Overview
The Pall HC7400SKN8H filter housing is a precision-engineered spin-on hydraulic filter housing from Pall Industrial, a leader in fluid filtration solutions. This housing-only component serves as the foundation for 7400 series filter assemblies, supporting critical hydraulic system protection in mobile equipment, industrial machinery, and power generation applications. Built to exacting manufacturing standards, the HC7400SKN8H accepts standard 7400 series filter elements.
Key Features
- 1-1/2-16 UNF thread connection for secure mounting
- 3-11/16″ outer diameter (OD) housing body
- 8-1/16″ overall length for compact installation
- Spin-on design for fast element replacement without breaking connections
- Compatible with petroleum oils, water glycols, and synthetic hydraulic fluids
- Operating temperature range: -20°F to 225°F (-29°C to 120°C)
Technical Specifications
- Housing Part Number: HC7400SKN8H
- Filter Series: 7400 (Supralon spin-on)
- Thread Size: 1-1/2-16 UNF
- Housing OD: 3-11/16 inches
- Housing Length: 8-1/16 inches
- Bypass Valve Setting: 1.7 bar (25 psid) standard or 3.4 bar (50 psid) non-bypass options
- Indicator Pressure Setting: 1.1 bar (16 psid) with ‘A’ valve; 2.4 bar (35 psid) with ‘B’/’W’ valve
- Fluid Compatibility: Petroleum oils, water glycols, water-oil emulsions, synthetic hydraulic and lubricating fluids
- Temperature Range: -29°C to 120°C (-20°F to 225°F); 60°C (140°F) max for HWCF or water glycol applications
- Housing Pressure Drop: Proportional to specific gravity (typical reference: 0.9 S.G. at 32 cSt/150 SUS)
- Manufacturer: Pall Corporation (United States)
Typical Applications
- Mobile hydraulic systems (excavators, loaders, log splitters)
- Industrial machinery and plant equipment
- Power generation and marine hydraulic circuits
- Off-highway vehicle hydraulic systems
- Heavy equipment return-line and pressure filtration
Compatibility & Replacements
Compatible With
- Pall 7400 series spin-on filter elements (HC7400SK-, HC7400SD-, HC7400SW- variants)
- Hydraulic systems requiring 1-1/2-16 UNF spin-on filter housings
- Equipment originally equipped with Pall 7400 series filters
- Systems compatible with petroleum oils, water glycols, and synthetic fluids
Replaces / Drop-In Replacement For
- Pall HC7400SKN4H (6-micron variant)
- Pall HC7400SKS4H and HC7400SKS8H (alternate filter media)
- Pall HC7400SKZ8H (fluorocarbon seal variant)
- Verify compatibility with your system integrator for specific replacement applications
Works With
- Pall Supralon spin-on filter technology
- Standard 1-1/2-16 UNF hydraulic connections
- Equipment using ISO VG 32–68 hydraulic fluids
- Systems with bypass valve settings 25 or 50 psid
