• Caleffi 481600 1" Thermostatic Radiator Valve
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Caleffi 481600 Straight Iron Thermostatic Valve Ø 1" DN 25

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The Caleffi 481600 is a straight-pattern thermostatic radiator valve (TRV) designed for use on iron and steel pipe heating systems. Built to Caleffi's industry-leading quality standards, it provides precise flow control to individual radiators, helping to maintain comfortable room temperatures and improve overall system efficiency.

  • Type: Straight thermostatic radiator valve
  • Connection: 1" (DN 25)
  • Thread standard: ISO 228 (BSP)
  • Body material: Nickel-plated brass
  • Compatible systems: Iron/steel pipe central heating
  • Temperature range: 6–28°C (with thermostatic head)
  • Max working pressure: 10 bar
  • Max working temperature: 120°C (valve body without head)
  • Flow medium: Hot water heating systems

Supplied as valve body only. Compatible with Caleffi thermostatic heads and lockshields from the 400 series range.

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