Tectran Proportioning Air Relay Valve, 1/4 in Inlet, 150 psi Pressure, -20 to 200°F Temperature, 1.5 psi Cracking Pressure

Introducing Tectran's Proportioning Valve by Williams' Control. This three-way, compensating, pilot pressure-operated relay valve is highly versatile, delivering an output pressure proportional to the amount of control pressure applied, making it suitable for various applications. Commonly used as tractor protection valves in Tractor-Trailer braking systems, these relays play a crucial role in protecting the brake system pressure by exhausting the control signal through the service treadle, preventing it from escaping downstream through an open service line. The valve's adjustable output/control pressure ratio ranges from 1.3:1 to 0.8:1, allowing for balancing trailer brake pressure with the tractor brake system. Equipped with 3 1/4 in NPT ports, it ensures reliable connections. With a maximum operating pressure of 150 psi and an operating temperature range from -20°F to 200°F, this valve is built to withstand challenging conditions. The valve has a cracking pressure of 1.5 psi with a 100 psi supply, ensuring precise and responsive performance. Upgrade your braking system with Tectran's Proportioning Valve by Williams' Control, a versatile and reliable solution for maintaining control and safety in Tractor-Trailer setups.