Height Control Valves
Link's mechanical height control valves are engineered to be the most reliable valve on the road. Each valve has been tested with the highest quality standard and manufactured with proven materials to offer consistent performance. Our extensive range of mechanical valves provide safe, easy and economical solutions for cab, chassis and trailer suspension applications. Whether you need a valve for a truck, trailer, or RV, you can be confident that a Link valve is built to perform in the most challenging conditions.
On March 9, 2021 Link acquired Hadley Product Corp.'s entire portfolio of legacy mechanical height control valves and suspension control products in a strategic move to expand industry capabilities.
Link’s SmartValve is the first of its kind, an all-in-one electronic height control, eliminating the need for separate components that make up other electronic systems, reducing cost, preventing injuries, and saving fuel.
Link’s 1500 Series - All Makes Valve is designed specifically to meet the needs of the tractor, trailer and transit industries. The 1500 Series mechanical height control valve offer flexibility in mounting, plumbing and lever attachment. The valve is compact and lightweight with a modular design. With zero pressure, pressure actuation and non-dump configurations, drivers and fleets can ensure that they have the ideal suspension control system for their applications.
The 650 Series Mechanical Height Control Valve provides an aid for the ride and protection of tractor cabs required by today’s transport industry. The sturdy height control valve series provides the ideal cabin leveling solution, fitting most tractor cab suspension applications.
Link’s 600 Series Height Control Valve is a combination of quality materials and construction, delivering the industry-best height control valve solution for most cabin or light duty chassis applications. The valve series provides everything drivers and fleets demand from a height control valve, providing the best in suspension leveling.
Link’s 500 Series height control valve provides distinct advantages for individuals, truck drivers and fleets. With the highest flow rate in the industry, this 500 series offers a conduit for ideal driveline angle and maximum stability for the driver and the vehicle. Engineered as a versatile dump and non-dump valve for tractor and trailer applications and a number of Class A RV applications.
The 450 Classic Valve is a versatile Non-Dump height control valve designed for nearly any tractor and trailer application, as well as several Class A RV applications. Engineered specifically to meet the needs of the transport industry, the valve allows for a smoother, level driveline angle for the tractor and trailer.