The Cimm AFE CE 50 is a 50 litre potable water expansion vessel designed to absorb pressure fluctuations in sealed sanitary water systems, reducing the wear that repeated thermal expansion puts on pumps, pipework and fittings. It's WRAS and ACS approved for use with drinking water, so it's a straightforward specification for domestic and light commercial installations where potable water compliance needs to be provable.
Built to PED 2014/68/UE and EN 13831, the vessel is supplied pre-charged to 2.5 bar and rated to a maximum operating pressure of 10 bar, with a working temperature range of -10°C to +100°C — wide enough to cover hot and cold sanitary circuits from the same unit.
At 50 litres it sits between compact domestic vessels and the larger commercial sizes, making it a common choice for unvented cylinder installations and booster sets on mid-sized properties. It uses the AFE CE range's interchangeable EPDM membrane design with a Schrader valve for pre-charge adjustment — worth checking periodically rather than assuming the factory charge holds indefinitely, particularly on systems with frequent draw-off cycles.
The 50 litre capacity fills the gap between small domestic vessels and the larger commercial sizes, giving enough buffer to stop a pump short-cycling without over-specifying for a mid-sized property. WRAS and ACS approval means it's usable on potable installations without needing separate certification paperwork, and the -10°C to +100°C range covers hot and cold circuits with one vessel. The interchangeable membrane and accessible Schrader valve also make it serviceable long-term — the pre-charge can be checked and topped up rather than replacing the vessel outright.
Specify the Cimm AFE CE 50 for your next unvented cylinder or booster set installation — WRAS & ACS approved, pre-charged and ready to fit.
| Manufacturer | Cimm |
|---|---|
| Model | AFE CE 50 |
| Standards | PED 2014/68/UE and EN 13831 |
| Approvals | WRAS & ACS |
| Capacity | 50 Litres |
| Dimensions (H x Diameter) | 720 x 380mm |
| Connection | 1" BSP Male |
| Pre-Loaded | Yes – Pre-Loaded to 2.5 Bar |
| Max Operating Pressure | 10 Bar |
| Working Water Temperature | -10 to +100°C |
| Potable Water Use | Yes – WRAS & ACS Approved |
| Application | Hot and Cold Sanitary Water Circuits, Pressurising Systems, Heating Systems and Refrigeration Circuits |
| Product Type | Potable Water Expansion Vessel |
