- Prevents water from freezing in metal or plastic pipes
- Avoids the cost and inconvenience of burst pipes
- Self-regulating technology and recommended thermostat control ensures lowest possible running costs
Range & Prices
The prices shown are list prices and perfectly safe to use for budget purposes. Contact your electrical wholesaler for final prices.
|CRJM-11||11W/m self-regulating cable (supplied by the metre)||£7.00/m|
|CRJM-17||17W/m self-regulating cable (supplied by the metre)||£8.00/m|
|CRJ-25||25W/m self-regulating cable (supplied by the metre)||£15.00/m|
|CRJ-T1||Termination kit (one required per circuit)||£11.00|
|CRJ-S||Splice kit (one required per splice or T joint)||£10.00|
|PF-L||Caution label (10 pack)||£5.00|
|PF-T||Fixing tape 33m x 19mm||£2.00|
|AL-50||Aluminium tape 45m x 50mm (for use with plastic pipes)||£10.00|
|FST2-IN||Frost Thermostat 20A for indoor use||£68.00|
|FST2-EX||Frost Thermostat 20A for outdoor use||£129.00|
- Supplied by the metre
- Self-regulating technology prevents energy waste and reduces running costs
- Cable can be double wrapped without creating ‘hotspots’
- Electrical connections are made at one end only
- Cable can be cut to length with affecting watts per metre output
|Nominal output at 5°C:||11W/m||17W/m||25W/m|
|Minimum installation temperature:||-40°C||-40°C||-40°C|
|Maximum exposure temperature (power on):||65°C||65°C||85°C|
|Maximum exposure temperature (power off):||85°C||85°C||85°C|
|Minimum bending radius:||20mm||20mm||35mm|
|Maximum circuit length:||128m||102m||124m|
- Tin coated copper bus wires
- Self-regulating polymer
- Thermoplastic insulation
- Continuous metal earth braid
- UV resistant thermoplastic overjacket
Maximum length (m) against breaker size (use type C breaker)
If you would like the experts at BN Thermic to select a pipe freeze protection system for you, please click below to access our enquiry form. Simply provide as much information as you have available and we will respond with a detailed proposal.
Use the following tables to select the correct output and length of cable for your application. Usually a single run of the appropriate output cable will suffice however in some circumstances the cable should be applied in an evenly spaced helix. Table one also indicates the thickness of insulation which should cover both pipe and heating cable.
Selection Table 1
Based on a minimum ambient temperature of -18°C and rock wool insulation
|Insulation Thickness (mm)|
|12||CRJM-11 Straight||CRJM-11 Straight||CRJM-11 Straight|
|25||CRJM-17 Straight||CRJM-11 Straight||CRJM-11 Straight|
|50||CRJ-17 1.6m cable/1m pipe
|CRJM-11 Straight||CRJM-11 Straight|
|75||———————————-||CRJM-11 Straight||CRJM-11 Straight|
|100||———————————-||CRJM-17 Straight||CRJM-11 Straight|
|150||———————————-||CRJM-17 1.1m cable/1m pipe
Table two indicates the additional cable lengths required to offset the increased heat losses associated with flanges, valves and supports.
CRJ Selection Table Two (minimum ambient temperature -20°C)
|Additional cable length (m)|
|Pair of flanges||Valve||Support|
Selection of Ancillary items
One CRJ-T1 termination kit will be required per circuit. The kit includes the necessary crimps and shrink-on material to prepare one end of the cable for electrical connection and to effectively seal the far end. The kit also includes a nylon gland suitable for making a moisture tight seal into a suitable terminal enclosure.
One CRJ-S1 slice kit will be required for each splice or T joint. . The kit includes the necessary crimps and shrink-on material to join two lengths of cable and to effectively seal the far end.
PF-T fixing tape is supplied in 33m rolls and is ideal for fixing heating cable to the pipe. We recommend securing the cable at 200mm intervals.
When heating a plastic pipe, the pipe should be wrapped in aluminium tape before the heating cable is installed. AL-50 is supplied in 45m x 50mm rolls.
PF-L warning labels are supplied as a pack of 10 and should be fixed to the outside of the insulation at regular intervals.
To ensure maximum economy, the use of a frost thermostat is strongly recommended. Select from the FST2-IN for indoor installations and the FST2-EX for outdoor installation. Both thermostats can switch 20A (230V) directly.