The tractor protection valve is designed to close automatically when the air pressure falls into the pressure range specified by the manufacturer, typically 75 to 100 psi.50 to 75 psi.20 to 45 psi. What is the pressure range specified by the manufacturer for the tractor protection valve?
1) 75 to 100 psi
2) 50 to 75 psi
3) 20 to 45 psi