How does a PC pump work?
PC pumps draw fluid in through a suction inlet which feeds into an elongated casing. Within the casing are a helical rotor and stator assembly. The rotor helix is offset to the stator. As the rotor turns and contacts the surface of the stator, a series of small cavities begin to form.
How does a Mono pump work?
The heart of the Mono pump is the rotor and stator. As the single helix rotor revolves eccentrically within the double helix of the stator, a continuous cavity is formed and progresses towards the discharge end of the pump as the rotor rotates.
What is progressive cavity screw pump?
A progressive cavity pump is a type of positive displacement pump and is also known as a progressing cavity pump, progg cavity pump, eccentric screw pump or cavity pump. It transfers fluid by means of the progress, through the pump, of a sequence of small, fixed shape, discrete cavities, as its rotor is turned.
What is pump cavity?
A progressing cavity pump is a positive displacement pump employing a rotor and stator assembly to create temporary chambers to draw fluid into, which ‘progress’ through the pump resulting in the fluid being expelled through the discharge port.
What is a positive pump?
What is a positive displacement pump? A positive displacement (PD) pump moves a fluid by repeatedly enclosing a fixed volume and moving it mechanically through the system. The pumping action is cyclic and can be driven by pistons, screws, gears, rollers, diaphragms or vanes.
What are mono pumps?
Mono™ – a product brand of NOV NOV manufactures Mono™ progressing cavity pumps and pump parts and has a wide product range suitable for the pumping of fluids within the waste water, chemical, food, beverage, paper, mining, mineral processing, marine, agricultural and oil and gas sectors.
Are Mono pumps self priming?
Designed for use where low flow or transfer duties in both domestic and industrial applications are required, these units are self priming and achieve suction lifts up to 8 metres on water. Mono’s CP Range pumps provide an economic answer to many pumping duties.
What is Nemo pump?
Versatile, innovative, high-performance: NEMO® progressing cavity pumps cover a wide range of applications in all branches of industry. Progressing cavity pumps offer you continuous, pressure-stable, gentle and low-pulsation pumping of a wide variety of media.
What are the types of screw pumps?
Screw Pumps Types
- One-Screw Pump. These pumps are named as PC pumps otherwise progressive cavity pumps, and worm Pumps.
- Two Screw Pump.
- Three Screw Pump.
- Four Screw Pump.
- Five-Screw Pump.
How does a stator work?
The stator is the coil of wire housed inside the engine case. A magnet on a shaft spins within the stator, creating alternating current (AC). That current travels along fairly heavy gauge wire through the case and into the rectifier/regulator which converts it to DC power, and at a consistent output.
What is the function of a stator?
In an electric motor, the stator provides a magnetic field that drives the rotating armature; in a generator, the stator converts the rotating magnetic field to electric current. In fluid powered devices, the stator guides the flow of fluid to or from the rotating part of the system.
What is a negative pump?
A negative head pump is used where the pump will be situated either level with or above the cold water tank. It then sucks water from the tank to feed the shower. This type may be needed in bungalows, for example, where there is insufficient head below the tank.
What are monoblock pumps?
Monoblock pumps are a centrifugal pump in which fluid enters suction port and agitated inside the impeller and discharged through the large or small volute casing based on the head & discharge requirement (high speed monoblock or slow speed monoblock) Working principle.
What is Rotary Lobe Pump?
A lobe pump, or rotary lobe pump, is a type of positive displacement pump. It is similar to a gear pump except the lobes are designed to almost meet, rather than touch and turn each other.
Why are screw pumps used?
Three-spindle screw pumps are used for transport of viscous fluids with lubricating properties. They are suited for a variety of applications such as fuel-injection, oil burners, boosting, hydraulics, fuel, lubrication, circulating, feed and so on.