Krone Plate Gap-Type Filter for Gap widths ≥ 0,1 mm

When it comes to increasing the service life of medium or high-viscosity fluids, plate gap-type filters are a truly expert choice.

The plate gap-type filter element comprises ring-shaped steel plates that are arrayed on a central pin. Spacer shims between the plates determine the gap width. A fixed gap cleaner reaches into every gap. During the flow through the plates, the dirt particles in the fluid being filtered deposit on the surface and in the gaps. If the filter element is rotated via the handle, the deposited dirt and contamination settles on the row of gap areas and sinks into the sludge collection chamber, where it is removed by opening a ball valve.


  • Easy to maintain
  • Gap widths of 100 und 200 μm
  • Option of automatic cleaning without interruption of operation
  • The classic filter – successfully tried and tested in many thousands of applications

Operating principle - Successfully tried and tested in many thousands of applications


Size 525
Nominal width DN 50
Gap widths (µm) 100, 200
Volume flow (m3/h) See footnote 1)
With gap width X = 0,10 mm (100 µm) 12,0
With gap width X = 0,20 mm (200 µm) 15,0
max. V (m/sec.) raw side 3,0
max. operating pressure (bar) 40
max. differential pressure (bar) 6
Permissible operating temperature -10 °C/200 °C


Drive (ATEX optional) 230/400 V IP 55 (axial/angle 90°) / handle / ratchet
Sludge drainage 1" electro/magnetic / manual ball valve
Control system Siemens Logo T+P
Differential pressure switch analogue or digital 1–6 bar


KF-515257x102 Plate gap-type filter GGG40 S355 Stahl
KF-515257x104 Plate gap-type filter ALU 2) ALU 2) ALU 2)
KF-515257x175 Plate gap-type filter V4A V4A VA

Krone Filtertechnik Gapfilter and Profluid (Successor model from the Mann + Hummel Gapfilter)

Data sheet Plate Gap-Type Filter DN 50

Data sheet Plate Gap-Type Filter G1 Zoll

Data sheet Plate Gap-Type Filter G1 Zoll, 1/2 Zoll, 3/4 Zoll und M22x1,5

Certificate DEKRA - CE 2266

Mann und Hummel Plate gap-type filter



1) The flow specifications apply to fluids with a viscosity of 72 mm²/s (cSt) in cases where there is a flow resistance level (delta p) of 0.2–0.4 bar. The specified flow figures may be exceeded in cases where less dirt accumulates and the flow resistance is permitted to be higher.
2) Max. permissible operating temperature: 120 °C