A vane pump works by compressing volume to increase pressure and create vacuum. Vane pumps can handle low-to-medium viscosity fluids such as propane, gasoline, fuel oils, solvents, ammonia and refrigerants. They have no metal-to-metal contact, which allows them to operate at peak performance with non-lubricating liquids.Know More
Vane pumps are available in a variety of configurations, including a sliding vane pump, flexible vane, rolling vane, swinging vane and external vane. Vane pumps are known for their dry priming, good suction and easy maintenance. Each type of pump is needed for certain jobs: For instance an external vane pump can handle large solids, whereas a flexible vane can only handle small solids.
According to Pump School, a slotted rotor is fitted onto a cycloidal cam. The rotor is located close to the wall of the cam and creates a crescent shaped cavity. Two side plates seal the cam in on both sides. Blades are fitted to the impeller and as the rotor is turned, fluid enters the pump. The centrifugal force, hydraulic pressure and push rods then push the blades closer to the wall of the housing. The cam and housing push fluids into the pumping chamber via holes in the cam. As the rotor spins, the blades move the fluid to the opposite side where it is squeezed through the discharge holes in the cam, exiting through the discharge hole.Learn more about Plumbing
The tank's cut-in and cut-out times are used to obtain the acceptance factor, multiplying the pump's output by its desired runtime and then dividing product of the output and runtime by the acceptance factor. As a standard, there should be two minutes of motor free operation for a 1hp pump.Full Answer >
The pressure switch to a well pump may shut down a well or cause the water not to flow, especially if both the switch and a pressure tank are affixed to the system. Both parts can cause an over-circulation of water, which, in turn, shuts down a system. The shut-off measure is a safeguard in case a pipe breaks while water is being pumped from the well.Full Answer >
A submersible pump uses a motor in a watertight housing to drive a pumping mechanism that pushes a column of liquid to move to another location. The sealed housing allows the pump and motor to be placed inside the fluid it pumps without damaging the electric motor.Full Answer >
The residential water well owner should set the pressure in a bladder tank at 2 pounds per square inch lower than the cut-on pressure for the well pump. A tire pressure gauge placed on the valve at the top of the tank can check the pressure.Full Answer >