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Circulation heater
Flange
ATEX
CE
  material:carbon steel, stainless steel
  size:3″、5″、6″、8″、10″、12″、14″、16″、18″or bigger
  Pressure degree:150、3001b ANSIB16.5/HG20592-97

Heating component
  Material:carbon steel, stainless steel and INCOLOY
  Watt density:1、2.3、3.5、7、11 W/cm2
  Tube Dia.:  8、10、12、16、20mm(Usually tube Dia. is 12 mm)

Others
  Immerging length 3m
  While the temperature is high,  there is  heat-dispelling area ixnside of juction box

Junction box
  Dampp-roof
  Explosion-proof ,Damp-proof

Selection and direction
The choice for parameter of the heater is according to technics terms, for example: flange, material of heater component, watt density. Reasonable choice not only could save the cost but also prolong the using life of the heater.
Following guide is convenient for the users to choose heater, while the last conformation need the calculation of the engineers. 
The choice of the heaters lie on following factor:
 
1. The density, viscosity, specific heat and causticity for heated medium 
2. Medium pollution of the heaters component
3.The anticorrosive and anti-oxidation of the heater component jackets
4. The watt density of the heater component surface, that is power ratings for unit area.
5. The highest surface temperature of the heater component, which is lie on the following items 1~4
Application
1
2
3
4
5
medium
or heating form
PH value
(chroma%)
Tube material
att density
(W/cm2
Recommended highest surface Temp.
Water or Ebb PH liquor
Rinsing
PH6~Ph8
Copper
7.00
180
Craft water
PH5~Ph9
2~3%
Passivation stainless steel
7.00
650
Ebb PH liquor
5~6%
INCOLOY
7.00
870
soft water
INCOLOY/Stainless steel flage
7.00
870
Causticity and hi-viscosity liquor
Causticity liquor
5~15%
Stainless steel
3.50
650
Mid-causticity liquor
10~25%
INCOLOY
3.50
650
Heavy causticity liquor
30~60%
INCOLOY/Stainless steel flage
2.30
870
Special used water
Steam boiler
INCOLOY/
Copper
870
Oil
Low viscosity oil
Carbon steel
3.50
400
Middle viscosity oil
Carbon steel
2.30
400
Hi-viscosity oil
Carbon steel
1.00
400
Oil storage
Lubricating oil
Carbon steel
2.30
400
Air and steam
Low Temp.
Stainless steel
3.50
650
High Temp.
INCOLOY
3.50
870

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