Small pressure fluctuations cause outsized wear on pipework and fittings over time, and the Cimm ACS CE 18 is built to keep that pressure stable in hot and cold sanitary water systems. At 18 litres, it's sized for domestic and small commercial installations — compact enough for tight plant spaces while still providing enough buffer to prevent pipe bursts and water hammer.
Certified to PED 2014/68/UE and EN 13831, and independently confirmed by the WRAS Approvals Directory as rated to 10 bar and 100°C, the vessel is pre-charged to 3.5 bar prior to installation. As with other vessels in the Cimm range, this pre-charge may need adjusting to suit site conditions — always with the vessel isolated from the system and before it's filled with water. It uses an interchangeable membrane design to reduce stress across repeated operational cycles, supporting a longer working life than a fixed diaphragm.
Independently confirmed against the WRAS Approvals Directory rather than just the manufacturer's own claims, this vessel's 10 bar/100°C rating gives confidence it's genuinely fit for potable water use in a compact domestic or small commercial system. Its interchangeable membrane is designed specifically to reduce wear across repeated pressure cycles, and its 18 litre footprint makes it a practical fit where plant space is limited.
Order the Cimm 18 Litre Potable Water Expansion Vessel online today.
| Manufacturer | Cimm |
|---|---|
| Model | ACS CE 18 |
| Standards | PED 2014/68/UE and EN 13831 |
| Approvals | WRAS & ACS |
| Capacity | 18 Litres |
| Dimensions (H x Diameter) | 420 x 260mm |
| Connection | 3/4" 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 – WRAS & ACS Approved |
| Application | Hot & Cold Water, Pressurising, Sanitary and Refrigeration Systems |
| Product Type | Potable Water Expansion Vessel |
