Element Collapse/Burst Rating (ISO 2941)
- 10 bard (150 psid) minimum for Coreless filter elements
- 20 bard (300 psid) minimum for Standard filter elements
- 210 bard (3,045 psid) minimum for High Collapse Strength filter elements
Flow vs. Pressure Drop (ISO 3968)
Fluid Compatibility (ISO 2943)
Compatible with petroleum oils, water glycols, water-oil emulsions, and high water-containing fluids. Fluorocarbon seals are standard, enabling use with industrial phosphate esters, diesters, and specified synthetics.
Flow Fatigue (ISO 3724)
Contact factory; filter element pleats are fully supported, both upstream and downstream, to achieve excellent fatigue cycle life.
Fabrication Integrity (ISO 2942)
Fabrication integrity is validated and assured during the manufacturing process by numerous evaluations and inspections, including Bubble Point testing.
Fluorocarbon seals: -29˚C (-20˚F) to +120˚C (+250˚F)
Note: Maximum 60˚C (140˚F) in water-based fluids. Other seal materials are available based on the application.
Pall manufactures all filter elements according to exacting procedures and strict quality controls. Filter elements are checked against rigorous ongoing validation test protocols within Pall Corporation. Pall is accredited to ISO 9001 and QS 9000.
Measuring Filter Performance – Cyclic Stabilization Test (based on SAE ARP4205)
Conditions such as varying flow, cold starts, shock and vibration can potentially reduce the effectiveness of a filter in an operating system. The Cyclic Stabilization Test examines the effects of cyclic flow conditions and dirt loading on the capture and retention characteristics of the filter. The result is an improved filter performance reporting method that simply tells the user via ISO Codes the level of contamination control that can be maintained throughout the filter’s service life.
Cleanliness Code Ratings
|Media Grade Code
||Rating (μm) ßx(c) ≥ 2000 based on ISO 16889
||CST* ISO Code Rating based on SAE ARP 4205
* CST: Cyclic Stabilization Test to determine filter rating under stress conditions, based on SAE ARP4205.
Note these ISO codes are laboratory measurements under standard conditions.
Cleanliness measured in actual operation will depend on operating conditions and sampling method.