The Haldex Push-Pull Parking / Emergency Hand Operated Air Valve is designed to provide reliable and safe operation in a variety of applications. This valve is constructed with a corrosion resistant aluminum body and stainless steel internal components, making it highly reliable and durable. The valve is designed to operate at a pop pressure of 35± 10 psi. This valve is ideal for use in parking and emergency applications, providing a reliable and safe solution. FleetPride is your First Click in Heavy Duty®.