i-therm Straight TRVs



The inta i-therm thermostatic radiator valves are designed to be fitted in any orientation and with water flowing in either direction. Inta recommends that good working practice dictates that an automatic by pass valve be fitted to central heating systems that incorporate thermostatic radiator valves to prevent the pump pumping against a closed head as the valves begin to shut as the system gets to temperature.

Inta i-therm thermostatic radiator valves are available in 8, 10 & 15mm variants making them suitable for a wide range of systems. With a choice of both white and chrome heads, i-therm thermostatic radiator valves will be unobtrusive wherever they’re specified. Clever product design ensures that the i-therm adjustable thermostatic head doesn’t collect and retain dust and dirt ensuring that it will continue to operate efficiently, and consistently, for years to come.

  • Class I efficient thermostatic radiator valve (white head only)
  • Keymark approved to EN 215 (white head only)
  • Liquid filled sensor
  • Control range 0 – 30°C
  • Anti dirt trap minimalistic design
  • Frost protection setting
  • Anti chatter cartridge
  • Fully bi-directional
  • Available in white and chrome
  • Maximum working pressure 10 Bar
  • Maximum flow temperature 110°C

Additional information

Additional information


EN 215:2019


Radiator Valve

Product Range

15mm Straight Thermostatic Radiator Valve15TRVS
15mm Straight Thermostatic Radiator Valve with Lockshield.15TWINS.1
15mm Chrome Straight Thermostatic Radiator Valve15TRVSCP
15mm Chrome Straight Thermostatic Radiator Valve with Lockshield15TWINSCP