Water/liquid coil air heater/air preheater mainly uses steel-aluminum tube, stainless steel tube and copper tube as the main element for heat exchange. It adopts the extruded aluminum or expanded aluminum as fins, and takes the advantage of high thermal conductivity of aluminum to transfer the heat from hot water/liquid to air. High efficiency of heat transfer and compact structure are the main advantage of water/liquid heat exchanger.

1. Wuxi Quanbang Energy Technology Co., Ltd Add:, No.2 Taishan Rd, Wuxi, Jiangsu, P.R.C
tel: +86 510-81190812 fax: +86 510-85220178 Website: www.qbheatexchanger.com
Water/Liquid Air Heater Round Tube
1. General Information
Water/liquid coil air heater/air preheater mainly uses steel-aluminum tube, stainless steel
tube and copper tube as the main element for heat exchange. It adopts the extruded
aluminum or expanded aluminum as fins, and takes the advantage of high thermal
conductivity of aluminum to transfer the heat from hot water/liquid to air. High efficiency of
heat transfer and compact structure are the main advantage of water/liquid heat exchanger.
2. Field of Application
-feed drying
-cereals and oil processing
3. Specification
Heating source: hot water 70~90

2. Wuxi Quanbang Energy Technology Co., Ltd Add:, No.2 Taishan Rd, Wuxi, Jiangsu, P.R.C
tel: +86 510-81190812 fax: +86 510-85220178 Website: www.qbheatexchanger.com
Advantage:
- Good heat transfer performance
- Anti-corrosion: steel tube no direct contact with air
- Easy to clean, compact structure, large heat transfer area per unit
Parameters:
core tube material
Carbon
steel
Stainless
steel
Copper
tube arrangement staggered staggered staggered
core tube external
diameter
25 25 15.88
core tube wall thickness 3mm 2mm 0.75mm
tube/fin bond extruded extruded expanded
temperature range 20~90 20~90 20~90
fin material aluminum aluminum aluminum
fin height 12.5mm 12.5mm
fin thickness 0.4mm 0.4mm 0.4mm
fin spacing 3mm 3mm 3.2mm
4. Order Information
P/N Description: WH-RXYZ-N
Note: X should be replaced into S, CO or C
Y should be replaced into S, CO or A
Z should be replaced into EP, G or ET
N means the power needed
S-stainless steel
C-carbon steel
CO-copper
A-aluminum
EP-expanded
G-grooved in
ET-extruded