The ESI 3 port motorized mid-position valve is high quality, reliable zone valve that is excellent value for money and equipped with a brass body and steel actuator head.

• A direct replacement for other popular models
• Quick release actuator head for easy of service and replacement over time
• Manual lever for filling and draining the system saving time and money during system maintenance
• Replacement actuator head and motor available and easy to exchange with other popular versions
• Quiet operation and minimum power usage saving energy costs
• Industry standard wiring allowing quick and simple replacement for other popular brands
• Spring return action
• Easy to use and quick to install
• Easy-fit motorised zone valves