Aquamatic Dia/Seal Kt 1.25 & 1.5 Stl Vlv

The Aquamatic Diaphragm and Seal Kit (424-RA) is the correct rebuild kit for larger 1.25-inch and 1.5-inch Aquamatic steel valves. These higher-flow valves handle the demands of larger water-treatment systems, and their reliable operation depends on diaphragms and seals that remain flexible and intact. This kit replaces those wear components to restore proper sealing and crisp valve actuation, returning a larger valve to dependable service without the expense of a full replacement. Rebuilding rather than replacing also keeps the existing valve body and plumbing connections in place, simplifying the job and avoiding the need to disturb hard-piped connections on a larger, heavier valve assembly.

In hydraulically actuated Aquamatic valves, the diaphragm and seals are the parts that flex and shift with every cycle, so they naturally degrade over time. Symptoms of worn components include external or internal leaks, slow or incomplete cycling, and inconsistent flow control, any of which can undermine the performance of the system the valve serves. Replacing them with a genuine kit is straightforward preventive maintenance that keeps a valuable valve in dependable service for years to come and helps avoid larger, costlier failures.

Kit Details

• Aquamatic diaphragm and seal kit
• Sized for 1.25-inch and 1.5-inch steel valves
• Restores reliable sealing and smooth actuation
• Genuine Aq Matic Valve & Controls components
• Cost-effective alternative to full valve replacement
• Suited to higher-flow water-treatment systems

For larger backwashing, regeneration, or flow-control valves that have begun to leak or cycle poorly, this diaphragm and seal kit is the targeted, economical fix that addresses the most common failure points first. Keeping the right kit on hand allows installers and maintenance crews to address valve issues quickly and avoid extended downtime on higher-capacity systems where interruptions are especially costly and disruptive. Be sure to verify your valve size and steel-body configuration before ordering so every component fits correctly the first time and the repair restores full, leak-free performance to your larger Aquamatic valve. During the rebuild, lubricate the new diaphragm and seals with a compatible silicone grease and seat them carefully, since proper seating on a larger valve is what guarantees crisp, complete cycling under the higher flows these units routinely handle.