Installation Guide
nVent.com/RAYCHEM
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Refer to design specification for spiral pitch
Mark the pipe at the spiral pitch or use a simple length gauge
Fix the heating cable as installation progresses
Thermally insulate and weatherproof to specification
3.5 Cutting the heating cable
• Cut the heating cable to length after it is attached to the
pipe. Before cutting it, confirm the tracing allowance as per
Sections 3.3 and 3.6.
• nVent RAYCHEM heating cable can be cut to length without
affecting the heat output per metre.
3.6 Typical installation details
• Typical installation details for fixing heating cable to pipe
fittings are shown hereafter.
General notes:
• Trace pipe fittings as shown to allow easy maintenance.
• Consult the design specification or nVent product literature
or TraceCalc software for the tracing requirements for
fittings and supports.
• Follow the recommendations for cutting and stripping
heating cables; they are included in the component
installation instructions.
3.6.1 Valve
Figure 3
Theheatingcablecongurationwill
vary for different valve shapes and
heating cable lengths.
Heating cable
Glass tape
Valve body
Pipe
• Refer to design specification for additional heating
cable length.
• Fix with self-adhesive glass cloth tape.
• Thermally insulate and weatherproof to specification
(including valve stem).