4 RPM Replacement Universal Synchronous Synchron Motor For Honeywell or Drayton Motorised Valves TC-SYN

A good replacement with all required crimps and screws supplied. Works ok. Can't comment on longevity.

It works with an ESi valve, but only just. On the original motor, the spindle is longer than the cog and it sits in a little hole. On this valve, the spindle is flush with the cog and is also a bit tighter when mounted. This means the springs aren’t strong enough to return the valve. I got round this by loosening the mounting screws. It did the job, but it isn’t a perfect fit. The motor is good quality and works, so 5 stars.

I have needed to replace the motorised valve on my central heating system and this product is the same as the original one fitted. Once you are aware that this particular part has failed, it is a fairly straightforward process to replace it. All the parts are included in the box and because it’s Amazon arrived within three days. ALWAYS make sure that the electrical supply is properly turned off before you start!!

Item seems decent quality and did the job. For anyone fitting this to a Drayton ZA6 actuator like I have, there seemed to be slight variance in the build tolerances which meant there was some resistance in the mechanism causing the springs not to return. I got past this by loosening the two motor fixing screws until there was enough freedom on the springs - it meant the assembly wasn't quite as tight as before but still safe and adequate to fit back on the valve body.

Excellent product and cheaper than buying the complete valve.

It is not a universal fit, I had to file down the two fixing taps as they did not fit into the fixing recess's in the Danfoss HP2A motorised valve base and was preventing the drive gear of the motor meshing with the opener gear, after this was complete and assembled, I test ran the motor several times and it worked. Even with the extra adjustments required to this motor it still works out much cheaper than buying the complete valve assembly.

Fitted this to a Siemens DVA 2/5 Zone control valve. Two wires to connect to the existing ones using the supplied crimp 'top hats' . Fits perfectly well and worked straight away. Time will tell if it keeps going

Used to replace a Honeywell synchronous motor that worked intermittently. Easy to install since all the screws/connectors were provided.