High-quality replacement diaphragm membrane designed for Varem 200‑litre expansion vessels and pressure tanks. This spare part restores proper hydropneumatic performance for domestic and light-commercial water systems, autoclaves and hot potable-water applications — ensuring stable pressure, reduced pump cycling and longer system life.

Key features

• Capacity fit: 200 L / suitable for compatible Varem 200‑litre tanks and models.
• Material options: manufactured in durable rubber compounds (EPDM / butyl; some reinforced types available) for potable water and heating uses.
• OEM spare-part design: matches Varem membrane codes used for MB200 series vessels for a direct replacement.
• Improves system efficiency: restores precharge separation, prevents waterlogging and reduces pump short-cycling.

Sources show Varem supplies official spare membranes and part codes for vertical and horizontal expansion vessels, and distributors list the MB200 membrane as a standard replacement for 200 L tanks.

Installation & compatibility

Replacement is straightforward for technicians familiar with pressure‑tank service: isolate system pressure, drain the vessel, remove the flange, swap the membrane and re‑pressurize to the recommended precharge. Check the vessel’s stamped model/code before ordering to confirm fit. Many resellers list compatible membrane codes and materials to help ensure correct selection.

Why choose this membrane

Choose the Los Varem Membraan 200 for an OEM‑grade replacement that returns your Varem expansion vessel to reliable, efficient operation. Keywords: Varem membrane, replacement membrane 200L, expansion vessel spare part, pressure tank diaphragm, EPDM membrane, butyl membrane, hydropneumatic system repair.