March 0135-0122-1000 O-Ring

March 0135-0122-1000 Teflon O-Ring for Magnetic Drive Pumps

The March 0135-0122-1000 is an OEM Teflon O-ring available as an alternative sealing component for compatible March MDK-MT3 magnetic drive centrifugal pumps. March lists this part in the optional parts section of the MDK-MT3 and MDK-MT3-AM pump documentation.

This replacement seal is intended for the specified static housing joint. Its purpose is to maintain the sealing interface between mating wet-end components while accommodating the manufacturer-approved material configuration.

Housing Sealing Function

The O-ring works with the pump housing surfaces to help contain the process liquid. Proper fit, sealing surface condition and correct assembly are important for maintaining the intended fluid-handling arrangement.

Teflon Material Selection

Teflon is used in selected industrial sealing applications where its chemical resistance characteristics are appropriate. However, the suitability of the seal must be evaluated alongside the complete pump materials, operating temperature and process fluid. A Teflon seal should not automatically replace another elastomer without confirming the manufacturer-approved option.

Compatible March Pump Configurations

March identifies this O-ring as an option for MDK-MT3 and MDK-MT3-AM configurations, with additional listings in related pump documentation. Verify the exact pump model and existing seal arrangement before ordering.

Maintenance and Replacement

Inspect the existing seal for distortion, damage and signs of leakage. Clean the housing joint and inspect the sealing surfaces before installing the replacement. Follow the applicable March assembly procedure to avoid damaging the seal.

Ordering Guidance

Choose March 0135-0122-1000 when the original pump documentation specifies the Teflon O-ring option. This is an individual replacement seal, not a complete wet-end kit.