Modular Vertical Tube Furnace - GVA / GVC

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The tube furnace range GVA (single zone) / GVC (three zone) uses free radiating wire elements embedded within the insulation of the furnace body. The benefit of this design is its flexibility;􀀞 with the use of tube adapters the same furnace can be used with a variety of tube diameters.

The extended uniform zone in the mid-section of the work tube in the GVC 3-zone furnace is achieved with the use of end zone controllers which track the centre zone temperature and compensate for the loss of heat from the tube ends.

This tube furnace range does not include an integral work tube and one must be selected as an additional item. The work tube length is dependent on the application, for example, for use with modified atmosphere or vacuum. The use of a separate work tube has the advantage of protecting the heating elements from damage or contamination.

Standard features

  • 1200°C maximum operating temperature
  • Carbolite Gero 301 controller, with single ramp to set-point & process timer
  • Accepts work tubes with outer diameter up to 170 mm
  • Heated lengths, single zone 300, 450, 600, 750, 900, 1050 or 1200 mm (GVA)
  • Heated lengths, 3-zone 450, 600, 750, 900, 1050 or 1200 mm (GVC)
  • Long life, rapid heating, resistance wire elements mounted in rigid, vacuum formed insulation modules
  • End zones 150 mm long on each end (GVC)
  • End zone control via back to back thermocouples (GVC)
  • Supplied with versatile stand for vertical, wall mounted and horizontal use
  • Control module with 2 metre conduit to furnace

Options (specify these at time of order)

  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
  • Over-temperature protection (recommended to protect valuable contents & for unattended operation)
  • A range of additional work tubes and end seals or work tube packages are available
  • Wide choice of tube diameters and materials is available: eg quartz, ceramic, metal
  • Available without stand (comprising control module & furnace body)
  • Insulation plugs & radiation shields to prevent heat loss & improve uniformity
  • End zones 300 mm long (GVC)
  • Modified atmosphere and vacuum assemblies are available
  • Control module on longer 6 metre conduit (GVC)
  • Retransmission of Setpoint control configuration to facilitate programmed cooling

Control Options

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