18 L Heating Expansion Vessel 3.5 bar 

The CIMM ERE CE 18 is a compact diaphragm expansion vessel for closed heating and cooling systems and ensures reliable pressure equalization in the system. With its 18-liter nominal volume, it is ideally suited for small to medium-sized heating systems in single-family homes, apartment buildings, and commercial properties. Basic Data Type: Diaphragm expansion vessel for heating and cooling, ERE CE series, red. Nominal volume: 18 liters. Application: Closed hot water heating systems and cooling circuits, not suitable for potable water. Manufacturer: CIMM, ERE CE series. Technical Specifications Maximum operating pressure: 3.5 bar. Factory pre-charge pressure: approx. 1.5 bar (gas cushion, to be adjusted to the system). Operating medium: Heating water or water-glycol mixture according to manufacturer's specifications. Design: Designed for typical heating applications in closed systems.

Dimensions and Design

• Height: approx. 395 mm.
• Diameter: approx. 285 mm.
• Connection: 3/4" thread for easy installation in the heating return line.
• Tank: Robust steel tank with external epoxy powder coating for corrosion protection.
• Dim: Fixed rubber membrane (non-replaceable), reliably separates water and gas.

Typical Features and Benefits

• CE-compliant design for modern heating systems.
• Compact design – ideal for use in confined boiler rooms.
• Reliable pressure equalization to protect the boiler, pipework, and Fittings.

Installation Instructions

• Adjust the vessel's pre-charge pressure to the static head of the system before installation (typically slightly above the static pressure at the vessel's location).
• Preferably install in the return line near the heat generator, together with a shut-off valve and safety group in accordance with applicable regulations (e.g., EN 12828).
• Use only in closed heating or cooling circuits; do not use in potable water systems.