Flamco - 425 Ltr - Flexcon Premium Pressure Vessel - 6 bar

Built for sealed heating (EN 12828) and chilled-water systems, Flexcon Premium Expansion Vessels stabilise system pressure by absorbing thermal expansion so plant runs safely and efficiently.

A new TPO (thermoplastic polyolefin) diaphragm on 1235 Ltrs models delivers high flexibility and extremely low permeability, helping the pre-charge hold for longer. Lighter construction cuts material use and transport emissions; packaging is FSC-certified to reduce CO₂ impact.

• Sustainable design lighter TPO membrane uses up to 50% less material
• Long service life15-year warranty
• Low permeability pre-charge pressure maintained for longer
• Heating & cooling suitable for LPHW and CHW installations

Vessels comply with EN 13831 and the Pressure Equipment Directive 2014/68/EU. Red epoxy powder coating (RAL 3002). Flexcon Premium 3580 are supplied with feet and a mounting kit.

Key Product Features

• Applications: sealed heating (EN 12828) and chilled water systems
• Membrane: TPO plastic diaphragm on 1235 Ltrs models; high flexibility & low permeability
• Working pressure: max 6.0 Bar
• System temperature: max 110 C
• Diaphragm temperature:−10 / 90 C
• Media: suitable for glycol-based anti-freeze up to 50%
• Compliance: EN 13831; PED 2014/68/EU
• Finish: red epoxy powder coat (RAL 3002)
• Accessories: Flexcon Premium 3580 with feet and mounting kit
• Warranty:15 years
• Operating pressure: 6 Bar.

Flamco (est. 1956) is a Dutch manufacturer of HVAC and plumbing system components, including expansion vessels, air separators and pressurisation accessories. Their ranges are used in heating and chilled-water circuits and potable water systems across domestic and commercial installations.