Aqualon 11965 – Check Valve Retainer, E-Max – Replaces OMAX 308104
Aqualon Part Number: 11965
Replaces OMAX Part Number(s): 308104
Other References: None verified
Includes: Check valve retainer
Stock Status: In stock (Europe) – Estimated 2 week lead time. Ships from Melbourne, Australia.
Overview
The Aqualon 11965 – Check Valve Retainer, E-Max – Replaces OMAX 308104 is the retainer used in EnduroMAX-style inlet check valve assemblies. It secures the internal valve components in position and applies the correct axial preload to the seat, ceramic ball, and sealing stack during pump operation.
What’s Included
Check valve retainer configured to replace OMAX 308104.
Purpose / Why It Matters
The check valve retainer holds the inlet check components in alignment, ensuring smooth opening during suction and instant sealing during the pressure stroke. Wear, thread damage, or deformation of the retainer can cause misalignment of the seat or ball, leading to pressure instability, slow pressure rise, leakage at the inlet position, or inconsistent pierces. Replacing the retainer with Aqualon 11965 restores proper component alignment and reliable valve timing within the E-Max check-valve assembly.
Compatibility
Aqualon 11965 replaces OMAX 308104 for EnduroMAX (E-Max) pump check-valve assemblies designed to use this OEM retainer.
No additional compatibility is claimed.
When to Replace / Service Indicators
Visible thread wear or distortion
Unstable or slow pressure build
Leakage or backflow at the inlet valve location
Valve components shifting during inspection
Replacement during major or corrective check-valve service
Common Uses
Servicing EnduroMAX inlet check-valve assemblies
Corrective replacement after retainer or valve-stack wear
Maintaining stable pump performance in production environments
Why Choose Aqualon
Aqualon check-valve hardware is manufactured to meet the functional requirements of the OEM components it replaces. The Aqualon 11965 retainer ensures proper component support, consistent sealing behaviour, and long-term stability within EnduroMAX pump wet ends.
