Central Tyre Inflation (CTI) Seals
Enabling Reliable Tyre Pressure
Control in CTI Systems
Central Tyre Inflation (CTI) systems enable operators to optimise tyre pressures for changing operating conditions, helping improve vehicle mobility, traction, tyre life, fuel efficiency and operator comfort.
Modern CTI systems are increasingly sophisticated, using automated pressure management to inflate, deflate and monitor tyres while the vehicle remains in operation. However, these benefits depend on reliable air transfer between stationary and rotating components.
As the primary air transfer interface, the rotary seal is a critical risk point in any CTI system.
A loss of sealing integrity can compromise wheel valve actuation, pressure monitoring and overall system reliability, (mobility) making seal selection a critical consideration during vehicle and axle development.
The Challenge
Reliable Sealing in CTI Systems
CTI systems place unique demands on rotary sealing technology.
While often overlooked, the rotary seal plays a critical role in system performance. It must maintain exceptionally low leakage not only at operating pressures up to 12 bar, but also at very low pressures and, in some cases, under vacuum conditions during tyre deflation.
Even minor leakage can affect pressure control, wheel valve operation and overall system reliability.
CTI SEALING CHALLENGES
1
2
3
4
5
The Solution
CTI Seals Designed for Reliable System Performance
CTI 0574 Shaft SEAL
- Optimised for efficient manufacture
- Improved operational compliance
- Excellent air and oil separation capability
- Compact design for simplified integration
Developed to deliver reliable CTI performance in harsh operating environments
cti 0618 Shaft seal
- Rubber-coated outer diameter for enhanced sealing
- Excellent air and oil separation capability
- Oil-free capability on the air side
- Suitable for integrated CTI systems and driveline applications
Designed for applications where sealing efficiency and air/oil separation are critical
APPLICATION FOCUS
Designed for integration into:
Military
Reliable sealing solutions for mission-critical mobility applications operating in harsh and unpredictable environments.
Agriculture
Enabling tyre pressure optimisation to reduce soil compaction, improve traction and increase operational efficiency.
Off-Highway
Supporting improved tyre life, fuel efficiency and vehicle performance across demanding working environments.
TRUSTED BY LEADING OEMS
Engineered for CTI Reliability
FTL CTI seals are engineered to perform across the full range of conditions encountered in vehicle tyre inflation systems.
•
Proven seal designs
•
•
Trusted by Leading Vehicle and Axle Manufacturers
•
Experience Across multiple CTI Platforms
Application and intergration Support:
•
•
•
CTI PERFORMANCE
Enabling the Benefits of CTI Systems
The performance of a Central Tyre Inflation system depends on reliable air transfer and pressure control. By maintaining sealing integrity between stationary and rotating components, FTL CTI rotary seals help OEMs realise the full benefits of CTI technology, including:
•
•
•
•
•
•
•
