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The Progressive Cavity Pump Replacement Parts
The replacement spare parts for NETZSCH, MONO, SEEPEX, ... Can highly match with the well-known progressive cavity pumps
What are PC Pump Parts?
PC Pump Parts means the basic parts of a progressive cavity pump. Generally, when people mention PC pump parts, they normally refer to the wearable and replaceable parts on the progressive cavity pump. Well, the main basic pump parts include the Pressure Branch, Pump Rotor, pump Stator, Suction Casing, Coupling Rod, Driving Shaft, Universal Joint Set, etc.
What does a PC Pump mean? PC Pump usually refers to Progressive Cavity Pump or Progressing Cavity Pump. A progressive cavity pump is a type of positive displacement pump that works on the basis of the progress of the rotor. It is specially designed to handle highly viscous fluids and it is used for extremely tough pumping applications.
What kind of PC pump parts we can supply?
Top Level Intl. supplies the generic replacement of PC pump spare parts for some well-known PC pump brands like NETZSCH, SEEPEX, MONO, ALLWEILER, etc. The progressive cavity pump parts we supply are accurate and can highly match the mentioned original PC pumps and their universal aftermarket spare parts with equivalent service life.
Certainly, OEM machining service is available. When you have similar pump parts for other brands of progressing cavity pumps to process, we can also manufacture them based on your drawings or samples. Custom pump rotor, stator or other components can be manufactured as requested.
Beside the replacement spare parts for NETZSCH/MONO/SEEPEX pumps. We can also offer bareshaft pumps accordingly that are compatible with your existing pump systems.
The Application of PC Pumps
The progressive cavity pump is just one name of the type of pump. It also has many other different names, such as progressing cavity pump, PC pump, cavity pump, progg cavity pump, screw pump, eccentric screw pump etc.
A progressive cavity pump is widely used. Besides the general pumps, there are also food hygiene pumps, dosing pumps, bearing house pump, hopper pumps, bearing house&hopper pumps, bridge breaking pump, vertical pumps, adhesive pump, etc. Below it’s the internal structure of a progressive cavity pump.
We Supply the Universal Replacement Spare Parts for Single Screw Pumps
Progressive cavity pumps usually work in viscous fluid and mediums containing solid particles. In this condition, natural wear is normal and unavoidable. In addition, some abnormal damage will also cause some parts to be replaced. What we supply is the universal replacement of after-market spare parts for the popular progressive cavity pump brands. The brands are mainly NETZSCH, MONO, SEEPEX, ALLWEILER, etc.
For a single screw pump, the wearable and replaceable components are the helical rotor, stator, coupling rod, driving shaft, sealing part and the universal joint set. These universal parts need to be replaced regularly. Generally, we supply all the replaceable pump parts below with a full range of models:
The Progressive Cavity Pump Stator
The stator is one of the main parts of a progressive cavity pump. PC pump stators usually consist of two items: the shell and the lining. Specifically, the shell material normally is metal. For example, carbon steel with painting or stainless steel. And the lining is made of rubbers. According to your pump applications, you can select a type from NBR, HNBR, KFM, EPDM, PTFE, etc.
Top Level supplies the replacement parts of Netzsch Stators, SEEPEX Stators, MONO Stators, ALLWEILER Stators, etc. They are equivalent to the original pump stators of NETZSCH PC Pump, SEEPEX PC Pump, MONO PC Pump, etc. and can highly match with the original rotors of these branded progressive cativy pumps.
The Progressive Cavity Pump Rotor
The progressive cavity pump rotor is also known as the main shaft of a PC pump. It is mostly made of various grades of steel or stainless steel. For steel types of PC pump rotors, they would be chromium plated or treated as request. Don’t hesitate to contact us and discuss the material type in accordance with your PC pump application.
The Coupling Rods of Cavity Pumps
The coupling rods are metal pump spare parts connecting the rotor and the driving shaft in a progressive cavity pump. In the eccentric screw pumps, the coupling rods are driven by the driving shafts when the motors are running. And then, the coupling rods drive the pump rotors to transmit the mediums.
The Driving Shaft of Progressive Cavity Pump
The drive shaft is a metal pump part that locates between the coupling rod (by the universal joint set) and the driving end, such as a reducer or various drive motors. It’s also a replaceable pump spare part. The drive shafts usually are corrupted by natural wear or media changes in working conditions.
The Coupling Joint Set
The universal joint set is also known as the universal joint assembly. It consists of a group of spare parts and locates at both ends of the coupling rod. Generally, it successfully connects the rotor and the driving shaft to the coupling rod more stably and firmly.
When the pump is running, the rotor makes planetary motion, and its axis is not on the same straight line as the axis of the driving power source. In this way, a special set of components must be designed between the rotor and the drive shaft so that the drive shaft of the power source can drive the rotor to complete such planetary motion. Well, such a group of pump parts are called the universal joint set.
FAQs about Progressive Cavity Pumps & Spare Parts Replacement
The pump rotors run and fit with the stators in a progressive pump system. Similar to the pump stators, the PC pump rotors also wear out somewhat in the pumping work. But its wear speed is slower than the pump stator. Therefore, sometimes, you only need the pump stator spare parts or the pump rotor replacements. For fluids that do not contain solid particles, one pump rotor can easily outlive 3 or even 4 stators.
However, in certain cases, we suggest you replace both the rotor and the stator at the same time to guarantee optimal performance and avoid premature wear on the newly replaced stator. For example, when there is defective seaingl between the former rotor and the new pump stator, some hard particles found in the fluid may cause leaking risk in the pump system. That would result in greater wear on the new stator replacement part.
The progressive cavity pump (PC Pump) is a positive displacement pump. It is a highly versatile pump that can be used in many different pumping applications. PC Pump offers all the advantages of a positive displacement pump but it is different from a centrifugal pump and less commonly used.
When pumping water-like fluids with low viscosity or when a fixed flow and constant discharge pressure are basically requested, a centrifugal pump is a good and economical choice instead of the progressive cavity pump. A well-applied centrifugal pump will offer many years of reliable service in simple pumping applications.
No. They are forbidden to dry run. PC pumps are highly effective at pumping different types of fluids as long as you keep them in ideal working conditions. One main reason for these pumps to fail is when they lose the necessary lubrication to keep the rotor and stators operating correctly.
When there is a loss of lubrication of the pumped fluid, it causes excess friction and high temperature on the surface of the stator. Then the pump stator would be destructed by dry running. Please remember that dry running is the most common cause of pump failure. So progressive cavity pumps (PC Pumps) are not allowed to dry run and we should take some actions to prevent the progressing cavity pump from dry running.
There are many practical methods to prevent the progressing cavity pump from dry running. Don’t hesitate to click and read the details in the post How to prevent the progressing cavity pump from dry running?
Yes. Progressive cavity pumps (PC pumps) are self-priming. The progressive cavity pump was designed to pump almost any kind of fluid with no separation disturbance at a uniform discharge flow. Due to the tight tolerances in its construction, progressive cavity pumps are great at self-priming. It has high suction capabilities priming up to 8M (with a corresponding low NPSH) depending on the size, the number of stages and pump speed.
Frequent maintenance may mainly be caused by pumping system problem, improper pump model selection or incorrect material selection of the pump parts.
- When the problem is from the pumping system, the most common fault it causes is pump dry grinding.
- While improper PC cavity pump model would make the spare parts wear out quicker, or even fail to work sometimes.
- When you select the improper raw materials for the pump parts, the spare parts may easy to corrode and wear quickly. Then they would have a much shorter service life.
Anyhow, please don’t hesitate to reach us and ask for a suggestion when you face the frequent maintenance problem. We would share with you a valuable solution before you buy the cavity pump replacements.
Well, when there is a problem with your progressing cavity pump. You need to firstly check what the problem is and which part caused the problem. Normally, you need a professional staff to disassemble, check and replace the damaged parts when the flow rate and pressure decrease, or there is abnormal noise in the pump or the pump fail to rotate, etc. When the damaged part is found, the professional staff would tell you the damaged part number or part name.
