The 2 vessel Mainsboost 100 litre vertical composite system with 22 mm connections are installed directly onto the incoming water supply and under mains pressure fills with water. When the chamber is full the pump reaches a state of pressure equilibrium. The Mainsboost system now has a volume of pressurised water ready for distribution throughout the property.

The Elbi AFV 200 Litre Vertical Accumulator Pressure Vessel - 200 Ltr - 10 bar. - Obsolete is a Pressure Vessel item. This product is manufactured by Elbi.

The accumulator vessel is a device that fitted into a pressurised water system will provide system water at a pre-set sustained pressure.

Its most common application is to supply systems in which the main supply pressure is too low and a pump is fitted to boost the pressure to an acceptable level.

As system demands take place the accumulator vessel will sustain system pressure by feeding additional water into the system at the required pressure.

This process will limit the number of times the pump needs to start (pump hunting) in order that system pressure remains at the optimal level.

The operating pressure of this is 10 bar.

The Flamco Airfix P DWH Expansion Vessel - 200 Litre - 2.7 bar. - Horizontal is a Expansion Vessel item.

The Refix DE 100 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 200 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 N 100 diaphragm expansion vessel is designed for sealed heating and cold water systems, providing reliable pressure control in closed-system installations.

The Reflex N 200 diaphragm expansion vessel is designed for sealed heating and cold water systems, providing reliable pressure control in closed-system installations.

Zilmet Ultra-Pro Vertical Expansion Vessel - 10 Bar. - 100Ltr Zilmet ULTRA‑PRO pressure vessels are designed for high‑performance potable water and booster systems where reliability and.

Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar. - 100Ltr Zilmet ULTRA‑PRO pressure vessels are designed for high‑performance potable water and booster systems where reliability and.

Zilmet Ultra-Pro Vertical Expansion Vessel - 16 Bar. - 100Ltr Zilmet ULTRA‑PRO pressure vessels are designed for high‑performance potable water and booster systems where reliability and.

Zilmet Ultra-Pro Horizontal Expansion Vessel - 10 Bar. - 200Ltr Zilmet ULTRA‑PRO pressure vessels are designed for high‑performance potable water and booster systems where reliability and.

Zilmet Ultra-Pro Vertical Expansion Vessel - 16 Bar. - 200Ltr Zilmet ULTRA‑PRO pressure vessels are designed for high‑performance potable water and booster systems where reliability and.

Zilmet Ultra Inox-Pro Vertical Stainless Steel Expansion Vessel - 10 Bar. - 100Ltr

Zilmet Hydro-Pro Vertical Expansion Vessel - 10 Bar. - 200Ltr Zilmet HYDRO‑PRO pressure vessels are designed for potable water and booster systems where stable pressure and efficient pump.

Zilmet Cal-Pro Vertical Expansion Vessel - 6 Bar. - 200Ltr Zilmet CAL‑PRO expansion vessels are designed for sealed heating systems to absorb thermal expansion as water temperature increases.

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 life 15-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.