The ELBI HM8 is a compact stainless steel hydro-pneumatic pressure vessel (drukvat) designed for booster pump systems, water pressure stabilization and potable water applications. Built by ELBI, a long-established manufacturer of accumulator and expansion tanks, this model delivers reliable draw-down performance with a replaceable EPDM/bladder membrane for extended service life.

• Brand: ELBI.
• Model family: HM series (8-litre class; often referenced alongside HX8 in distributor listings).
• SKU / Code: 022-641 (distributor code linked to the 8-litre stainless vertical accumulator).
• Material: Stainless steel body with corrosion-resistant finish and food-grade membrane options for potable water.
• Typical use: Booster pumps, domestic and light commercial pressure systems, well systems, and applications requiring pump hunting reduction and improved system stability.

Key technical highlights include an 8-litre nominal capacity (class HM/HX 8), main 1" connection options, replaceable EPDM bladder suitable for drinking water, and working pressure ratings commonly around 8 bar with safety margins to 10 bar depending on the exact sub-model. These features make the HM8/HX8 ideal as a compact expansion tank for point-of-use booster systems and small pressure boosting assemblies.