Cimm Mini Expansion Vessel for Potable Water - 2 Litres (510242/ISP)
Even a small system benefits from pressure control, and the Cimm Mini Expansion Vessel is built to absorb thermal expansion in space-constrained domestic and commercial drinking water installations — commonly fitted on undersink water heaters and similar compact setups where a full-size vessel won't fit.
Certified to PED 2014/68/UE and EN 13831, and independently confirmed as pre-charged to 3.5 bar with a maximum working pressure of 10 bar, the vessel uses a replaceable EPDM bladder that can be swapped out rather than replacing the whole unit if it fails. At just 240mm high and 120mm in diameter, it's designed to fit into tight plant spaces without compromising on WRAS-approved potable water safety.
Key Features & Benefits
Certified for Potable Use: WRAS approved for direct contact with drinking water.
Pre-Charged to 3.5 Bar: Adjustable on site before the vessel is filled with water.
Max Pressure: Safe up to 10 bar.
Replaceable EPDM Bladder: Allows the internal bladder to be serviced without replacing the vessel.
Compact Construction: 240mm high x 120mm diameter, suited to tight installation spaces.
Ideal For
Domestic and commercial drinking water systems.
Undersink water heater installations.
Booster sets and pressure-regulated systems.
Installations requiring thermal expansion protection in confined spaces.
Why Buy This Product?
Independently confirmed pre-charge and pressure figures give confidence this vessel performs as specified, not just as advertised. The replaceable EPDM bladder means a fault doesn't mean replacing the whole unit, and at 240 x 120mm it's one of the few WRAS-approved options that will actually fit in tight undersink or cupboard installations.
Order the Cimm Mini Expansion Vessel – 2 Litres online today.
Specification
Cimm Mini Expansion Vessel for Potable Water - 2 Litres Specification
Manufacturer
Cimm
Model
ACS 2
Standards
PED 2014/68/UE and EN 13831
Approvals
WRAS & ACS
Capacity
2 Litres
Dimensions (H x Diameter)
240 x 120mm
Connection
1/2" BSP Male
Pre-Loaded
Yes – Pre-Loaded to 3.5 Bar
Max Operating Pressure
10 Bar
Working Water Temperature
-10 to +100°C
Potable Water Use
Yes
Application
Hot and Cold Sanitary Water Circuits, Pressurising Systems, Heating Systems and Refrigeration Circuits
Product Type
Potable Water Expansion Vessel
Features
Cimm Mini Expansion Vessel for Potable Water - 2 Litres Features
Certified for Potable Use: WRAS approved for direct contact with drinking water.
Pre-Charged to 3.5 Bar: Adjustable on site before the vessel is filled with water.
Max Pressure: Safe up to 10 bar.
Replaceable EPDM Bladder: Allows the internal bladder to be serviced without replacing the vessel.
Compact Construction: 240mm high x 120mm diameter, suited to tight installation spaces.
