The Euclid Suspension Ride Height Control Valve is a pneumatically operated valve that is designed to regulate the air pressure in the suspension air bags. It is made of high-quality materials such as brass, aluminum, and steel to ensure durability and resistance to corrosion. The valve operates on the principle of pressure differential. When the vehicle is loaded, the weight compresses the air bags, which causes the air pressure to increase. The increased pressure is sensed by the ride height control valve, which then opens to release excess air, thereby maintaining the correct ride height. Conversely, when the vehicle is unloaded, the air pressure in the bags decreases, causing the valve to close and retain more air, thereby raising the ride height. FleetPride is your First Click in Heavy Duty®.