FT Filter Driers

Filter driers are equipped with replaceable adsorption filters to protect refrigeration and air conditioning systems from moisture, dirt, acids, oil decomposition products and sludge sediments.

AWP filter driers are equipped with filter blocks designed for easy replacement. The blocks are held in position by the filter carrier which also acts as a strainer. The liquid refrigerant enters the filter through the side entry and flows through the filter blocks and the filter carrier strainer. The filter blocks consist of an adsorption mass based on molecular sieve aluminium oxide. AWP filter driers are designed for use in the pipes of refrigeration and air conditioning systems with fluorinated refrigerants and also as a cleaning drier on the suction side. They can be installed in systems that operate within output ranges from 35 to 465 kW and protect the system from moisture, dirt, acids, oil decomposition products and sludge sediments. The dimensions of the filter blocks comply with international standards.

Technical Features

  • Available in steel or stainless steel
  • Selection of body material as per German DIN EN12284, AD2000 Series W
  • Working mediums: liquid refrigerant, no NH3
  • Mesh width of strainer / filter carrier (μm): 125
  • Optimum filter surface (zeolithic molecular sieves)
  • No danger of plugging
  • Minimal pressure loss
  • Particle retaining power > 32 μm
  • No abrasion from the filter block
  • Binding of water molecules
  • Protection against dirt, oil decomposition products and sludge formation
  • Prevention of acidification
  • Assembly is possible in any position

FT Filter Driers


steel or stainless steel

Nominal Size

DN 20-80

Nominal Pressure Level

PS 25, PS 40, PS 63

Temperature Range for Standard Valves

-35 °C to +150 °C

Temperature Range for HT Valve Series

-10 °C to +200 °C


butt welding and flanged ends as per DIN and ANSI

Get in touch

Armaturenstr. 2
17291 Prenzlau

Phone: +49 3984 8559-0
Fax: +49 3984 8559-18