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Adjustable Pressure Protection Valve Adjustable pressure protection valve. Closes flow when inlet pressure drops below set pressure. Always install with adjuster downward. Part Number Inlet Port (NPT) Outlet Port (NPT) Factory Set Closing Minimum Adjustable Maximum Adjustable Notes 1300 1/4" 1/4" 60 psi 20 psi 70 psi Adjustable closing pressure 1300-45 1/4" 1/4" 45 psi 20 psi 70 psi Adjustable closing pressure 1300-80 1/4" 1/4" 80 psi 20 psi 85 psi Adjustable closing pressure

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