Technical data

Type GP Type GPF
Characteristics Cartridge heaters for most applications are marked by high quality, long service life and are attractively priced. GPF heaters are manufactured using superior materials, and stringent design and manufacture criteria ensure high quality for the most demanding applications, and enable very high surface load values, as well as high working temperature.
Sheath material stainless, steel, acid proof 1H18N9T steel alloy Incoloy 800
Resistance wire material nickel-chromium alloy, NiCr 80/20
Heater diameter metric: 6,5 8 10 12,5 14 16 18 20 24 26 mm
imperial: 1/4” 3/8” 1/2” 5/8” 3/4”
On special order, we can also manufacture heaters in the diameter range from D = 6.0 to D = 50 mm
metric: 6,5 8 10 12,5 14 16 18 20 25 mm
imperial: 1/4” 3/8” 1/2” 5/8” 3/4” 1”
Diameter tolerance Depending on the surface load (Pr), the diameter tolerance may vary:
For Pr ≤ 5 W/cm2 D+0,2
For Pr = 5 - 20 W/cm2 D -0,02-0,08
For Pr = 21 - 35 W/cm2 D -0,00-0,02
Heaters are polished to D-0,02-0,08
Length range from 20 to 1000 mm as per customer requirements Depending on the heater diameter, even up to 3500 mm at D = 25 mm
Length tolerance L ± 1,5% min 2,0 mm L ± 2,0% min 2,4 mm
Cold ends Lm1, Lm2 Depending on the heater diameter, the values are:
min. 4 - 8 mm rom the bottom end
min. 6 - 10 mm from the insulator end
min. 6 mm from the bottom end
min. 6 mm from the insulator end
Max. surface load 35 W/cm2 62 W/cm2
Heater wattage 20 – 3000 W +5-10[%] Up to 10kW +5-10[%]
Max. heater temperature 500ºC (measured on heater sheath) 870ºC (measured on heater sheath)
Supply voltage 12 ÷ 400 V 12 ÷ 400 V

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