Product Name: Rl-4203 Series 12V 24V DC High Pressure Submersible Diaphragm Water Pump Model NO.: RL-4203 Performance: Automatic Pump Diaphragm Material: Santoprene Power: Electric Material: Stainless Steel and Plastic Voltage: 12V Rated Current: 7A Start up: Magnetic Pump Media: Water Pump Theory: Electromagnetic Pump Flow Rate: 9.5lpm/1.2gpm Pressure: 80psi/5.5bar Duty Cycle: Intermittent Type: Positive-Displacement Pump Industry: Cleaning Water Pump Port Dimension: 3/8'npt*2/5barb or 1/4NPT*1/2bsp AMPS: 7.0A Trademark: swiftflo Transport Package: 1PC/Inner Box, 10PCS/Ctnstrong Cartons Specification: Colour box / White box 260*135*105mm Origin: Fujian, China HS Code: 8413509090 Product Description RL-4203 Series 12V 24V DC High Pressure Submersible Diaphragm Water PumpApplication1. Agriculture/Yacht / RV/Caravan pressurized water system2. Sprayer fixture (Vehicle-mounted sprayer, electric sprayer)3. Cleaning machine, Humidifier, Water purification, Medical apparatus4. Food beverage filling & liquid transfer5. Any other pressurization systemBacked1-Year Warranty!Colors: Balck or requiredHow a Diaphragm Pump WorksThe pump is driven by an AC or DC motorIn front of the motor is a valve assembly containing two to five valve pump chambers. Each valve chamber has a diaphragm behind it in the lower pump housing. As the motor shaft turns, an internal cam positioned behind the diaphragms causes the diaphragms to be pushed forward, then back in a continuous sequence creating a suction. As this suction builds, fluid is pulled through the inlet, through the various valve chamber check valves to the outletThe volume of flow is determined by several factors including: the number and size of the pump chambers, cam offset, operating pressure, fluid viscosity