Elbows
Types of Elbow Fittings
Elbow fittings are used to change the direction of hydraulic or pneumatic lines while maintaining a pressure-rated connection. They are selected to fit routing constraints and reduce stress on hose/tubing in tight layouts.
- Elbows used for 90-degree direction changes in compact routing.
- Elbows selected to match port/thread standards and sealing methods.
- Elbows used where hose/tubing bend radius and clearance are limiting factors.
For straight connections, see Nipples and Connectors.
Key Selection Criteria for Elbow Fittings
- Thread and sealing method compatibility with both connected ports.
- Pressure rating and temperature requirements.
- Orientation and clearance requirements for installation and tightening.
- Flow requirements and potential restriction considerations.
- Material compatibility with media and environment.
Choosing the correct elbow helps maintain routing clearance without compromising sealing integrity.
Frequently Asked Questions
When should I use an elbow fitting in a fluid power system?
Use an elbow when the line must change direction and routing clearance or bend radius limits prevent a clean hose/tube route.
What should I confirm for elbow orientation and clearance?
Confirm required angle, port locations, and clearance for tightening and service access, then match thread and sealing method to the system standard.
How do elbows affect flow and pressure drop?
Elbows can add restriction depending on size and system flow. Match fitting size and flow needs to avoid unnecessary pressure drop in critical circuits.