PI4230-012/RV *E77689078


For use in hydraulic systems, lubrication systems and test benches, we developed a wide range of efficient pressure filters that permanently ensure compliance with the purity classes of fluids and oils.

Nominal size to 450

  • Low space requirement due to compact design
  • Minimum pressure drop due to streamlined design of components 
  • NPT and SAE threaded connections available
Exemplary picture

For hydraulic systems and lubrication systems, we have a comprehensive range of high-pressure filters in our product portfolio. These are available in various designs and dimensions and for different pressure ratings. A cold start valve can be integrated in the filter head of the Pi 420. It ensures that only filtered fluid is supplied to the hydraulic system in all operatingstates.
If the differential pressure rises above the opening pressure of the cold start valve (e.g. due to excessive viscosity of the fluid during a cold start or if the element has not been changed), a partial flow is returned to the hydraulic tank via the tank connection on the filter head. The robust housing can withstand even strong operating pressure, while the streamlined designs also ensure maximum performance.

More Information
Filter type High pressure filter
Series Pi 420
Nominal size 300 l/min
Connection type Thread ISO 228
Connection size G 1 1/4
max. operating pressure 400 bar
Operating temperature range -10°C - +120°C
Sealing material NBR
Filter head material GGG
Filter housing material Steel
Element pick-up FG Standard
Bypass valve (bar) 7,00
Reverse flow valve Yes
Maintenance indicator Yes
Element installation Yes
Maintenance indicator type Differential pressure indicator
Evaluation maintenance indicator mechanical
Indicator setting 5,0 bar
Differential pressure resistance (bar) 20,00
Filter material Wire mesh
Filter rating (micrometer) 100,00
Filter element PI 8530 DRG 100
H.T.S. 84212980
Country of origin / region DE/08
Product weight 16,000 KG
Data Sheets