• Fits Danfoss 2 port valves (22mm and 28mm) only. Direct replacement for Danfoss 2 port valve bodies with two screw fixings; will not fit push-on or clip-type valve bases without adaptation. This product is not compatible with Honeywell V4043H1056 Always check your valve type before purchase
• 4-wire actuator head: Supplied with brown (live), blue (neutral), grey and orange (switched live) wires for straightforward wiring in S-plan and other standard heating systems. No earth wire required; detailed instructions included
• Quick and easy installation: No need to drain the heating system. Simply unscrew your old head and fit the new one in minutes using the supplied screws and pre-stripped cable ends. Designed for both professional and DIY use
• Manual lever and auxiliary switch: Integrated manual override lever enables easy system filling and troubleshooting. Built-in auxiliary microswitch ensures correct boiler and pump operation once valve is open
• Built for reliability and long life: Genuine Danfoss HPA2 actuator features durable spring-return mechanism and robust internals. Regular system checks and proper installation help maximise actuator lifespan
• Prevents heating faults and constant boiler running: Common solution for heating stuck on or boiler turn off faults caused by a failed actuator head. If issues persist, check valve spindle moves freely and wiring matches instructions

• Fits Danfoss 2 port valves (22mm and 28mm) only. Direct replacement for Danfoss 2 port valve bodies with two screw fixings; will not fit push-on or clip-type valve bases without adaptation. This product is not compatible with Honeywell V4043H1056 Always check your valve type before purchase
• 4-wire actuator head: Supplied with brown (live), blue (neutral), grey and orange (switched live) wires for straightforward wiring in S-plan and other standard heating systems. No earth wire required; detailed instructions included
• Quick and easy installation: No need to drain the heating system. Simply unscrew your old head and fit the new one in minutes using the supplied screws and pre-stripped cable ends. Designed for both professional and DIY use
• Manual lever and auxiliary switch: Integrated manual override lever enables easy system filling and troubleshooting. Built-in auxiliary microswitch ensures correct boiler and pump operation once valve is open
• Built for reliability and long life: Genuine Danfoss HPA2 actuator features durable spring-return mechanism and robust internals. Regular system checks and proper installation help maximise actuator lifespan
• Prevents heating faults and constant boiler running: Common solution for heating stuck on or boiler turn off faults caused by a failed actuator head. If issues persist, check valve spindle moves freely and wiring matches instructions

The Danfoss HPA2 Valve Actuator Head 230V is a high-quality, genuine replacement motorised head designed for Danfoss 2 port central heating zone valves, including 22 mm and 28 mm models. With its standard two-screw mounting, this actuator head offers a fast, straightforward swap with 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 brown (live), blue (neutral), grey, and orange (switched live. This makes installation easy whether you are 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, 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 Danfoss 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, We're committed to providing expert support