Danfoss HS3 3 Port Motorised Valve Product Code: 30424

22mm compression connection. 4-wire installation. Interchangeable with other makes. Conforms to EN 60730.


  • 1m Cable Supplied
  • Max. 95°C Flow Temperature
  • Spring-Return Action
  • 4-Wire Installation
  • 1 Year Guarantee


3A. Power consumption: 6W.
Additional Information
Technical Specification
  • Brand : Danfoss
  • Product Type : Motorised Valve
  • Cable Length : 1 m
  • Model No : HS3
  • Connection Type : 22mm Compression
  • Pack Size : 1
  • Amp Rating : 3 A
  • Installation Type : 4-Wire Installation
  • Product Diameter : 22 mm
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

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€104.95 Incl. 20% VAT

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Danfoss HS3 3 Port Motorised Valve is rated 4.1 out of 5 by 13.
Rated 3 out of 5 by from Replacement valve This valve was on stock and ready for immediate pick up. The valve itself was purchased to replace a leaking valve and not for a new installation. The valve seats fail quite frequently, hence not very reliable.
Date published: 2017-09-04
Rated 5 out of 5 by from Good quality item Does what it says on the tin. Easy to fit, straight forward wiring diagrams, no issues and worked fine
Date published: 2017-02-02
Rated 4 out of 5 by from Replacement valve Usually the electrical head fails on these valves, this time however it was the mechanical divertor that had seized. Well packaged and used as a direct replacement no problems were encountered. Customer now has hot water and heating at the correct times! Obviously can't comment on reliability but the previous Danfoss lasted many years. When you consider what's been purchased I think all of these valves are expensive. However I have tried cheaper ones and they don't last.
Date published: 2016-01-27
Rated 5 out of 5 by from GOOD QUALITY REPLACEMENT Screwfix had this in stock unlike other local competitors. Maybe could have obtained slightly cheaper elsewhere but not quickly! Used it to replace defective unit that has been on oil combi boiler for 15 years. Note that actuator body has been replaced three times in last 8 years though! All in all good quality product well engineered straightforward to fit - and I will be nice and warm for Christmas.
Date published: 2015-12-24
Rated 5 out of 5 by from Great 3 port valve design Unlike other valves these do not have a rubber parts inside that swell up to get stuck or let water passed but a shoe that rotates to divert the water flow like a commercial valve Also a very easy to change electrical head with the screws on the outside
Date published: 2015-12-04
Rated 3 out of 5 by from Non standard compression nuts Just a warning so you don't find out the hard way like I did. The compression nuts are not your normal 22mm type, the thread on these is much finer pitch. I found out when I had to take them off while modifying my pipework. I used a standard 22mm nut which tightened up but I didn't notice until it sprung a leak when I refilled the system because of the different thread pitch. Whatever you do don't damage/ lose the original nuts! For that reason I can only give this product three stars.
Date published: 2014-12-17
Rated 4 out of 5 by from Danfoss This was a direct replacment for the one that had failed. The last one's warranty ran out back in 2007, so by my reckoning the unit lasted roughly nine years! Which hopefully the new one will do the same.
Date published: 2014-12-01
Rated 3 out of 5 by from Not reliable in the long term! I first fitted this valve to our central heating 20 years ago. It took 10 years for the electrical actuator to wear resulting in the unit failing to properly complete its activation... click, click, click, as the motor repeatedly tried to complete its task. Bought a new one and changed the electrical actuator only... but noted (when cold) that the valve spindle was weeping very slightly. The replacement electronic actuator has now failed with exactly the same problem... The valve spindle is leaking excessively so I have ordered another manufacturer's product in the hope that I won't have to attend to this matter again!
Date published: 2012-09-24
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