Filter Cartridges

for fine filtration

A variety of filter cartridges in different designs are able to filter coarse as well as very fine impurities from water or other liquids. Depth filter elements with nominal deposition rates are often used as prefilters and furthermore offer many possible applications in liquid filtration. 

In order to achieve the required purity, absolute filter cartridges or pleated filter elements are usually used for very fine applications. Due to the wide range of cartridge filters, the perfect adjustment to your process is possible.

String Wound Filter Cartridge

String Wound Filter Cartridges

The classic and millionfold proven string wound filter cartridge consists by default of a polypropylene yarn which is wound onto a supporting core of the same material. Further yarns like cotton, polyester and glass fiber with stainless steel core allow applications under different operating conditions. This enables the use at higher temperatures as well as a broad spectrum of chemical resistance.

Materials:Polypropylene, washed polypropylene, polyester, cotton, glass fiber
Fineness:0,5 · 1 · 3 · 5 · 10 · 25 · 50 · 75 · 100 · 150 · 200 µm
Lengths:5 to 60“
Cores:Polypropylene, stainless steel, galvanized steel
Other:Maximum operating temperatures from 80 °C to 400 °C
Nominal Filter Cartridge Meltblown

Nominal Filter Cartridges Meltblown

During the meltblown process, granulates are fused inside an extruder. The extruded material in the form of microfibers is further processed via injectors and hot air into the final filter cartridge. Because of the special manufacturing process under high quality standards, these filter elements are not in need of a supporting core. Still, relatively high differential pressures are feasible. The continuously graded pore structure allows a long lifetime of the filter element.

Materials:Polypropylene
Fineness:1 · 3 · 5 · 10 · 25 · 50 · 75 µm
Lengths:5 to 40“
Cores:Polypropylene, stainless steel
Adapters:DOE with/withour end caps; SOE 222 with 2 O-rings und spear (P8); SOE 226 with 2 O-rings and bayonet/spear (P7); SOE 222 with 2 O-rings and flat end cap (P3)
Other:Further adapters and O-rings on request
Separation Efficiency Absolute Filter Cartridge Meltblown

Absolute Filter Cartridges Meltblown

Our absolute filter cartridges are the solution to steadily increasing requirements on the purities of numerous fluids. These meltblown-processed filter elements achieve an absolute deposition rate with a β – value of 5000. The standard supporting core made of polypropylene supports the high structural strength. A high absorption capacity of solid particles together with the absolute deposition efficiency allow a profitable use of these cartridge filters in many applications.

Materials:Polypropylene
Fineness:0,5 · 1 · 3 · 5 · 10 · 20 · 30 · 50 · 70 · 90 · 120 µm
Lengths:5 to 40“ 
Cores:Polypropylene, stainless steel
Adapters:DOE with/without end caps; SOE 222 with 2 O-rings and spear (P8); SOE 226 with 2 O-rings and bayonet/spear (P7); SOE 222 with 2 O-rings and flat end cap (P3)
Other:Further adapters and O-rings on request
Pleated Filter Cartridge

Pleated Filter Cartridges

Filter cartridges with pleated filter material have an increased surface area compared to conventional filter elements. Thus, longer lifetime and a cost-efficient filtration is achieved. With a supporting core as well as a strong external cage, a sufficient strength is reached. The multi-layered elements are thermally welded and free of binding agents, adhesives or additives. They are available with nominal as well as with absolute deposition rates.

Materials:Polypropylene, glass fiber 
Fineness:0,2 · 0,5 · 1 · 3 · 5 · 10 · 20 · 35 · 50 · 70 · 90 µm
Lengths:9¾ to 40“
Cores:Polypropylene, glass fiber reinforced polypropylene
Adapters:DOE with/without end caps; SOE 222 with 2 O-rings and spear (P8); SOE 226 with 2 O-rings and bayonet/spear (P7); SOE 222 with 2 O-rings and flat end cap (P3)
Other:Further adapters and O-rings on request