Flamco - 500 Ltr - Airfix P Expansion Vessel - Potable Water

The Flamco - 500 Ltr - Airfix P Expansion Vessel - Potable Water is a pressure vessel designed to support pressure stability within the system and reduce rapid cycling.

It is built to help protect connected equipment and smooth system operation while giving installers and end users a practical, dependable solution for the application.

Built for sealed potable hot and chilled water systems in domestic and commercial settings, these Potable Water Expansion Vessels stabilise pressure by absorbing thermal expansion for safe, reliable operation.

A nitrogen pre-charge helps retain set pressure longer, while a single threaded steel connection with plastic insert provides a durable, non-flow-through design. Suitable for central heating, cooling and tap water applications (not for solar collector circuits).

• Nitrogen gas filling for longer pre-charge retention
• Single threaded steel connection with plastic insert (no flow-through)
• Potable use supports domestic hot/chilled water
• Heating & cooling compatible for sealed systems

Designed for long service life with broad operating limits and glycol tolerance for demanding installations.

Key Product Features

• Applications: central heating, cooling and tap water (potable)
• Exclusions: not suitable for solar collector circuits
• Pre-charge medium: nitrogen for improved pressure stability
• Connection: single threaded steel with plastic insert; non-flow-through
• Working pressure: max 10.0 Bar
• Bladder temperature range:−10 / 100 C
• System media: compatible with glycol-based anti-freeze up to 50%

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.