Compact, durable replacement membrane (diaphragm) designed for Varem pressure/expansion tanks with a capacity of approximately 5–8 litres. Engineered from high-quality synthetic rubber (butyl/suitable elastomer variants) for reliable performance in domestic and light commercial hydropneumatic systems. Ideal as a spare part for restoring pump cycle efficiency, reducing short-cycling, and maintaining steady water pressure in plumbing, irrigation and booster pump setups.

Key features

Fitment: Designed for Varem 5–8 L tanks (Intervarem / Solarvarem / similar models).

Material: Butyl/synthetic rubber diaphragm — resistant to aging and suitable for potable water systems when specified.

Durability: High operating temperature and pressure tolerance typical of Varem membranes (tested and manufactured to product standards).

Easy replacement: Supplied as a single spare membrane for quick swap without full tank replacement.

Common part codes referenced in trade listings: MB008S2P00000000 / 0920580 (cross-reference supplier listings for exact match).

Why choose this membrane?

Replacing an aged or damaged membrane restores tank air/water separation, improves pump longevity, and stabilizes system pressure. This membrane is optimized for compatibility with Varem expansion vessels and typical household pump installations. When installing, verify flange diameter and pre-charge specifications to ensure correct fit and pressure settings. Keywords for search and SEO relevance: Varem membrane 5-8 L, replacement diaphragm, expansion tank membrane, butyl bladder, hydro-pneumatic tank spare part, pump pressure tank membrane, Intervarem replacement.