water treatment with future

Backwash filter with pressure reducer

permaster black

Reduce water consumption. And enjoy full comfort.

Filter-pressure reducer combinations of the permaster black series are characterised by all the advantages of the permaster black backwash filters. In addition, the inlet pressure can be reduced and the integrated pressure reducer compensates for pressure fluctuations from the supply network. This effectively protects valves and equipment from damage. Reducing the water pressure to the desired level reduces water consumption without loss of comfort.

  • Protects the drinking water installation from alluvial dirt particles
  • Particularly durable and stable thanks to high-quality materials
  • Light protection against algae formation through tinted filter cup
  • Double cleaning effect for filter sieve and filter cup due to specially developed strip brushes
  • Integrated pressure reducer protects valves and equipment from pressure surges
  • Reduction of water pressure reduces water consumption without loss of comfort
  • Available in connection sizes from DN 25 to DN 50

Protect your installation

Protect your installation

The integrated pressure reducer effectively protects your fittings, valves, devices and the water installation against pressure shocks.

Save water in the process

Save water in the process

Our backwash filter with pressure reducer ensures that you can save valuable water.

permaster black Backwash filter with pressure reducer

PT-HWS 25 / 32 effectively protects valves and equipment from damage.

PT-FDK 40/50

For larger systems: Our filter/pressure reducer combination in connection sizes DN 40 and DN 50

Filter water with permaster black.

Filtration.

NORMAL WATER FLOW: In normal operation the water flows from the outside to the inside through the sieve and is filtered.

Patented strip brushes cleaning.

Backwashing.

BACKWASH: The flow direction of the water is reversed. Strip brushes clean the transparent filter cup and the stainless steel filter strainer during backwashing. Dirt particles are rinsed out through the drain funnel.

Technical Information

Detailed Information

Typ

PT-HWS 25

PT-HWS 32

PT-FDK 40

PT-FDK 50

Connection thread d1 DN
customs
25
1
32
40
50
2
Nominal flow rate  in m3/h 3,6 3,6 9,1 14
Mesh size in µm 100 100 100 100
max. operating pressure in bar 16 16 16 16
Control range of the pressure min. in bar 1 - 6 1 - 6 1,5 - 6 1,5 - 6
Max. operating temperature in °C 30 30 30 30
vertical and horizontal installation
Dimension b1 in mm 110 164 320 353
Dimension b2 in mm 204 280 436 467
Dimension h1 in mm 358 358 372 372
Abmessung h2 in mm 478 478 520 520
Dimension t in mm 204 204 68 68
Weight in kg 6,3 7,0 7,0 8,4