating and the consistent, repeatable movement that defines a well-functioning Logix-series control head.

When to replace

Springs do quiet but constant work, compressing and releasing on every cycle for years on end. Eventually they relax, corrode in the damp environment, or break, and the effects show up in the valve's behavior. If your softener or filter has begun cycling unevenly, leaking internally, failing to complete regeneration, or simply feeling less crisp in operation, a worn or weakened spring is a common and often overlooked culprit. Restoring the correct tension brings back the precise action the valve was designed to provide.

• Genuine Pentair Logix valve spring
• Fits Autotrol valve model 255
• Maintains correct internal tension and component seating
• Recommended for valve rebuilds and routine service
• Item weight: 0.01 lbs
• A small part that prevents larger valve problems

This lightweight, durable component is a staple in professional water treatment repair kits precisely because it is inexpensive to stock yet capable of causing outsized trouble when it fails. Replacing it proactively during a planned rebuild, rather than reactively after a breakdown, helps avoid emergency service and the downtime that comes with hard water.

Because springs are matched to specific Autotrol valve bodies, verify that you are servicing a model 255 before ordering so the tension suits your control head. While the valve is open, take the opportunity to inspect seals, discs, and other wear parts so any companion issues can be handled in the same visit. Replacing this small spring at the right time keeps your system delivering treated water reliably and helps you sidestep bigger, costlier repairs. Treating this small spring as a routine wear item, rather than waiting for it to fail, is one of the quiet habits that separates a trouble-free softener from one that delivers nagging, hard-to-diagnose issues. For service businesses, stocking these springs across the common Logix models means a technician rarely has to delay a rebuild for want of a single inexpensive part, keeping trucks productive and customers satisfied.