Progressive Cavity Pump Rotors


What Is Progressive Cavity Pump?
A Progressive Cavity Pump is a form of positive displacement pump that features a rotor that rotates within a stator housing. The rotor is always constructed of metal, whereas the stator is made of a rubber-like substance.
- Rotor: A rotor is a screw-shaped component that is often composed of steel or similar strong metal. It’s made to fit snugly inside the stator.
- Stator: The stator is a hollow, cylindrical component that has a helical cavity. It’s frequently constructed of a rubber-like substance, which allows it to keep a tight seal with the rotor.
P.C. Pump Production Process
The progressive cavity pump rotor is an essential component of the progressive cavity pump. Its machining precision and technology are relatively stringent, and it is produced using a particular CNC machine tool. Following that, we will go over the eight processes of progressive cavity pump rotor processing.
- Cutting: Blanking in accordance with the drawings
- Creating blank: Rough machining of the blank per the sketch
- Punch: Drill the rotor’s root as shown in the figure.
- Remove the rotor: Place the finished blanks on the CNC whirlwind milling machine to be processed.
- Gleaming: Rotor preliminary polishing
- Heat treatment or electroplating: Depending on the actual operating circumstances and needs, the rotor surface may be electroplated or heat treated.
- Polishing to a high shine: Rotor repolished, electroplated, or heat-treated
- Packaging: Pack and prepare your items for shipment.
What Are The Applications of P.C. Pump ?
Applications for units can be found across a range of industries and include:
- Wastewater –Thickened and treated sludge transfer and polymer dosage.
- Oil & Gas – Cutting Transfer, Drilling Mud Transfer and Recovery, Separator Feed, Crude Oil Transfer, MOL (Main Oil Line Pump), Multiphase Transfer and Injection in Remote Areas.
- Biogas – Digestate feed & Biomass transport.
- Paper and Pulp – Pulp transfer, recycled paper transfer, filler transfer, fixative and dye metering.
- Edible Oil – Crusher feed, oil malaxing (mixing), oil extraction, oil separator feed, filter press feed are all examples of edible oil.Wine Tank Decanting
- Wine – Wine processing includes wine filtration, grape pressing, and must and pomace transfer.
Progressive Cavity Pumps Vs Screw Pumps
A screw pump is commonly a three or two rotor screw pump. These are different from progressive cavity pumps in that they generally pump lubricating fluids. Screw pumps are made entirely of metal and are often utilised with nonabrasive fluids. They can also pump at far higher discharge pressures than a progressive cavity pump. Screw pumps are commonly powered by direct current motors.
Both progressive cavity pumps and screw pumps have the benefit of pumping about the same flow regardless of discharge pressure or variation in discharge pressure. The flow rate of centrifugal pumps fluctuates dramatically as the discharge pressure changes. Both the PC and screw pumps have minimal to no pulsation. Both progressive cavity pumps and screw pumps have the problem of not being able to run dry without being harmed. They cannot also pump against a closed discharge since they would be destroyed.
Advantages of a Progressive Cavity Pump
A Progressive Cavity Pump is a form of positive displacement pump that features a rotor that rotates within a stator housing. The rotor is always constructed of metal, whereas the stator is made of a rubber-like substance.
Progressing Cavity pumps are employed when a product must be treated delicately, and they are utilized in all industries to carry practically all forms of media continuously, smoothly, with little pulsation, and with dosing proportional to speed. They are used in dosing applications where precision is essential (multi stage pumps). Their range includes the smallest dosing pumps with flow rates of a few ml up to high-performance pumps with flow rates of up to 1000 m3/h.
Advantages of a Screw Pump
A Progressive Cavity Pump is a form of positive displacement pump that features a rotor that rotates within a stator housing. The rotor is always constructed of metal, whereas the stator is made of a rubber-like substance.
Progressing Cavity pumps are employed when a product must be treated delicately, and they are utilized in all industries to carry practically all forms of media continuously, smoothly, with little pulsation, and with dosing proportional to speed. They are used in dosing applications where precision is essential (multi stage pumps). Their range includes the smallest dosing pumps with flow rates of a few ml up to high-performance pumps with flow rates of up to 1000 m3/h.
Progressive Cavity Pumps Production Machine
WhirlingMachine has designed a range of machines specifically for the oil field business to create specialised rotors for downhole Progressive Cavity (PC) pumps. WhirlingMachine has created a high-end production solution by combining an exceptionally heavy-duty long bed machine, then merging it with a high powered, high rpm Torque Motor Peeling head and an innovative tool system. Now, eccentric screws, pump rotors, plastic injection shafts, and ball screws may all be machined in a single configuration.