SpiroExpand MultiControl Modular (EMCM)
SpiroExpand MultiControl Modular (EMCM) – Modular Pressurisation for Large Systems
SpiroExpand MultiControl Modular (EMCM) is a modular expansion and pressurisation system designed for large heating, cooling, and air conditioning systems. It is intended to be combined with non-pressurised expansion vessels (safety valve 0.5 bar) and supports operating pressures up to 16 bar.
Available Configurations
- Solo: Single pump system designed for 100% of expansion flow.
- Duo: Dual pump system operating in parallel for higher expansion capacity.
- Maxi: Dual pump system with redundancy; one pump serves as backup.
- Twin option: Available for Duo and Maxi with dual overflow valves sized for 100% capacity.
Operating Pressure
EMCM systems are available with operating pressures up to 16 bar, allowing use in demanding large-scale applications.
Example: EMCM-D7-6.6 Twin refers to a DUO system with a maximum operating pressure of 6.6 bar and twin valve configuration.
Key Advantages
- Four potential-free signal contacts as standard (fault, warning, refill active, system active)
- Low-noise operation thanks to self-supporting and sound-insulated design
- Extended pressure range for broader applications
- Flexible integration with system connections on both sides
EMCM Features
- Pressurisation system range designed for large installations
- Ergonomically designed control panel
- Simple installation: position, connect, and start
- Full utilisation of expansion volume
- Constant pressure up to 16 bar
- Excellent control via mechanical overflow valve
- Compatible with non-pressurised expansion vessels
- Maximum expansion volume up to 50,000 liters
- Centrifugal pumps with one or two low-noise pressure maintenance pumps
Compliance
SpiroExpand MultiControl Modular systems comply with DIN EN 12828 and are designed for reliable expansion volume management and constant pressure maintenance in closed systems.
For assistance in selecting the appropriate EMCM system or for technical support, please contact our experts.

