What Is The Best Temperature For Hot Melt Tubing?
May 08, 2026
The optimal temperature for heat fusion pipes is typically between 260℃ and 280℃, but the specific temperature needs to be adjusted based on the pipe type and manufacturer's recommendations.
Heat fusion pipe connection is a common process in pipe installation. Its core principle is to melt the surfaces of the pipes and fittings through heating, then quickly butt-jointing them to form a strong connection. Temperature control is a key technical parameter:
Temperature Range Basis:
For PPR pipes: Recommended 260±10℃. Below 250℃, fusion may be insufficient; above 290℃, material degradation is likely.
PE pipes: Typically require 220-240℃ due to the material's lower melting point.
Professional underfloor heating pipes (such as PERT): Must strictly adhere to the manufacturer's specified temperature (commonly 235-255℃).
Temperature Influencing Factors:
Ambient temperature: Increase by 5-10℃ in winter to compensate for heat loss.
Pipe wall thickness: Thick-walled pipes require extended heating time rather than increased temperature.
Altitude: For every 1000 meters increase in altitude, the fusion temperature should decrease by 3-5℃.
