High Pressure/High Flow Inline Cartridge Filter System
The sturdy HPK03 filter is constructed of ductile iron for durability in high pressure applications. Housing includes fluoroelastomer head-to-housing seal. Meets HF3 specification.
High Pressure Circuits
Servo Valve Circuits
Rugged construction for reliable performance
Highly configurable – Flexible mix and match system of in-stock heads, housings and cartridges
Featuring our high-performance DT filters or standard filters with multiple efficiency options – allowing you to achieve the performance you need for most any application
Strong, durable ductile iron construction
Standard housing drain plug simplifies servicing
Fluoroelastomer head-to-housing seal
Meets HF3 specification
High collapse filter options for no bypass applications
Viton® seals are used on high-performance DT filters
Buna-N® seals are used on standard filters
Working pressure to: 206.9 bar / 3000 psi
Rated static burst to: 4.13 bar / 6000 psi
Flow range to: 227 lpm /60 gpm
Porting size options: SAE-12 or SAE-16 O-ring
Standard bypass ratings of:
3.5 bar / 50 psi
Available Media Types
Donaldson exclusive Synteq™ – synthetic fiber media for greater filtration efficiency and higher dust-holding capacity
Many different efficiency grades from which to choose
Water absorbing media
Viton® and Buna-N® are registered trademark of E. I. DuPont de Nemours and Company.
The following are recommended practices for hydraulic filter servicing and handling. These steps are universal to many hydraulic systems. This servicing information is provided as a best practices guide. Donaldson recommends that you follow the filter service instructions supplied by your original equipment manufacturer. These recommended practices are not intended to replace or supersede the service instructions supplied by your equipment or vehicle manufacturer.
Check the filter service indicator
Check to see that the OEM specified service interval has been reached or that the service indicator shows that the filter is due for servicing.
Turn system off and release pressure
Ensure that the hydraulic system is turned off.
Check that there is no pressure present.
Use oil drain port to better control oil removal from the housing
Unscrew the cartridge housing
Remove the used filter and gasket, if applicable
Properly dispose of the cartridge according to local regulations.
Clean the head seal area and housing
Clean out any sediment from the inside of the filter housing.
Inspect the new filter cartridge for damage
Check the new filter you will be installing for any shipping and handling damage. Do not install a damaged filter.
Install and lubricate seals, gaskets and threads.
Lubricate the o-rings, gaskets, housing seals and threads with clean system oil.
Install new cartridge into the housing
Align threads – spin on housing
Install housing according to manufacturer instructions
Bleed the hydraulic system and check for leaks
Donaldson Hydraulic Filtration Overview
Donaldson provides filters and contamination control products to protect hydraulic components -- in the factory and on heavy-duty equipment. This module provides an overview of hydraulic systems and the advantages of Donaldson hydraulic filters.
Donaldson Hydraulic Filter Servicing
Donaldson provides best practices and recommended steps for hydraulic filter servicing. By following these simple steps, discover how you can reduce maintenance costs and extend the life of your hydraulic system.