Positive Displacement 3 Chamber Diaphragm Pump MODEL NUMBER: 8007-543-836 (also marketed as 8007-593-836) PUMP DESIGN: Positive Displacement 3 Chamber Diaphragm Pump CHECK VALVE: (1-Way Operation) Prevents Reverse Flow CAM: 3.0 Degree MOTOR: Permanent Magnet, P/N 11-184-02 Fuse Protected, On/Off Switch, Connector VOLTAGE: 12 VDC Nominal PRESSURE SWITCH: Adjustable Shut-Off (Range 40-60 PSI) Factory Set @ 60 PSI, Turn On 45 PSI ± 5 PSI LIQUID TEMPERATURE: 170 Degrees Fahrenheit (77 Degrees Centigrade) Max. PRIME: Self-Priming Up To 11 Ft. Vertical, Max. Inlet Pressure 30 PSI (2.1 Bar) PORTS: 3/8"-18 NPT Female MATERIAL OF CONSTRUCTION: PLASTICS-Polypropylene VALVES-Viton DIAPHRAGM-Santoprene FASTENERS- Zinc Plated Steel NET WEIGHT: 4.7 Lbs (2.13 Kg) DUTY CYCLE: Continuous (See Temperature Rise Chart) TYPICAL APPLICATIONS: Agricultural Spraying 1.8 GPM open flow.