The Reflex N 80 diaphragm expansion vessel is designed for sealed heating and cold water systems, providing reliable pressure control in closed-system installations.

The Altecnic Cimm PV2M 2 litre potable vessel is built to a high quality and specification.

The carbon steel construction has a durable grey powder coating and a synthetic rubber potable water membrane.

Commonly used on undersink water heater installations, these vessels are lightweight and durable and have the manufacturer backing of a 5 year warranty.

The Cimm PV2M Mini Potable Expansion Vessel - 2 Litre is a Expansion Vessel item.

The Reflex N 35 diaphragm expansion vessel is designed for sealed heating and cold water systems, providing dependable pressure control in closed-system installations.

The Elbi HS24 24 Litre Stainless Steel Pressure Vessel - 24 Litre - 8 bar. - Potable 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.

Built for sealed LPHW/CHW systems, this Flexcon M 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.

Zilmet Inox-Pro Stainless Steel Potable Expansion Vessel 10 Bar. - ¾ BSP - 12 Ltr

The Flamco Flofix is a Potable water expansion vessel, for use in domestic and commercial sealed chilled and hot water systems.

Nitrogen gas filling for longer retention of pre-pressure. This product is manufactured by Flamco. The thread of the system connection is uncoated, ensuring problem free connection.

Technical Specifications

The Flamco Flofix Expansion Vessel - 18Ltr - 10 bar. is a Expansion Vessel item.

The operating pressure of this is 10 bar.

The Reflex N 800 diaphragm expansion vessel is designed for sealed heating and cold water systems, providing reliable pressure control in closed-system installations.

The Refix DE 18 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 Mainsboost MB 100SV-1-22 features a nominal vessel size of 100 litres and a pressurised water holding capacity of approximately 55 litres.
Available in single, twin and triple vessel options, each pump is supplied with the new compact Mainsboost Monobloc 22/28mm Upstream Line-In Kit (ULK) as standard which significantly simplifies installation.
Constructed from an epoxy coated steel body and a highly durable virgin butyl diaphragm, all Mainsboost vessels are WRAS Approved and come with a 5 year warranty.

The Mainsboost MB 100SV-2-22 features a nominal vessel size of 2x100 litres and a pressurised water holding capacity of approximately 2x55 litres.
Each system is supplied with the new compact Mainsboost Monobloc 22/28mm Upstream Line-In Kit (ULK) as standard which significantly simplifies installation.
Constructed from an epoxy coated steel body and a highly durable virgin butyl diaphragm, all Mainsboost vessels are WRAS Approved and come with a 5 year warranty.

Mains Liquid Boosting Setup

The MAINSBOOST MB 130SV-1 is intended for 'direct on mains' systems (unvented hot water cylinders and combination boilers) where the incoming mains pressure is greater than 2.5 bar. but the flow is insufficient to meet demand.
MAINSBOOST vessel systems do not require an electrical supply and operate silently.

System cold water storage capacity can be expanded simply by adding one or more MAINSBOOST Add-on pumps as required. 
If the incoming mains water pressure is less than 2.5 bar., a MAINSBOOST Charger pump can be utilised in conjunction with the MAINSBOOST vessel system to boost pressure.

The MAINSBOOST MB 130SV-1 features a nominal vessel size of 130 litres and a pressurised cold water water storage capacity of approximately 72 litres.
Each pump is supplied with the unique compact MAINSBOOST Monobloc 22/28mm Upstream Kit (USK) as standard which significantly simplifies installation.

Constructed from an epoxy coated steel body and a highly durable virgin butyl diaphragm, all MAINSBOOST vessels are supplied with a 5 year warranty.

The 2 vessel Mainsboost 130 litre vertical steel 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.

Mains Liquid Boosting Setup

The MAINSBOOST MB 200SV-1 is intended for 'direct on mains' systems (unvented hot water cylinders and combination boilers) where the incoming mains pressure is greater than 2.5 bar. but the flow is insufficient to meet demand.
MAINSBOOST vessel systems do not require an electrical supply and operate silently.

System cold water storage capacity can be expanded simply by adding one or more MAINSBOOST Add-on pumps as required. 
If the incoming mains water pressure is less than 2.5 bar., a MAINSBOOST Charger pump can be utilised in conjunction with the MAINSBOOST vessel system to boost pressure.

The MAINSBOOST MB 200SV-1 features a nominal vessel size of 200 litres and a pressurised cold water water storage capacity of approximately 110 litres.
Each pump is supplied with the unique compact MAINSBOOST Monobloc 22/28mm Upstream Kit (USK) as standard which significantly simplifies installation.

Constructed from an epoxy coated steel body and a highly durable virgin butyl diaphragm, all MAINSBOOST vessels are supplied with a 5 year warranty.

The 2 vessel Mainsboost 200 litre vertical steel 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.

Designed for mains-fed potable and fresh water systems, the Flamco Airfix D Expansion Vessel is a full flow-through potable vessel that prevents stagnation and nuisance safety-valve discharge by absorbing thermal expansion.

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.

A synthetic flow-through insert and the supplied brass flow-dividing T-piece (3 R ¾") divert all connection flow through the vessel, continuously flushing it to inhibit bacterial growth. The butyl diaphragm is taste/odour neutral, while corrosion-resistant internal coatings protect both water and nitrogen sides. Each vessel is factory tested, nitrogen pre-charged for longer pre-pressure retention, and internationally approved.

• Flow-through operation constant refresh prevents tepid, stagnant water
• Protects safety devices reduces safety-valve lift and leakage risk
• Potable-safe butyl diaphragm adds no colour, odour or taste
• Efficient & hygienic no waste of potable water during operation
• Durability vessel halves coated before assembly; clamp ring protected
• Nitrogen pre-charge for better long-term pressure stability
• Includes: special brass flow-dividing T-piece (3 R ¾")
• Optional: Airfixcontrol for quick annual pre-charge checks