What is a progressive cavity pump?
A Progressive Cavity Pump is a typical rotary positive displacement pump, consisting of two primary components: the helical stator and the helical rotor. The metallic rotor rotates slowly within the rubber stator, pushing the fluids out of the cavity within the stator. The flow conveying process is steady and gentle, ensuring low pulsating and low shear, especially when handling high-viscosity media.
Progressive Cavity Pumps
YOUNAI progressive cavity pumps: proven reliability and optimal efficiency in viscous fluid handling ——capable of handling up to 1,000,000 cp.
Benefits of YOUNAI Progressive Cavity Pumps
Proven reliability and high efficiency for viscous fluids conveying, capable of handling medium with different viscosity levels and chemical properties——from sludges to sensitive viscous mixtures.
Deliver a uniform, metered and low-pulsating flow
Low shear movement, gently conveys viscous mixtures
Reversible rotation capability, from 3 bar to 12 bar
High efficiency viscous pumping solution
Provide constant flow at varying viscosity and pressure
Excellent self-priming capability, low NPSH
Versatile solutions for multiple industries
Maintenance-friendly, without disassemble pipes
Application of Progressive Cavity Pumps
Collecting concentrated sludge, transferring thickened sludge, feeding sludge to storage silos, transporting sludge to drying equipment, transporting sludge to incineration units.
Engineered for the petroleum industry with full API compliance, including mechanical seals and flushing plan conform to API standard. Apart from oil & gas industry, also widely used in the processing of water coal slurry, water coke slurry, and slime.
Beyond viscous fluids, reliably handles complex medium such as liquid-solid suspensions (including those with solid particles or short fibers), liquid-gas flows, thick sludges, high-viscosity mixtures, high-consistency slurries.
YOUNAI: Your Trusted Partner in Progressive Cavity Pumps
YOUNAI manufactures and suppliers industry-leading progressive cavity pumps and tailored auxiliary systems, including dry running protection, bypass valves, control panels, inverters, heating jackets, grinders, and more.
For Corrosive Environments: We provide customized solutions with specialized materials to resist corrosion and ensure long-term reliability.
For High-Pressure Demands: We design and build high-pressure progressive cavity pumps to meet your specific pressure requirements, enabling reliable transfer in the most demanding processes.
Progressive Cavity Pump - Key Components
Industry-leading design, precision-machined to every detail, builds YOUNAI’s high-quality progressive cavity pumps. Ensuring the successful transfer of viscous, shear-sensitive fluids, delivering a constant capacity with variable pressure.
Rotor materials are available in carbon steel, stainless steel, duplex stainless steel, super duplex stainless steel, and titanium alloy to meet specific pressure and corrosion demands. YOUNAI rotors, manufactured to exceptional standards of precision, ensure a longer service life, lower vibration, and near-silent operation.
Stator materials are available in FKM, NBR, EPDM, FPM, HNBR, Hypalon, PTFE and PFA.
YOUNAI progressive cavity pumps: superior precision, proven reliability, and high efficiency in every viscous fluid process. Its leading-edge rubber sleeve design provides excellent tolerance for abrasive solids. Combined with an even wall thickness and a highly precise cavity profile, this design ensures exceptionally accurate flow output.
Flange connections design compliant with ANSI/ASME B16.5. Available in materials such as carbon steel, stainless steel, or with an anti-corrosion coating.
Composed of universal pin joint, intermediate shaft, and universal joint seal. This unit bears the eccentric torque generated by the pump rotor and the axial thrust from the drive shaft. The universal joint seal protects the internal components from contact with the media and retains the lubricant within.
Absolutely not. In a progressive cavity pump, the pumped media is essential for lubricating the close-tolerance fit between the metallic stator and rotor. Dry running quickly leads to excessive heat buildup and rapid stator failure. For applications with poor fluidity of the medium that can lead to an empty line, we recommend a dry-running protector. This device will automatically shut down the equipment and trigger an alarm.
Progressive cavity pumps are ideal for coal water slurry (CWS) for two key reasons. 1. CWS is a mixture of coal fines, water, and a certain amount of additives, which aligns perfectly with the pump’s capability to handle multiphase mixtures. 2. During the transportation of CWS, it is necessary to avoid the formation of soft precipitates and stratification. The pump’s constant cavity volume and gentle, non-pulsating flow keep the mixture in suspension to avoid agitation. This process also aids in the homogenizing (“aging”) of the slurry. Therefore, progressive cavity pumps are well-suited for coal water slurry transfer.
Progressive cavity pumps are suitable for handling viscous mixtures. they deliver a constant flow despite variations in viscosity and pressure, and have a low failure rate. Progressive cavity pumps are widely used in the petroleum industry for applications such as crude oil extraction, crude oil transfer, hydrocarbon sludge, and catalyst slurry handling. YOUNAI’s progressive cavity pumps are manufactured in full compliance with the API 676 standard and are extensively utilized in oil and gas processing, refineries, and other petroleum industry applications.
Reversible operation, allowing the sealed end to serve as either the medium suction end or the discharge end. The discharge port is flexible, with three options available to meet different needs of customers. Progressive cavity pump simplifies piping via flanges. The suction flange has three mounting orientations: vertically up, horizontal left, or horizontal right.
Due to its unique helical structure, the rotor and stator fit tightly to create an effective seal, enabling the progressive cavity pump to self-prime. No need for a foot valve or other devices in the suction line, while still delivering strong self-priming performance, with a maximum suction height of up to 6 meters.
- Compact & Efficient: A shorter, lightweightdesign that reduces energy consumption, delivering a competitively priced viscous pump;
- Reliable& Robust: Exceptional stability ensures vibration-free, and near-silent operation operation;
- Long lifespan: Extended lifespan with simplified maintenance, ensuring durablecritical partsfor minimal downtime;
- Customized manufacturing,comprehensive services: Customizable lengths, vertical installation options, multi-coat epoxy protective painting for harsh and corrosive environments.
