Rope Heaters

Cooperheat rope heaters can be wound onto pipe diameters between 152 mm and 508 mm. They provide an excellent and reliable means of preheating when positioned in each side of the weld joint to be welded.
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DESCRIPTION

Rope Heaters with a variety of length options, including 200mm cold tails at either end. Approx 13mm Dia.
The core of the element is stranded nickel-chromium wire insulated with porcelain beads and protected with a closely braided nickel chrome wire outer covering, which has an even heat distribution along its surface eliminating any hot spots.

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Specifications

DiameterPower, kWVoltage, VLength, mm
131.3302530
131.8403400
132.7604670
133.6806340

Transformer core

  • Three phase, forced air cooled, class H, 50kVA
  • Primary winding connected in Delta
  • Secondary winding connected in Star
  • Auxiliary winding: 110V a.c. 3.3kVA single phase

Primary supply

  • Primary voltage: 380V, 415V, 440V
  • Primary current: 76A, 70A, 66A
  • Frequency: 50/60 Hz

Protection

  • Three phase 80A circuit breaker with shunt trip
  • Three primary core winding over temperature thermostats linked to circuit breaker shunt trip

Secondary outputs

  • Output: 32.5V – 0V – 32.5V (for 30V and 60V heating element operation)
  • Auxiliary outputs: Two 110V, 10A, 50/60Hz output sockets
  • Number of temperature controlled output channels: 6 channels
  • Maximum load per output channel: 8.1kW (e.g. three 60V, 2.7kW heating elements)
  • Maximum current per output channel: 135A

Switching

  • Six double pole, 180A, contractors with 110V a.c. coil

Temperature control

  • Temperature measurement, display and control
  • Degrees Fahrenheit or Degrees Centigrade
  • Start temperature
  • Temperature ramp up and down in degrees per hour
  • Hold/soak temperature set point and hold/soak time period setting

Temperature recording

  • Ambient temperature: Minus 0˚C to 50˚C
  • Humidity: 20% to 80% RH, non-condensing is required (temperature x humidity < 3200)
  • Environmental protection: IEC IPSO (front door of panel mounted unit)
  • Input points: 12 Points
  • Input thermocouple types: Thermocouple inputs- K,
  • Reference range: Type K: -200˚C to 1370˚C (-326˚F to 249˚F)
  • Printing system: Ink jet system, 6 colour
  • Chart Width: 180mm
  • Chart Length: Z fold 20m
  • Chart Speed: 5 to 300mm per hour

Construction

  • Case: 304 Stainless Steel case fitted with four 150mm nylon wheels

Dimensions

  • Weight: 355kg
  • Case Dimensions:
    Height: 1545mm
    Width: 680mm
    Depth: 665mm

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