Regal 20 woodruff fittings provide precision threads and corrosion resistance for demanding hydraulic and fluid power applications. This overview explains how their design, material options, and pressure ratings support reliable leak-free performance in industrial and mobile machinery.
Engineers select Regal 20 woodruff styles based on pressure requirements, temperature range, and installation space. Understanding specifications, compatibility, and maintenance factors helps optimize system reliability and service life.
Specifications at a Glance
Key dimensional and performance attributes for Regal 20 woodruff components are summarized below for quick reference.
| Parameter | Metric Value | Imperial Value | Notes |
|---|---|---|---|
| Thread Size | 20 mm | 0.787 in | Designates major diameter |
| Woodruff Width | 6.35 mm | 0.250 in | Standard across series |
| Max Working Pressure | 400 bar | 5800 psi | Depends on material and temperature |
| Temperature Range | -20 to 120 °C | -4 to 248 °F | Seal and fluid compatible |
| Recommended Seal | PTFE or Nitrile | — | Selected per fluid and pressure |
Design and Pressure Capabilities
Regal 20 woodruff fittings feature a compact geometry that retains high-pressure resistance while minimizing space. Optimized groove geometry reduces stress concentrations, supporting consistent sealing under cyclic loading.
Pressure ratings are established through burst and fatigue testing aligned with industry standards. Engineers should factor in temperature derating and dynamic loads when defining safe operating limits for each application.
Material Options and Compatibility
Available materials include carbon steel, stainless steel, and brass variants, each tailored to different fluid environments and corrosion challenges. Selecting the correct material is essential for longevity and to avoid premature failure in aggressive media.
- Carbon steel for high strength in neutral or water-based fluids
- Stainless steel for aggressive chemicals and outdoor exposure
- Brass for moderate pressures and excellent machinability
- Plating and coating options to enhance corrosion resistance
Installation and Assembly Practices
Proper installation is critical to prevent leakage and ensure consistent performance. Following torque sequences and cleanliness procedures reduces the risk of thread damage and seal extrusion.
Technicians should verify thread engagement, align connections before tightening, and confirm seating with pressure checks. Using manufacturer-approved sealants and lubricants supports reliable installation outcomes.
Maintenance and Troubleshooting
Routine inspection for wear, corrosion, and seal condition helps identify issues before they lead to downtime. Regular maintenance schedules extend service intervals and improve overall system availability.
Common symptoms such as intermittent leaks or pressure drops often relate to misalignment, incorrect torque, or incompatible seal materials. Systematic diagnostics combined with component replacement using original or approved parts restores reliable operation.
Key Recommendations
- Select material and seal combinations matched to fluid and temperature
- Verify pressure derating factors for high or low operating temperatures
- Follow installation torque and sequence guidelines from the manufacturer
- Implement scheduled inspections to detect wear or leakage early
- Use OEM or approved replacement parts for repairs and modifications
FAQ
Reader questions
What Regal 20 woodruff sizes and pressure ratings are available?
Standard sizes are based on a 20 mm major diameter with a 6.35 mm woodruff width, offering pressure ratings up to 400 bar. Derated ratings apply at elevated temperatures or with specific seal choices.
Which fluids are compatible with Regal 20 woodruff fittings?
Compatible with hydraulic oils, water-glycol solutions, and certain synthetic fluids; aggressive acids and hydrocarbons may require stainless or specialty materials and compatible seals.
How do I determine the correct torque for Regal 20 woodruff fittings?
Follow manufacturer torque tables that account for material, plating, and seal type; always tighten in a balanced sequence to ensure even seating and prevent thread stress.
Can Regal 20 woodruff fittings be used in high-vibration environments?
Yes, when paired with vibration-resistant seals and proper installation; regular inspection and locknut or anti-rotation features help maintain leak-free performance under sustained vibration.