Drayton TRV4 Sensing Head 0707007 Product Code: 8502R

White. Replacement sensing head for Drayton TRV4 wth fast-reacting liquid sensor. Includes range limiting pin.


  • Brass, Steel & Plastic Construction
  • Fits all TRVs with M30 x 1.5mm Fitting
  • A-Rated for Energy Efficiency
  • Frost Position
  • Liquid Sensor


Fixings Not Required.Temperature range: 10-30°C.
Additional Information
Technical Specification
  • Brand : Drayton
  • Construction Material (Plumbing) : Brass, Steel & Plastic
  • Fixings Supplied : Fixings Not Required
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


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€20.45 Incl. 23% VAT

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Drayton TRV4 Sensing Head 0707007 is rated 4.3 out of 5 by 9.
Rated 3 out of 5 by from Good but reliability issue The only problem is that the plastic inside the screw fitting where it meets the radiator pipe quickly gets brittle and fails. The TVR then leans over and doesn't work. It happens within 2-years in my experience. I have a house with 8 radiators and I buy 3 of these every year. Not really many alternatives?
Date published: 2019-05-11
Rated 5 out of 5 by from done in ten simple to use replaced old valves very quickly and a good price
Date published: 2019-02-27
Rated 5 out of 5 by from Simply the Best Trouble free replacement of broken TRV4 head, available for collection within minutes of ordering - absolutely brilliant!
Date published: 2019-02-25
Rated 4 out of 5 by from Strong TRV Feels stronger than most TRVs. My in-laws are very heavy handed and snap standard TRVs quite frequently. This one lasted 11 months, which is a record! Screwfix swapped in under warranty which was a bonus!
Date published: 2018-12-14
Rated 4 out of 5 by from Drayton TRV Good quality, easy fit in mins. Great service from Screwfix
Date published: 2018-02-14
Rated 4 out of 5 by from Great servce & does the job Easy to fit & does the job efficiently. Cheapest around
Date published: 2018-02-02
Rated 5 out of 5 by from Easy fix Easy fix, saved draining down and it was in stock.
Date published: 2018-01-08
Rated 5 out of 5 by from Trouble Free Thermostat I use the Drayton TRV4s on all my radiators. They have all been trouble free until the plastic eventually fails (after 20+ years). I then just buy the replacement head which simply screws on in place of the old head.
Date published: 2017-12-02
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