Filter Flow Resistance Tester
1. Application Scenarios
The Filter Flow Resistance Tester is designed to evaluate the clean pressure drop characteristics of various fluid filters. It is widely used for:
Measuring pressure drop vs. flow rate curves of filter elements and complete filter assemblies.
Comparing flow resistance among different filter designs, materials, and manufacturers.
Selecting appropriate filters based on system pressure drop limits.
Validating and verifying manufacturer-provided filter performance data.
Optimizing hydraulic, lubrication, and fuel systems to reduce energy losses caused by filtration.
Implementing quality control during filter production to ensure consistent flow characteristics.
Supporting R&D of new filter media and innovative low-resistance designs.
The tester is suitable for hydraulic system manufacturers, automotive suppliers, filter factories, and laboratory research institutions.
2. Applicable Standards
The system supports standardized pressure drop measurement procedures in accordance with:
ISO 3968
Hydraulic fluid power — Filters — Evaluation of differential pressure versus flow characteristics.
SAE J806
Full-flow lubricating oil filters — Method of test.
Compliance with these standards ensures consistent, comparable, and globally recognized test results.
3. Technical Parameters
| Parameter | Specification |
|---|---|
| System Pressure Gauge Range | 0–30 bar |
| Working Medium | SAE 5W engine oil |
| Pressure Rise Accuracy | 0.5 bar per increment |
| Temperature Range | Room temperature |
| Protective Cover | Transparent safety shield |
Typical System Components Include:
Test fluid reservoir
Variable flow rate pump or flow control system
Filter test housing for element/assembly mounting
Upstream and downstream pressure transducers
Differential pressure transducer for direct ΔP measurement
Precision flow meter
Fluid temperature stabilization system
4. Product Advantages
Provides accurate and objective measurement of filter flow resistance under clean conditions.
Critical for system design, ensuring filters meet allowable pressure drop requirements.
Helps improve energy efficiency by evaluating pressure losses within hydraulic or lubrication circuits.
Standard-compliant testing according to ISO 3968 ensures reliable and repeatable results.
Highly suitable for product development, performance verification, and production quality control.
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