The 24V N.C. Thermal Actuator (2-Wire, M30 x 1.5) – Dan is a low-voltage electro-thermal motorized valve head engineered specifically for managing zone flow distribution across hydronic underfloor heating manifolds. Serving as a reliable physical bridge between your low-voltage control system and individual heating loops, this actuator dynamically opens and closes specific manifold ports in response to electronic signals from corresponding 24V room thermostats.
Operating on a safe, low-voltage 24V power supply, it features a Normally Closed (N.C.) mechanical configuration, ensuring the valve remains tightly shut via internal spring tension when unpowered to eliminate accidental bypass or energy loss. When activated, the high-torque internal thermal wax element expands cleanly and silently, driving the valve spindle down over a ~3 to 5-minute cycle to allow warm water into the floor circuit. Built with an industry-standard M30 x 1.5 threaded union fitting, it provides direct, secure mechanical compatibility for seamless new installations or quick low-voltage retrofit upgrades across major manifold brands.
Key Features & Benefits
- Safe 24V Low-Voltage Operation: Designed for integration with 24V wiring networks, providing an extra layer of safety and efficiency for low-voltage underfloor heating control configurations.
- Normally Closed (N.C.) Mechanism: Built with a safety-first spring closure that seals the manifold port tightly when unpowered, maximizing energy efficiency when a zone is inactive.
- Standard M30 x 1.5 Threading: Features a precision-machined M30 x 1.5 thread, ensuring broad multi-fit compatibility across major industry-standard manifolds for effortless mounting and replacement.
- Noiseless Wax Element Engine: Operates via a smooth-acting internal thermostatic wax expansion cylinder, completely removing mechanical gear or motor clicks within domestic living environments.
- Streamlined 2-Wire Connection: Equipped with a standard 2-wire electrical cable for quick, hassle-free integration directly into 24V underfloor heating master wiring centres and zone relays.
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DELIVERY OPTIONS:
We currently offer two shipping options to get your goods to you in a timeframe that suits:
Standard delivery to mainland UK (3-5 working days) – £9.99
Next working day delivery to mainland UK* – £11.99
*Next working day deliveries are subject to orders being placed before 1pm. The delivery window for next working day deliveries is between 8am and 5.30pm.
All orders received after 1pm on a Friday (including weekend orders), that have upgraded to next working day delivery, will be despatched on Monday for a Tuesday delivery.
Bank holidays are treated in the same way as a non-working day, so please take this additional delivery time into account when ordering.
Pallet Delivery
Next day pallet delivery to mainland UK – £72.00
Special delivery requirements
Can’t see what you’re looking for? If you require a delivery option that is not offered as standard on the website, please contact our team. Where possible we try to accommodate additional requirements, including timed delivery options and deliveries to non-mainland UK addresses.
Please note: We rely upon the services of third party couriers, and whilst we endeavour to always deliver in a timely manner there are unfortunately a few occasions when the couriers fail to deliver on the appointed day and before the specified time. Whilst this happens rarely, we cannot be held responsible for the late delivery of an item, or any costs incurred by customers’ tradespeople unable to work. Please ensure that you have your materials before booking in any trades. If your product has been delayed, we will do our best to keep you informed of any new estimated time and date of your delivery.
NEED HELP?
Our customer support team is here to help with any queries about your order and delivery requirements.
Email: customerservices@tradeunderfloor.co.uk
Call: 01283 850040
Monday to Friday | 8:30am – 4:30pm
