Pall HC7500SCS8Z Replacement Filter Element — Cross-Reference & Specifications
Hydrafil Part Number: BF-PAL-917659-L8-12MV | Ships same day from Detroit, MI | OEM-equivalent performance
The HC7500SCS8Z pairs a 12-micron microglass element with a Viton (fluorocarbon) seal in the long-body 10.9 in format — the right combination for high-flow filtration in systems running phosphate ester fire-resistant fluids, high-water-content fluids, or continuous-duty hydraulics with elevated reservoir temperatures. Unlike the Buna-equivalent variant, the Viton seal tolerates sustained operation above 200°F and resists attack from the ester-based and synthetic fluids common in steel mills, aluminum die casting, and marine hydraulic service. The L8 body delivers the flow capacity these heavy-duty applications demand.
Dimensional Specifications
An exact dimensional match is required for proper housing seating, bypass valve operation, and full-perimeter seal engagement.
| Specification | Value |
|---|---|
| Outer Diameter (Top) | 5.06 in |
| Outer Diameter (Bottom) | 5.06 in |
| Element Length | 10.9 in |
| Thread Size | 1.5 - 16 |
| Collapse Rating | 100 psid |
Media & Construction
Material selection in this element balances particle capture efficiency with dirt-holding capacity for the fluid chemistry and operating conditions where this variant is deployed.
- Filtration Media: Microglass Fiber Media — significantly higher particle capture efficiency than cellulose at the 12-micron rating, with the dirt-holding capacity to support long service intervals on mid-range contamination loads
- Seal Material: Viton (Fluorocarbon) — fluorocarbon seal rated for phosphate ester (Skydrol, Fyrquel), polyol ester, HFC/HFD fire-resistant fluids, and synthetic hydraulic fluids; maintains elasticity and sealing compression set at continuous operating temperatures up to 400°F
- End Caps: Corrosion Resistant Steel — corrosion resistant for long service life
- Center Tube: Corrosion Resistant Steel — maintains structural integrity under pressure cycling and differential pressure spikes during cold-start flow surges
Filtration Performance Rating
At 12 microns, this element targets the mid-range contamination particles — abrasive wear debris, atmospheric dust ingressed through breather vents, and pump-generated metallic fines — that drive accelerated pump efficiency loss and control valve spool erosion in standard industrial hydraulic circuits.
The filtration rating is verified to Bx = 200 (≥99.5% capture at the rated micron size) and Bx[c] = 1000 (≥99.9% capture) per ISO 16889 multi-pass testing — the methodology that measures real-world efficiency under sustained contaminant loading, not the single-pass nominal ratings that older filter specifications sometimes cite.
A 12µm Viton element in the L8 long body is the go-to configuration for high-flow circuits running phosphate ester (Skydrol, Fyrquel), polyol ester, or HFC/HFD fire-resistant hydraulic fluids — the standard filtration spec for the industries where those fluids are mandatory. Fluorocarbon seals are also required in any hydraulic system operating continuously above roughly 200°F, where Buna-N begins to harden and lose its sealing compression set.
ISO Standards Compliance
This element is manufactured and tested to the hydraulic filter standards that govern structural integrity, fabrication quality, fluid compatibility, and filtration performance:
| 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 HC7500SCS8Z
The HC7500SCS8Z is specified into hydraulic systems in steel melt shops, continuous caster hydraulics, aluminum die casting machines, aerospace ground support equipment, and marine deck machinery — applications where either fire-resistant fluid or elevated operating temperatures rule out nitrile seals. The 12µm rating remains the practical choice for general pump and valve protection in these systems, while the long-body format ensures the dirt-holding capacity matches the continuous-duty loading these fluids and environments impose.
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-917659-L8-12MV
Questions? Call (313) 915-4120 or email sales@hydrafil.com
Pall and HC7500SCS8Z are trademarks of their respective owners, referenced here solely for cross-reference and compatibility identification purposes.