Valve Sizing Tool

HORNE 40 Thermostatic Mixing Valve Dead leg version


Including check valves with inlet connections male screwed 1 1/2 inch B.S.P. (DN40) and outlet connection female tapped 1 1/2 inch B.S.P. (DN40) with dial thermometer. Ranges of temperature adjustment available:

  • 15°C to 32°C
  • 32°C to 52°C
  • 45°C to 62°C
  • 58°C to 80°C

In bronze finish. Product Reference H40-DL as per drawing D9348. To be installed according to the manufacturer's instructions and commissioned in accordance with water regulations and bylaws.

Designed and manufactured by Horne Engineering Ltd.

Enquire about this product.


  • Thermostatic mixing valve to supply groups of taps or showers where large flow rates required.  For sizing a TMV for group mixing applications use our simple Valve Sizing Tool
  • domestic hot water supplies from large combination boilers
  • hot water for process applications


  • Highly accurate temperature control across full range of flow rates
  • Robust and reliable
  • Ease of maintenance
  • Patented design: high flow - low flow functionality 

Standards and Approvals

  • Compliant with UK Water Regulation 4; non-metallic materials in contact with potable water
  • All HORNE products are manufactured under our Quality Management System to BS EN ISO 9001:2015. Certificate No. FM 01224

Useful Documents

Related Products

Recent Installations

  • ACV Boilers (OEM)
  • Avalon Farm Butchery
  • Hughes Safety Showers
  • Leeway Safe Houses, Norwich
  • St. Lawrence School, Horncastle
  • Unite Student Housing, London

Get in touch

friendly advice on applications and product selection, technical questions to pricing

Call us: +44 (0) 1505 321455

Contact Horne