TPRS: Tire Pressure Regulation System
Reduced costs, improved safety
A tyre pressure refill system automatically ensures the set minimum tyre pressure on all tyres of your trailer is maintained. The advantages of constant pressure are lower operating costs of your trailer and enhanced safety. The TPRS offered by SAF is called TIRE PILOT I.Q, and the system from BPW is the AirSave. Both tyre pressure regulation systems have been proven and are widely used.
Legally approved TPRS systems
With effect from 7 July 2024, all new trailers must comply with UN ECE R141 and be equipped with a mandatory Tyre Pressure Monitoring System (TPMS) or an approved tyre pressure regulation system (TPRS). The tyre pressure regulation systems BPW AirSave and SAF TIRE PILOT I.Q. were already available on the market, but have now been updated to ensure compliance with the R141 directive.
A TPRS continuously monitors the tyre pressure and maintains it at an optimal level, even while driving. It uses the existing pneumatics on the trailer and maintains the preset pressure with a booster pump that sends air via the axle beam to the valve in the tyre. If there is a sudden loss of pressure, the system alerts the driver in real time and automatically inflates the tyre sufficiently to enable the driver to safely reach the workshop.
Application
Disc and drum brakes are both available in combination with a TPRS. The BPW AirSave system is available for BPW axles, while the SAF TIRE PILOT I.Q. can only be combined with SAF axles.
Too low tyre pressure and creeping pressure loss in the event of undetected damage are responsible for 80% of tyre failures and higher fuel costs. Tyre pressure regulation systems have been specifically developed to maintain the optimal tyre pressure of your trailer. This results in an average of 10% longer tyre life.
Constant monitoring quickly detects any defects. The SAF and BPW systems both alert drivers via a warning light in the truck. BPW AirSave also features an additional LED light on the trailer that indicates in real time when the system is pumping. The driver can reach the workshop immediately without breaking down on the way. This prevents unplanned downtime, high costs for on-site repairs or assistance and recovery costs. Installing a TPRS ensures the optimal tyre pressure is maintained and maximises the tyre life.
Fuel prices represent the largest variable cost for transport companies, which is why efficient fuel management is crucial. Lower tyre roll resistance leads to lower fuel consumption and reduces CO₂ emissions. Ensuring the tyres are correctly inflated at all times increases the fuel efficiency, reduces tyre wear and reduces CO2 emissions by around 655 kilograms per year.
Improves safety
Incorrect tyre pressure increases the risk of accidents by extending the braking distance and reducing the steering control of the truck and trailer. Maintaining the tyre pressure at the correct level not only improves driver safety but also the safety of other road users.
Benefits of TPRS:
Optimal tyre pressure at all times
Extended tyre life (10%)
Reduced fuel consumption and CO2 emissions (up to 655 kg per year)
Improves safety
Prevents trailer downtime
Improved maintenance predictability
Greater insight into the condition of your trailer
In the event of pressure loss, you can reach a workshop safely
Compliance with the legal R141 directive with an approved TPRS