LavaPlumb LavaTap – Danfoss HPA2 Valve Actuator Head 230V – Replacement 2-Port Motorised Valve Head for 22mm and 28mm Valves – 4-Wire Central Heating Actuator – Compatible with HP22/HP28 2 Port Valve Bodies

The LavaTap HPA2 Valve Actuator Head 230V is a high-quality, genuine replacement motorised head designed for HV22/28 2 port central heating zone valves, including 22mm and 28mm models. With its standard two-screw mounting, this actuator head offers a fast, straightforward swap and no plumbing or system drain-down required. Wide compatibility: The HPA2 actuator head fits Danfoss 2 port valves such as HPV22, HPV28, and similar models using screw-on heads. It is supplied with a pre-attached 1-metre 4-core cable and brown (live), blue (neutral), grey, and orange (switched live). This makes installation easy whether you're a professional or a DIY homeowner. Note: For older or non-standard valves, always check compatibility before purchase. Installer-focused design: Quick to install, the HPA2 actuator is a dry replacement and simply isolate the power, unscrew your old head, attach the new one, and wire in matching colours. No draining or pipework required. The actuator includes a manual lever for filling, system testing, and manual override, plus a built-in auxiliary microswitch to signal your boiler and pump only when the valve is open. Reliable operation: Trusted by heating engineers and thousands of UK homeowners, the HPA2 actuator head restores full control to your heating system, eliminating common faults like constant boiler or pump running. Its robust spring-return mechanism and proven Danfoss engineering ensure dependable, quiet operation for years. For best results, always ensure your valve spindle moves freely—stiff or seized valves may cause repeated actuator failures. Reduce returns and avoid confusion: This product is for use with Danfos 2 port valve bodies only; it will not fit push-fit, clip-on, or non-Danfoss bases without modification. It is a 4-wire head with no earth wire. Full wiring instructions are included, and LavaTap provides friendly UK-based support if you need advice during installation. Buy with confidence from LavaTap: Every HPA2 actuator head is supplied in Danfoss original packaging with clear instructions. We're committed to providing expert support and fast answers to your installation or compatibility questions.