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Gap-type filters

Plate gap-type filters
Plate gap-type filters
Wire gap-type filters
Wire gap-type filters
Tube gap-type filters
Tube gap-type filters
Inserts for gap-type filters
Inserts for gap-type filters

Our best-selling products


KMGP00009 plate gap-type filter

Manufacturer : FILTREC

KMGP00009 plate gap-type filter
MSRP: €1,932.30
Net price: €1,256.00
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 4-6 weeks
KMGP00012 plate gap-type filter

Manufacturer : FILTREC

KMGP00012 plate gap-type filter
MSRP: €1,815.20
Net price: €1,179.90
Prices excl. VAT plus shipping costs
Stock: 2
Minimum order quantity: 1
Delivery time: 1-2 days
KMGW00003 wire gap-type filter

Manufacturer : FILTREC

KMGW00003 wire gap-type filter
MSRP: €1,423.20
Net price: €925.10
Prices excl. VAT plus shipping costs
Stock: 2
Minimum order quantity: 1
Delivery time: 1-2 days
KMGT00006 tube gap-type filter

Manufacturer : FILTREC

KMGT00006 tube gap-type filter
MSRP: €3,975.30
Net price: €2,584.00
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 4-6 weeks
KMGT00004 tube gap-type filter

Manufacturer : FILTREC

KMGT00004 tube gap-type filter
MSRP: €2,306.20
Net price: €1,499.10
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 4-6 weeks
25.003.00014 tube gap-type filter insert

Manufacturer : FILTREC

25.003.00014 tube gap-type filter insert
MSRP: €2,135.70
Net price: €1,388.30
Prices excl. VAT plus shipping costs
Stock: 9
Minimum order quantity: 1
Delivery time: 1-2 days
Spaltfilter

How does a gap-type filter work? 

Gap-type filters are classic liquid filters that have proven their worth countless times in diverse applications. Plate, tube, and wire gap-type filters are designed for filtration of heavily contaminated high and low-viscosity liquids, such as fuels, lubricating oils, paints, polyol, isocyanate, cooling lubricants, etc. 

Areas of application for gap-type filters 

These filters can be used in all industrial fields, such as: 
  • Steam engines and hydraulic motors 
  • Pumps 
  • Hydraulic systems 
  • Machine tools 
  • Gear units 
  • Medium to large combustion engines 
  • Food industry 
  • Processing of polyurethane, insulation materials of all kinds 
  • Solvents, adhesives, and plasticizers 
  • Tar products, flooring, epoxy resin 
  • Purification of water and liquids for chemical processes, etc.
  • and many more 

Gap-type filters can be used in both the main and partial flow. The direction of flow through the filter element is from the outside to the inside and the filter fineness is defined by the gap width. The filter housings are made of steel, cast iron, aluminum, and other materials upon request. 

Special features of gap-type filters These filter types are characterized by the following attributes: 

  • Can be cleaned during operation
  • Low maintenance 
  • Long service life 
  • Can be used in the main or partial flow 
  • No additional filter aids are necessary 

The gap-type filters in our store are characterized by robust designs and unrivaled properties that are the result of decades of manufacturing experience. 

Gap-type filter designs 

The three variants of gap-type filters – plate gap-type filters, tube gap-type filters, and wire gap-type filters – all function according to the same basic principle, but differ from each other in terms of their design. Here is a brief explanation of the respective modes of operation in the following categories. 

Plate gap-type filters (gap widths from 0.1 mm) 
  • Suitable for high-viscosity liquids. 

Tube gap-type filters (gap widths from 0.05 mm) 
  • Suitable for aqueous and/or aggressive liquids 

Wire gap-type filters (gap widths from 0.03 mm) 
  • Suitable for fuels and lubricants 

Gap-type filter maintenance 

As a general rule, maintenance work on gap-type filters should only be carried out by trained personnel. 

The maintenance schedule will depend on the application and the dirt concentration, density, and type of dirt. 

The higher the dirt concentration and the less favorable the type of dirt, the shorter the maintenance intervals need to be. Whereas with a low dirt concentration and a favorable type of dirt, it may be possible to significantly extend the maintenance intervals. 

The customer’s system must be switched off during cleaning and maintenance/repair work. It must be completely depressurized and secured against being inadvertently restarted. The system must not be started with the filter element removed! 

Tips on gap-type filter maintenance 

To service the filter insert, turn it once or twice using the rotary knob. This causes the gap cleaner or scraper to remove the impurities, which fall into the sludge chamber inside the housing. They can then be drained by unscrewing the plug. 

Cleaning is most effective when performed immediately after system shutdown as the freshly scraped-off contaminants will fall easily into the housing’s sludge chamber. 

  1. In case of leakage from the stuffing box, loosen its lock nut and tighten the stuffing box screw slightly. 
  2. Make sure the knob turns easily, as over-tightening it may damage the gland. 
  3. Then re-tighten the lock nut. 
  4. If the filter insert is heavily soiled, remove it, soak it in detergent and wash it out. 
  5. If the knob does not turn, never use excessive force to turn it. 
  6. Filter inserts that are damaged or can no longer be rotated must be replaced.