Hewitech - Model VNC 20 -Trickle Fill Grid

High-performance trickle fill installations are characterised by their high mechanical strength.

This strength is determined by two special factors, on the one hand by the mechanical and extremely stable connection technology of the single grid and on the other hand by the specially developed material composition of the injected single grid.

This new  VNC 20 set leading standards for cooling tower application due to its combined diagonal (NC) and vertical (VC) grid shape in one block. Beside achieving a very good cooling performance including optimal pressure drop loss, you are also able to created almost each combination variation of both grid shapes to design requested technical demands. Particular attention is paid to environmental compatibility (solvent-free), simple and fast mechanical processing by means of patented assembly technology.

In addition, every local fire protection requirement is strictly adhered to.

The machines which we developed for processing single lattices are suitable for permanent use as well as for deployment on construction sites under weather protected conditions.

Due to the open vertical-offset grid structure with a free volume of > 97%, these trickle fill installations are particularly suitable for contaminated as well as highly polluted water quality.

Areas of application are cooling towers, agricultural and highly complex mass transfer applications.

• Optimised heat and mass transfer
  Open cross structure generates high turbulence and consequently performance
   
• High mechanical stability and high load bearing capacity.
  Permanent connection points and wall strengths ensure accessibility
   
• High durability
  Use of age-resistant, effective materials
   
• Complies with the highest fire protection regulations
  Own formula using highly effective additives

• Standard dimensions: 910 x 600 x H: 450 (Length Width Height)  Different dimensions are available upon request
• Channel opening: 2 x 20 (simple wave height 20 mm)
• Effective surface area: ~125 m²/m³
• Channel structure: combined diagonal and vertical grid shape
• Material: Polypropylene (PP)
• Operating temperatures:  < 75° C - constant - , max 80° C - short term - (measured water discharge at the distribution pipe )
• Free volume: > 97 %
• Flammability rating: ASTM E 84, UL 94, DIN 4102-B2