MEIBES BASEFLEX Heating Expansion Vessel 25 L, 1.5/6 bar, Red — Art. 25303

Description

The MEIBES BASEFLEX art. 25303 (Flamco BASEFLEX 25/1.5) is a 25-litre pressurised membrane expansion vessel for sealed central heating and chilled-water installations. The welded steel shell carries a red epoxy powder coating (RAL 3002) and houses an EPDM diaphragm that separates the pre-charged nitrogen cushion from system water, preventing corrosive contact with the steel interior.

Factory pre-charge pressure is 1.5 bar; maximum working pressure is 6 bar; maximum system temperature is 120 °C. System connection is G 3/4″ male thread. Compatible with glycol-based antifreeze up to 50 % and ethanol-based antifreeze up to 30 %. Manufactured and tested to EN 13831 and Pressure Equipment Directive 2014/68/EU. Diameter 290 mm, weight approximately 4.2 kg. Flamco and Meibes are sister brands within Aalberts HFC; this product is sold under both names across European markets.