PWT box

The perfect insulation for plate heat exchangers
Field of application
Plate heat exchanger
Suitable for
Manufacturer and plant constructor

Overview

Like every other component of a heating system, the plate heat exchanger component should also be insulated. Plate heat exchangers radiate a lot of heat without insulation due to their large surface area and high operating temperature. Efficient insulation is therefore very important and significantly improves the efficiency of the heating system or district heating transfer station.

Our standard insulation for plate heat exchangers, the PHE boxes, are characterized by their ease of use and installation. They are reusable, do not need to be glued and allow access to the heat exchanger at any time.

We also offer solutions for heat exchanger insulation in the area of custom-made and individual products:

  • for screwed heat exchangers
  • for tube heat exchangers
  • Tailor-made insulation shells made of EPP (expanded polypropylene)
  • Condensation water protection made of PE (polyethylene)
  • Direct foaming (ideal for cold applications)
  • Pure polyurethane shells (without plastic coating)
  • Special colors

We would be happy to develop a joint concept with you.

Our standard insulation for brazed plate heat exchangers.

Series 09-23

For brazed plate heat exchangers with maximum external dimensions of 90 mm width and 230 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 09-31

For brazed plate heat exchangers with maximum external dimensions of 90 mm width and 315 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 09-35

For brazed plate heat exchangers with maximum external dimensions of 90 mm width and 360 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 09-47

For brazed plate heat exchangers with maximum external dimensions of 90 mm width and 475 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 13-18

For brazed plate heat exchangers with maximum external dimensions of 135 mm width and 185 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 13-31

For brazed plate heat exchangers with maximum external dimensions of 135 mm width and 315 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 13-38

For brazed plate heat exchangers with maximum external dimensions of 135 mm width and 385 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 13-54

For brazed plate heat exchangers with maximum external dimensions of 135 mm width and 545 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 13-65

For brazed plate heat exchangers with maximum external dimensions of 135 mm width and 650 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 20-47

For brazed plate heat exchangers with maximum external dimensions of 200 mm width and 470 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 20-65

For brazed plate heat exchangers with maximum external dimensions of 200 mm width and 650 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 28-54

For brazed plate heat exchangers with maximum external dimensions of 280 mm width and 545 mm height. The depth is selected to match the number of plates in the heat exchanger.

Series 32-81

For brazed plate heat exchangers with maximum external dimensions of 325 mm width and 820 mm height. The depth is selected to match the number of plates in the heat exchanger.

Technical data

Plastic jacket

Material Polystyrene PS (no PVC)
Fire protection class B1 according to DIN 4102
Color gray RAL7040
Strength 0.8mm to 3mm
Impact strength 50kJ/m3 at 23°C

PUR foam core

Material Rigid polyurethane foam
Fire protection class B2 according to DIN 4102 and E according to EN 13501-1
spec. Volume weight 55 – 60 kg/m3
Thermal conductivity 0.022 W/mK at 10°C according to EN 12667
0.025 W/mK at 40°C according to EN 12667
0.029 W/mK at 10°C according to EN 14308
0.032 W/mK at 40°C according to EN 14308
Application Heat up to +130°C

Measured values

Heat loss using the example of a Unex PBU20

Product catalog

Is the information not enough for you? You can view and download our product catalog online here.

GWK_Katalog