Pall HC7500SCP4H Replacement Filter Element — Cross-Reference & Specifications
Hydrafil Part Number: BF-PAL-227929-L4-3MB | Ships same day from Detroit, MI | OEM-equivalent performance
The HC7500SCP4H is a 3-micron, Buna-N sealed element in the compact L4 body (6.9 in) — Pall’s specification for the highest-tier contamination control in the HC7500 50-AT spin-on series. At 3µm, this element goes beyond servo valve protection into the cleanliness levels required for ultra-precision proportional valves, electrohydraulic servo actuators (EHSAs), and systems targeting ISO 4406 Class 14/12/9 or cleaner. It is a compact-installation element suited for machine tool spindle drives, precision grinding systems, and flight simulation hydraulics where even sub-10µm contamination causes unacceptable position drift and valve erosion.
Dimensional Specifications
The compact L4 body installs in space-constrained OEM housings without modification — the 5.06 in OD and 1.5-16 thread interface provide a direct drop-in fit for any HC7500 50-AT series housing specified for L4 elements.
| 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
Three-micron absolute filtration demands microglass fiber media — cellulose media cannot reliably achieve this rating under real-world flow and pressure cycling conditions.
- Filtration Media: Microglass Fiber Media — finely engineered fiber matrix achieves absolute 3µm particle capture; retains structural integrity under cold-start pressure spikes and dynamic flow variation that would cause cellulose fiber migration at this fine rating
- Seal Material: Buna-N (Nitrile) — compatible with mineral oils, petroleum-based hydraulic fluids, and water glycol solutions; temperature rated from -40°F to +250°F for standard industrial hydraulic environments
- 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 3µm, this element captures particles below the bore clearance of even the tightest electrohydraulic servo valves (typically 3–8µm spool-to-bore clearance in precision EHSAs). Systems using this element are targeting cleanliness levels required by precision motion control applications — ISO 4406 Class 14/12/9 or better — where contamination-induced valve wear causes position errors measurable in microns.
3µm Buna-N in the L4 compact body: specified for ultra-precision servo actuators, electrohydraulic flight controls, and precision grinding machines where sub-10µm contamination control is the engineering requirement, and installation space constrains element length.
| Beta Rating | Value |
|---|---|
| Bx | 200 |
| Bx[c] | 1000 |
ISO Standards Compliance
Full ISO test validation confirms this element performs to specification in the demanding precision hydraulic environments where the SCP4H is deployed.
| 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 HC7500SCP4H
The HC7500SCP4H is specified wherever the highest level of contamination control in the HC7500 series is required in a compact form factor — precision CNC machining centers, surface and cylindrical grinding machines, flight simulation hydraulic systems, and semiconductor fabrication equipment. The 3µm Buna-N L4 configuration is the OEM specification for systems where proportional or electrohydraulic servo valve manufacturers mandate ISO Class 14/12/9 inlet cleanliness to maintain positioning accuracy and warranty coverage.
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 HC7500SCP4H are trademarks of their respective owners, referenced here solely for cross-reference and compatibility identification purposes.