Autotrol 155 Camshaft, Lng Rnse, X-Salt

This Autotrol 155 Camshaft is the XL Long Rinse, Extra Salt configuration from Pentair, engineered to define the regeneration profile on Autotrol model 155 control valves. The camshaft is effectively the timing brain of the valve's mechanical cycle, and this particular version is shaped to deliver a longer rinse and a higher salt setting for applications that benefit from more thorough resin cleaning and greater regeneration capacity.

In an Autotrol valve, the camshaft rotates and its precisely contoured lobes actuate the discs and ports that carry the system through service, backwash, brine draw, and the rinse phases. The shape of those lobes determines how long each step lasts and how much brine is drawn, which directly affects salt efficiency, rinse quality, and how completely the resin bed is restored on every cycle. Selecting the right camshaft profile is therefore a meaningful tuning decision, not just a replacement task.

Specifications

• Genuine Pentair Autotrol camshaft
• Fits Autotrol valve model 155
• Profile: XL Long Rinse, Extra Salt
• Sets regeneration timing and cycle sequence
• Item weight: 0.16 lbs
• Suited to challenging water or higher-capacity setups

The long-rinse, extra-salt profile is particularly appropriate for difficult water conditions or higher-capacity installations where a more aggressive regeneration helps keep the resin bed clean and fully recharged. The extended rinse also helps flush residual brine more completely before returning the unit to service, which can improve water quality immediately after regeneration.

If you are replacing a cracked or damaged camshaft, or deliberately changing your regeneration behavior, this part lets you dial in the cycle your water actually demands. Before ordering, confirm you have a model 155 valve and that the long-rinse, extra-salt profile genuinely suits your installation and salt budget. With the correct camshaft installed, your softener delivers consistent, efficient, and thoroughly rinsed soft water. Keep in mind that a more aggressive regeneration profile uses more salt and water per cycle, so the long-rinse, extra-salt configuration is best reserved for situations where the water quality genuinely warrants it rather than applied as a default. During the same service, it pays to inspect the discs, seals, and refill control, since a fresh camshaft works best alongside healthy companion parts, and addressing them together avoids reopening the valve again soon afterward.