Purpose-built thermal storage for heat pumps and sealed heating circuits, the Flextherm PS Buffer Vessel stores heated water to stabilise flow, smooth demand and reduce compressor cycling.

A floor-standing steel tank with 90° opposed connections lets you tuck the vessel neatly into a corner for a smaller plantroom footprint. Models up to 2000 Ltrs include height-adjustable feet for accurate levelling, and there are 4 × G½" temperature sensor ports for precise control. Multiple buffers can be connected in series or parallel for higher volume.

For cooling applications that require factory insulation, specify the Flextherm PSK variant. Alternative connections, capacities and operating pressures are available on request.

Built for closed chilled-water circuits, this flanged buffer vessel adds stable thermal mass to improve control and flow in cooling installations.

Installation is straightforward thanks to height-adjustable feet for precise levelling and large flange connections that accommodate high circulation rates. Three G½" temperature-sensor ports simplify monitoring and integration.

• High-flow ready via oversized flange tappings
• Fast, accurate setup with adjustable feet
• Service-friendly robust construction; easy to assemble
• Instrumentation — 3 × G½" sensor connections

Insulation for the Flextherm PS-K 2000.

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.

Flamco - 1000 Ltr - Contraflex Expansion Vessel - 6 Bar

This is a Spares/Kit item, please get in touch for product compatibility.

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.

Built for sealed LPHW/CHW systems, this Flexconsole Wall Mounting For Flexcon Expansion Vessel delivers reliable performance with a tidy, installer'friendly form.

Engineered for day'to'day plantroom demands, it helps maintain stable operation, protects equipment, and simplifies maintenance.

• Reliable absorption of system expansion
• Factory pre-charge for quick commissioning
• Durable diaphragm construction

Pair with suitable isolation, safety devices and treatment to meet site requirements and best practice.

Built for sealed LPHW/CHW systems, this Airfix Expansion Vessel delivers reliable performance with a tidy, installer'friendly form.

For use in potable water, or fresh-water installations.

The Airfix D expansion vessels operate in such a way that the water flows right through and they are continuously flushed with fresh water from the mains.

This prevents tepid, stagnant water from collecting in the vessel in which bacterial growth could occur.

Therefore, users can be assured of high quality potable water.

Applying an Airfix D expansion vessel to a water heater prevents the opening of the safety group or safety valve each time the potable water is heated.

Engineered for day'to'day plantroom demands, it helps maintain stable operation, protects equipment, and simplifies maintenance.

• Reliable absorption of system expansion
• Factory pre-charge for quick commissioning
• Durable diaphragm construction

Pair with suitable isolation, safety devices and treatment to meet site requirements and best practice.

Built for sealed LPHW/CHW systems, this Flexcon Premium 12 Expansion Vessel delivers reliable performance with a tidy, installer'friendly form.

Engineered for day'to'day plantroom demands, it helps maintain stable operation, protects equipment, and simplifies maintenance.

• Reliable absorption of system expansion
• Factory pre-charge for quick commissioning
• Durable diaphragm construction

Pair with suitable isolation, safety devices and treatment to meet site requirements and best practice.

Developed for sealed LPHW/CHW systems, this Baseflex 35 Heating Expansion Vessel delivers reliable performance with a tidy, installer'friendly form.

Engineered for day'to'day plantroom demands, it helps maintain stable operation, protects equipment, and simplifies maintenance.

• Reliable absorption of system expansion
• Factory pre-charge for quick commissioning
• Durable diaphragm construction

Pair with suitable isolation, safety devices and treatment to meet site requirements and best practice.

Developed for sealed LPHW/CHW systems, this Baseflec 50 Heating Expansion Vessel delivers reliable performance with a tidy, installer'friendly form.

Engineered for day'to'day plantroom demands, it helps maintain stable operation, protects equipment, and simplifies maintenance.

• Reliable absorption of system expansion
• Factory pre-charge for quick commissioning
• Durable diaphragm construction

Pair with suitable isolation, safety devices and treatment to meet site requirements and best practice.

Developed for sealed LPHW/CHW systems, this Baseflex 80 Heating Expansion Vessel delivers reliable performance with a tidy, installer'friendly form.

Engineered for day'to'day plantroom demands, it helps maintain stable operation, protects equipment, and simplifies maintenance.

• Reliable absorption of system expansion
• Factory pre-charge for quick commissioning
• Durable diaphragm construction

Pair with suitable isolation, safety devices and treatment to meet site requirements and best practice.

The Lowara UK11A0000814 8 Litre Vertical Expansion Tank - 8 Litre - Carbon Steel is a Expansion Vessel item. This product is manufactured by Lowara.

The Refix DD 12 diaphragm expansion vessel is designed for flowed-through operation in domestic hot water systems, water supply installations and pressure-boosting systems.

The Refix DE 33 ST diaphragm expansion vessel is designed for water supply installations that are not subject to DIN 1988 requirements, making it suitable for specialist systems such as fire extinguishing installations, service water systems

The Refix DE 8 diaphragm expansion vessel is designed for water supply installations that are not subject to DIN 1988 requirements, making it suitable for specialist systems such as fire extinguishing installations, service water systems

The Refix DE 33 - 33Ltr diaphragm expansion vessel is designed for water supply installations that are not subject to DIN 1988 requirements, making it suitable for specialist systems such as fire extinguishing installations, service water systems

The Reflex NG 12 diaphragm expansion vessel is designed for sealed heating and cold water systems, providing reliable pressure control in closed-system installations.