The ELBI drukvat gecoat AC8 is an 8‑litre bladder accumulator / expansion vessel designed for domestic and light commercial booster sets, circulation and heating systems. It reduces pump cycling (pump hunting), stabilises system pressure and provides a reserve water volume to improve overall system efficiency and longevity.

• Capacity: 8 litres (AC8)
• Bladder type: replaceable EPDM food‑grade bladder (separates water and air)
• Surface: epoxy/paint coated steel shell for corrosion resistance
• Connection: standard 3/4" port for direct pump installation
• Working range: suitable for typical domestic temperatures and pressures listed for the AC series

Key technical features — the AC series uses a non‑toxic, replaceable bladder that prevents water contact with the inner tank surface and allows full expansion inside the vessel. The blue epoxy powder coating delivers enhanced atmospheric corrosion protection for wet environments and pump rooms. These construction choices extend service life and reduce maintenance.

Typical applications include booster pump systems, rainwater harvesting pressurisation, garden irrigation, closed heating circuits and small potable water pressurisation where rapid pressure recovery and pump protection are required. Installing an AC8 accumulator on the suction or delivery side of a booster set helps stabilise flow and reduces on/off cycles.

Benefits at a glance: quieter pump operation, extended pump life, reduced energy waste from short cycling, and improved pressure stability for taps and appliances. The compact vertical form factor makes the ELBI AC8 easy to mount close to the pump or within tight plantroom spaces.

For specification checks, compatibility, and precharge or installation guidance consult ELBI technical datasheets and authorised distributors. The AC8 (SKU 022‑552) is a straightforward, cost‑effective solution for enhancing small pressurisation and heating systems.