Pall HC7500SCN4Z Replacement Filter Element — Cross-Reference & Specifications
Hydrafil Part Number: BF-PAL-893359-L4-6MV | Ships same day from Detroit, MI | OEM-equivalent performance
The HC7500SCN4Z pairs 6-micron microglass filtration with a Viton (Fluorocarbon) seal in the compact L4 body (6.9 in) — the specified configuration for precision hydraulic servo circuits running phosphate ester fire-resistant fluids, synthetic esters, or operating in elevated-temperature environments where Buna-N seals would degrade and allow bypass leakage. This variant is routinely found in aerospace ground support equipment, steel mill hydraulics, and die-casting machine controls where both ultra-fine contamination control and aggressive fluid compatibility are non-negotiable.
Dimensional Specifications
Dimensional accuracy in the HC7500 50-AT spin-on housing is critical — the 5.06 in OD and 1.5-16 thread must match precisely to ensure full sealing engagement and prevent bypass around the element.
| Specification | Value |
|---|---|
| Outer Diameter (Top) | 5.06 in |
| Outer Diameter (Bottom) | 5.06 in |
| Element Length | 6.9 in |
| Thread Size | 1.5 - 16 |
| Collapse Rating | 100 psid |
Media & Construction
Microglass fiber media and Viton seals together address both particle control and chemical compatibility demands in harsh hydraulic environments.
- Filtration Media: Microglass Fiber Media — consistent absolute 6µm performance through multi-pass testing; superior to cellulose for systems requiring ISO Class 15/13/10 or better cleanliness
- Seal Material: Viton (Fluorocarbon) — resists degradation in phosphate ester fluids (Skydrol, Fyrquel), synthetic esters, and high-temperature mineral oil applications up to +400°F; preferred seal for fire-resistant hydraulic systems
- End Caps: Corrosion Resistant Steel — corrosion resistant for long service life
- Center Tube: Corrosion Resistant Steel — maintains structural integrity under pressure cycling
Filtration Performance Rating
At 6µm, this element removes the particle size range most critical to servo and proportional valve longevity — particles in the 5–13µm range that pass through coarser elements and lodge in valve spool clearances. Combined with Viton seals, the SCN4Z is built for applications where the hydraulic fluid itself poses a chemical challenge to elastomers.
6µm Viton in a compact L4 body: the go-to choice for fire-resistant fluid systems (phosphate esters, synthetic esters) in steel mills, die-casting, and aerospace applications where servo valve cleanliness and seal integrity both matter.
| Beta Rating | Value |
|---|---|
| Bx | 200 |
| Bx[c] | 1000 |
ISO Standards Compliance
Full validation against ISO hydraulic filter standards ensures reliable performance across demanding industrial applications.
| 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 HC7500SCN4Z
The HC7500SCN4Z is engineered for safety-critical and high-temperature hydraulic applications where Viton seals are the engineering specification — steel mill rolling mill drives, die-casting machine injection circuits, and aerospace ground support equipment using phosphate ester fluids. The 6µm filtration level protects servo valves and proportional valves in closed-loop control systems, while the L4 compact body fits space-constrained housing assemblies on OEM equipment.
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
Questions? Call (313) 915-4120 or email sales@hydrafil.com
Pall and HC7500SCN4Z are trademarks of their respective owners, referenced here solely for cross-reference and compatibility identification purposes.