The ELBI drukvat gecoat AC5 is a compact, coated accumulator (bladder/diaphragm pressure vessel) designed for domestic and light commercial booster pump and hydropneumatic systems. Built by ELBI, the AC5 model provides reliable pressure stabilization to reduce pump cycling (pump hunting), improve water delivery consistency and extend pump life. The small vertical 5‑litre capacity format makes it ideal for point-of-use boost applications, irrigation lines, and secondary potable water systems.

Key features & benefits

• Brand: ELBI — trusted manufacturer of pressure vessels and hydro‑pneumatic tanks.
• Model / SKU: AC5 / 022-551 (compact 5 Litre accumulator).
• Coated exterior finish for improved corrosion resistance and long life.
• Bladder/diaphragm separation ensures complete water/air separation for hygienic potable water applications.
• Reduces pump starts, smooths pressure fluctuations and lowers maintenance needs.
• Easy installation with standard pump/skid connections; suitable for booster pumps, domestic water systems and small irrigation.

Technical notes

The AC5 is part of ELBI’s AC/AF series of replaceable bladder accumulators and features a durable epoxy/paint coating and food‑grade bladder materials (EPDM/butyl variants depending on model series) suitable for potable water.

Compact, reliable and manufacturer-backed, the ELBI drukvat gecoat AC5 (022-551) is optimized for installers and homeowners who need a small, corrosion‑protected accumulator to stabilize pressure, reduce noise and extend pump life.