Engineered for Air Brake System Safety: The PH 369PPV002 Pressure Protection Valve. This is one genuine PH 369PPV002 Pressure Protection Valve (PPV), a mandatory safety component in any commercial vehicle air brake system. Manufactured to high standards, this 4-port valve is strategically placed to protect the integrity of the crucial primary and secondary air brake reservoirs. The 369PPV002 automatically monitors system pressure. It allows air to flow to auxiliary accessories only when pressure is high (it opens at 70 PSI). If the pressure drops due to a leak in an accessory system, it automatically closes at 60 PSI, isolating the failed circuit. This action guarantees that minimum braking pressure is maintained, ensuring driver and vehicle safety. Cross-references of the product: Freightlner PH369PPV002, Parker Hanifin 369PPV002, Automan 170.173692, and Mertor R955369PPV002 (Aftermarket). The superior design of PH 369PPV002 provides a reliable, pressure-sensitive cutoff, which is vital for compliance with safety standards and for extending the lifespan of the entire pneumatic system. Characteristics: ⦁ Part Type: Air Brake Pressure Protection Valve (PPV) ⦁ Opening Pressure: 70 PSI ⦁ Closing Pressure: 60 PSI ⦁ Port Configuration: 4-Port ⦁ Maximum Pressure: 150 PSI ⦁ Manufacturer Equivalent: Parker Hanifin ⦁ Application: Heavy-Duty Truck Auxiliary Air Systems