Pall HC7500SUZ4Z Replacement Filter Element - Cross-Reference & Specifications
Pall HC7500SUZ4Z Replacement Filter Element - Cross-Reference & Specifications
Hydrafil Part Number: BF-PAL-482080-L4-1MV | Ships same day from Detroit, MI | OEM-equivalent performance
The Pall HC7500SUZ4Z represents the most demanding filtration configuration in the HC7500 series: 1-micron absolute filtration combined with Viton (Fluorocarbon) seals for compatibility with phosphate ester and synthetic hydraulic fluids. This combination is specified for servo valve protection circuits in systems running fire-resistant or high-temperature synthetic fluids - the intersection of the finest contamination control and the most aggressive fluid chemistry. It's commonly found in critical aerospace hydraulics, steel mill servo-controlled rolling equipment, and die casting machine precision circuits where neither the fluid nor the cleanliness requirement allows compromise.
Dimensional Specifications
The BF-PAL-482080-L4-1MV matches the HC7500SUZ4Z in all critical dimensions for direct installation in your existing housing without modification.
| 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
Every specification on this element is engineered for the dual demands of ultra-fine filtration and chemical compatibility with synthetic fluids:
- Filtration Media: Microglass Fiber - the only media capable of achieving 1?m absolute performance while maintaining practical differential pressure characteristics across the service life of the element
- Seal Material: Viton (Fluorocarbon) - required when the hydraulic fluid is a phosphate ester (Skydrol, Fyrquel), polyol ester, or other synthetic formulation; Buna-N seals swell and fail in these fluids, creating a bypass path that defeats the purpose of 1?m filtration
- End Caps: Corrosion Resistant Steel - maintains the zero-bypass seal integrity that 1?m servo valve protection circuits demand
- Center Tube: Corrosion Resistant Steel - withstands the elevated differential pressure characteristic of 1?m service in high-viscosity synthetic fluids
Filtration Performance Rating
The BF-PAL-482080-L4-1MV achieves Bx[c=1?m] = 1000 (99.9% single-pass efficiency at 1 micron) with a multi-pass Beta value of Bx[1?m] = 200 per ISO 16889. At 1 micron absolute in a synthetic fluid system, this element is the last line of defense before contamination reaches the servo valve metering edges - where even sub-micron particles cause metering edge erosion, spool scoring, and progressive loss of position control accuracy.
The SUZ4Z is the correct element when you have both a servo circuit and a synthetic fluid - substituting a Viton-seal 6?m or 25?m element, or using a 1?m element with Buna-N seals in these fluids, both represent specification errors that will result in either inadequate cleanliness or seal failure.
ISO Standards Compliance
Hydrafil elements are manufactured and tested to the same ISO standards Pall applies to OEM elements. The BF-PAL-482080-L4-1MV 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 HC7500SUZ4Z
The HC7500SUZ4Z is Pall's most specialized element in the HC7500 family, combining 1-micron absolute filtration with Viton seals for servo valve protection in synthetic and phosphate ester hydraulic fluid systems. Typical applications include aerospace hydraulic test stands and ground support equipment using Skydrol, precision servo-controlled steel mill rolling mill hydraulics running fire-resistant phosphate ester fluids, and high-precision die casting machine circuits where both system cleanliness and fluid compatibility are critical constraints. When a machine specifies this element, it's because the original equipment designer identified the servo circuit as contamination-sensitive and the fluid chemistry as incompatible with standard elastomers.
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: +1 (313) 915-4120
Shop the BF-PAL-482080-L4-1MV ? https://www.hydrafil.com/products/pall-hc7500suz4z
Questions? Call (313) 915-4120 or email sales@hydrafil.com
Pall and HC7500SUZ4Z are trademarks of their respective owners, referenced here solely for cross-reference and compatibility identification purposes.