Working Principle and Structure and Progressive Cavity Pump
PC pump as a type of positive displacement pump works based on the interference fix between the stationary stator and the eccentric turning rotor. This interference movement forms several separated and air-proof cavities, running from the inlet to outlet along the axis because of the rotor's rotation, which results in the medium's continuous conveyance in cavities.
For the special structure and working principle, PC pump is the most suitable for the conveyance of various medium of solid particle or fiber, viscous, corrosive, shear-sensitive, mixture of gas and at different temperature.
Advantages of mixture conveyance as following
1.Flow amount and pressure calculation of multi-phase mixture conveyance pump
2.Saving one gas pipeline, greatly reduce the initial investment.
3.Reduce the pipeline pressure before pump, reduce the quantity of reflux and improve extraction efficiency.
4.Reduce down hole pump load and maintenance cost, prolong service life.
5.Improve the pipeline pressure after pump, high transportation efficiency and increase output.
The typical layout of multiphase oil and gas conveyance pump system on one skid-mounted platform
1. Safety Valve(Pressure Relief Valve)
Safety valve is usually installed at the outlet with high pressure. It will automatically open when the outlet pressure exceeds the set point, and return medium to inlet or other lower pressure area to release the pressure at the discharge end.
2. Check Valve(One-way Valve)
High pressure exists at the pump outlet. The medium will have the force to reverse the rotor when the pump stops, then result in motor's running in the opposite direction, which is dangerous. Check valve is to isolate the high pressure medium and outlet to protect the pump system.
3. Pressure Sensor
Pressure sensor installed at the inlet or outlet to monitor and convey the pressure value to the control system. The pump will stop automatically through the control system to protect itself, when the pressure value exceeds the pre-settings.
4. Basket Filter
Installed at the inlet, the basket filter is used to filter out big solids and sand in crude oil in case of blockage to the pump suction.
5.Stator Protection Device from Dry Run
It's used to measure the rubber's temperature, and the temperature controller will gives alarm or stops automatically when the actual temperature exceeds the pre-set value.
Shaft Seal
Various mechanical seal are offered for different working conditions.
Also there are various types and materials to choose for mechanical seal.
brand Eagleburgmann mechanical seal are used for the well-known of
reliable and endurable operation.
The most widely used type of mechanical seal
1. Single Mechanical Seal(MG1,M7N,HJ977)
2. Double Mechanical Seal(M74D, Single Mechanical Seal Back to Back Installation)
3. Cartridge Mechanical Seal
4. Material of mechanical seal: Q2Q2VGG or U2U2VGG,etc.
Driving System
Gear Reducer and Motor
To ensure the pump reliable operation, the gear reducer and motor of SEW brand and NORD brand is strongly recommended for the outstanding advantages of low noise, no vibration, safety working and well-known high quality and reliability.
Explosion-proof Motor
Usually, explosion-proof motor of Dazhong or Xianda brand is recommended. ABB brand is also available, if necessary. Protection class IP55, insulation class F, explosion-proof class DIIBT4 or DIICT4.
Inlet and Outlet Connection
Flange connection, Threaded connection, Quick Release Clamp Connection, Hopper Connection are for your choice. We can do according to your requirements
Flushing System
Different flushing systems are available for individual working condition, according to API682 standard, such as Plan 31, Plan 53A, or Plan 54.
The goods are offered with standard plywood case, no need of fumigation, suitable for long distance transportation. Excellent protection your goods from damage.
The goods can be transported by sea, by train, by air or by the combined transportation modes as your requirements.
Our Services
Our professional after-sale engineers are ready to provide solutions for you at any time.
Services include
•Training operators
•Fast response and solution to solve clients' problems
•Commissioning, maintenance and repair
•Technical consultation and spare parts purchase suggestion
Key products: Progressive Cavity Pump, Grinder Macerator, Directional Drilling Mud Motor Power Section, Down Hole PC Pump, Stator Core and the relevant spare parts and services.
Every year, we attend the international professional exhibitions related to pc pump, not only for better service of
FAQ
1.
We are one of the most professional manufactures in progressive cavity pump and the relevant spare parts, a joint venture company with GmbH.
2. Where is your company and is it convenient to visit your company?
We are located at Weifang City, Shandong Province,, and it only takes about one hour from Qingdao airport to
3. Why do we choose your company as the partner?
² GmbH expansion project, German pumping technology, leading standards worldwide.
² Technology is ’s core competitiveness. Customized pumping solutions for your individual requirements.
² T he most advanced production facilities directly imported, like PS 1000 multifunctional helicoidal CNC. Excellent equipment is the basic guarantee for quality products in.
² Unique stator rubber formula with outstanding advantages. German original stator is also available.
4. How long will it take to receive your orders?
Usually we arrange the shipment within one week if in stock.
It takes about 4-8 weeks for the new production. (According to the order quantity)
5. What’s your acceptable payment mode?
T/T
6. What’s the package?
The goods are offered with plywood case, no need of fumigation.
Excellent protection your goods from any damage.
7. How do you deal with client’s quality complaints? We are always responsible for every customer. Once any quality complaint, our professional after-sales service engineer will contact you and help you to solve the problems as soon as possible.
How could you find the most suitable pump? Please offer us specific information as much as possible.
1) Medium details: medium temperature, viscosity, solid content, abrasive and corrosive property, welling property,etc.
2) Pump capacity 3) Pump pressure (head) 4) Outlet and inlet pipe diameter and the transportation distance
5) Working site condition (indoor/outdoor, explosion-proof)
6) If possible, please provide more details about the pump you are using at present.
The price and delivery time shall be determined according to the actual situation!!!
Wang WeiCheng
Sales Engineer



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Step 1
Payment and order readiness
Minimum order: 1 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
50 days
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Step 3
Packaging and dispatch
Ocean freight via Maersk · Approx. shipping fee: $ 0.84 for 1 unit · Transit time: Est. 17-24 days
Final packing, freight, and delivery dates are confirmed before dispatch.
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