Pall HC7500SDN4Z Replacement Filter Element — Cross-Reference & Specifications
Hydrafil Part Number: BF-PAL-732091-L4-6MV | Ships same day from Detroit, MI | OEM-equivalent performance
If you need a replacement for the Pall HC7500SDN4Z, you’re running a hydraulic system that requires a 6-micron element with Viton (fluorocarbon) sealing — typically for elevated temperatures, synthetic fluids, or environments where Buna-N compatibility is a concern. The Hydrafil BF-PAL-732091-L4-6MV is a direct drop-in replacement built to original dimensional and performance specifications, manufactured and sourced in the USA.
Dimensional Specifications
The BF-PAL-732091-L4-6MV matches the HC7500SDN4Z in all critical dimensions, ensuring proper fitment in your existing filter housing with no modification required.
| Specification | Value |
|---|---|
| Outer Diameter (Top) | 5.06 in |
| Outer Diameter (Bottom) | 5.06 in |
| Element Length | 6.9 in |
| Thread Size | 1.5–16 UNF |
| Collapse Rating | 100 psid |
Media & Construction
Filter media and materials of construction directly affect element life, fluid compatibility, and filtration efficiency. The specifications below match the OEM Pall element:
- Filtration Media: Microglass Fiber — higher dirt-holding capacity and lower pressure drop than cellulose alternatives
- Seal Material: Viton (Fluorocarbon) — rated for elevated temperatures and compatible with synthetic hydraulic fluids, phosphate ester fluids (Skydrol), and applications where Buna-N is not suitable
- End Caps: Corrosion Resistant Steel — prevents bypass during cold-start high-viscosity conditions
- Center Tube: Corrosion Resistant Steel — maintains structural integrity at system pressure
Filtration Performance Rating
The BF-PAL-732091-L4-6MV achieves 6-micron absolute filtration at Beta 1000 (Bx[c=6µm] = 1000), removing 99.9% of particles at 6 microns and larger in a single pass. This rating is consistent with the original Pall HC7500SDN4Z specification.
The multi-pass Beta rating (Bx[6µm] = 200) reflects 99.5% efficiency under ISO 16889 multi-pass test conditions — the industry standard for hydraulic filter element performance.
Why Viton matters: If your system runs phosphate ester fluid, polyol ester, or operates above 200°F, Buna-N seals degrade and leak. The “Z” suffix on the Pall part number — and the “V” in the Hydrafil SKU — both indicate Viton sealing for these demanding conditions.
ISO Standards Compliance
Hydrafil filter elements are tested to the same ISO standards required of OEM elements. The BF-PAL-732091-L4-6MV is tested in compliance with:
| ISO Standard | What It Tests |
|---|---|
| ISO 2941 | Collapse & burst resistance |
| ISO 2942 | Fabrication integrity & bypass valve function |
| ISO 2943 | Material compatibility with hydraulic fluids |
| ISO 3724 | Flow fatigue characteristics |
| ISO 3968 | Pressure drop vs. flow rate characteristics |
| ISO 16889 | Multi-pass performance (Beta ratio methodology) |
About the Pall HC7500SDN4Z
The Pall HC7500 series covers medium-pressure hydraulic filtration across a wide range of industrial applications. The SDN4Z configuration is the Viton-seal variant of the standard 6.9-inch HC7500 element — specified wherever a system uses synthetic or high-temperature hydraulic fluid that would degrade standard Nitrile seals. It is commonly found in aerospace ground support equipment, steel mill hydraulics, die casting machines, and any application running phosphate ester or polyol ester fluid.
Why Order from Hydrafil?
- OEM-equivalent performance at a lower cost per element
- Manufactured and sourced in the USA — Detroit, Michigan facility
- Same-day shipping on in-stock elements
- 200,000+ filter cross-references available
- Technical support from our engineering team: +1 (313) 915-4120
Shop the BF-PAL-732091-L4-6MV → https://www.hydrafil.com/products/pall-hc7500sdn4z
Questions? Call (313) 915-4120 or email sales@hydrafil.com
We reference the Pall HC7500SDN4Z solely for identification and cross-referencing purposes. All OEM names, part numbers, and trademarks are the property of their respective owners.