Product Features

Technical Data

Chemical Resistance of Plastics
PVDF – This material offers significant increases in operating temperatures up to 320°F (160°C), providing resistance to many aggressive chemicals where other plastics would fail.
Polypropylene (PP) – Able to withstand continuous working temperatures of up to 230°F 110°C. Suitable for contact with most chemicals used in the metal treatment industry.
High Density Polyethylene (HDPE) – Suitable for working conditions up to 176°F (80°C). HDPE is recommended for all external applications due to its enhanced resistance to freezing conditions. Black, UV stabilizing additives prevent the degrading effects of sunlight. HDPE is also recommended for demineralized water and Chromic acid applications.

Floating Ball Cover Diameter and Surface Coverage

The percentage of area covered by the floating ball cover is independent of the ball diameter, being the ratio of a circle to the hexagon which surrounds it. This equates to 91% of the liquid surface area. The frictional contact points ensure that each floating ball cover remains stable when subjected to increased liquid or air turbulence.  
Diameter (mm)Average weight (g)Number per ft²Number per m²
10 0.2 1,076 11,600
20 1.0 270 2,900
25 1.5 172 1,850
38 4.5 74 800
45 7.0 53 570
50 8.8 43 465
70 16.0 22 235
100 40.0 10 116
150 100.0 4.8 51.5
floating ball cover
Floating Ball Cover

Heat and Liquid Loss Savings

Open Surface1 layer 38mm balls2 layers38mm balls
Avg Surface Temperature °C907050907050907050
Energy consumption Kwh/h10.734.611.612.701.31.602.040.76.051
Percentage energy saving757165817670
Evaporation liters/m²h13.054.971.451.670.410.141.280.380.13
Percentage vaporation saving879190909291

*Test Tank Dimensions = 600mm(W) x 1850mm(L) x 1000mm(H).