Wellforce EPDM Membrane for WF500750 (Model M500850)

A replaceable EPDM membrane designed for WellForce pressure tanks, specifically for models in the 500 L to 750 L range (often referenced as M500850 or similar membrane part for WF50010VE and WF75010VE tanks). This membrane separates air from water inside the pressure tank, preventing waterlogging and allowing the tank to maintain proper precharge and pressure balance for pump systems. WellForce EPDM membranes are made from ethylene propylene diene monomer (EPDM) rubber, providing flexibility, chemical resistance, and durability for pressure tank applications. WellForce pressure tanks use highquality tiered EPDM membranes to improve service life and performance.

Specifications

Model: M500850 (Wellforce EPDM Membrane for WF500750)
Brand: WellForce

Material: EPDM (Ethylene Propylene Diene Monomer) rubber membrane
Application: Replaceable internal membrane for WellForce pressure tanks in the 500 L to 750 L size range

Compatible Tank Models:
Tanks such as WF50010VE (500 L) and WF75010VE (750 L) from the WellForce vertical membrane tank series, which use tiered EPDM membranes.

Function: Separates air and water within the pressure tank to prevent waterlogging, improve drawdown efficiency, and maintain consistent system pressure.

Benefits:
Helps maintain air cushion and proper precharge
Chemical and corrosion resistance typical of EPDM
Flexible to accommodate volume changes in pressure tanks
Extendable service life with periodic replacement

Typical EPDM membrane characteristics:
Flexible elastomeric synthetic rubber
Excellent weather, ozone, and chemical resistance
Suitable for potable water and pressure system applications