Overview
The Schroeder KZ1 is a high-performance hydraulic filter element designed for precision filtration in industrial hydraulic systems. Part of Schroeder’s 2000 Series, this cartridge provides 1-micron absolute filtration with exceptional dirt-holding capacity. The KZ1 is engineered to meet ISO 16889 cleanliness standards and is compatible with petroleum-based hydraulic fluids, synthetic oils, water glycols, and high water content emulsions.
Key Features
- 1-micron nominal filtration rating for critical contamination control
- Beta ratio of 200:1 ensures superior particle removal efficiency
- Outside-in flow direction for maximum element life
- Collapse pressure rating of 150 psid protects against bypass
- Compatible with multiple fluid types including synthetics and water-glycol systems
- Standard cartridge dimensions: 4.0″ O.D. × 9.0″ long
Technical Specifications
The Schroeder KZ1 meets stringent ISO filtration standards and delivers consistent performance across a range of hydraulic applications:
- Micron Rating: 1 µm absolute
- Flow Direction: Outside-In
- Collapse Pressure: 150 psid (10 bar)
- Operating Temperature: −13 °F to +250 °F (−10 °C to +121 °C)
- Dirt Capacity (Beta ≥200): 4.2 grams
- Element O.D.: 4.0 inches (100 mm)
- Element Length: 9.0 inches (230 mm)
- Seal Material: Buna-N
- Media Options: Paper (E) or Synthetic (Z)
Typical Applications
The Schroeder KZ1 is widely used in industrial hydraulic systems requiring fine filtration:
- Precision machinery and servo-controlled equipment
- Mobile hydraulics (heavy equipment, construction machinery)
- Industrial production lines and automation systems
- Hydraulic power units in manufacturing facilities
- Systems requiring ISO 18/16/13 or better fluid cleanliness
Compatibility & Replacements
Compatible With
- Schroeder K3, K10, K25, K60, K150, K260 filter housings
- Schroeder 2000 Series filter systems
- Standard cartridge filter bowls with SAE or NPTF porting
- Industrial hydraulic systems designed for 4.0″ diameter elements
Replaces / Drop-In Replacement For
- OEM Schroeder KZ1 cartridges (Schroeder Industries part 7630768)
- Equivalent aftermarket KZ1 filters (Fluitek FLK02-18365, Killer Filter KZ1 equivalent)
- Verify housing compatibility with your system integrator before ordering if upgrading from other Schroeder KZ series elements
Works With
- Petroleum-based and synthetic ISO VG 10–46 hydraulic fluids
- Water-glycol hydraulic fluids
- High water content emulsion fluids
- Phosphate ester fluids (verify media selection: Z-series)
- Any K-series Schroeder filter housing with matching porting configuration
