In the field of materials handling, progressive cavity pumps are successfully used for tasks that exceed the technical possibilities of pumps of conventional design. They have decisively expanded the range of available conveying systems and are used for conveying highly viscous, abrasive and corrosive media. The components of the progressive cavity pumps are the fixed stator and the rotating component, the rotor. Rotation and the design of both components create chambers through which the respective media are transported from the suction to the discharge side of the pump. To get more news about screw pump stator, you can visit hw-screwpump.com official website.
Stators consist of a steel jacket lined with rubber. The composition of the rubber compound in the stator depends on the requirements of the progressive cavity pumps and the medium to be pumped.

In materials handling technology, not only the abrasion behaviour but also the given physical, chemical and thermal medium properties are important factors that affect the composition of the material in the stator. The rubber mixture is therefore composed in such a way that the material wear of the stator is kept as low as possible. This increases the service life of your stators and prevents costly failures.
In paper mills, pulp, groundwood, glue and paint must be conveyed by means of stators. These are media of crumbly consistency, medium to high viscosity and chemical aggressiveness. The stators from Artemis guarantee a long service life of the progressive cavity pumps.In the food industry, eccentric screw pumps are replacing old, manual processes in the harvesting of grapes, fruit and olives. They are also used in the dairy industry or in the confectionery industry to convey highly pasty masses such as chocolate, marzipan and dough. Our materials and stators used in the food industry meet the strict requirements and quality standards of the food law thanks to our quality controls.
Petroleum industry
Downhole pumps in the field of crude oil production offer a high degree of economic efficiency compared to traditional pumping equipment. Thanks to their easy installation and maintenance, good controllability and high efficiency under difficult pumping conditions, there has been a worldwide increase in the number of pumps. To reduce long downtimes and costs caused by premature failures, we have developed special abrasion-resistant materials for the stators of the downhole pumps. The geometries are fine-tuned to the expected geological temperatures. We offer you complete systems as well as a relining service for worn stators.
Dosing technology
In the electronics industry in particular, ever smaller components must be bonded or encapsulated. One of the main tasks of stators is therefore to convey very small quantities of various media with a high degree of repeat accuracy without dripping. Due to the composition of the materials specifically adapted to the media, our stators achieve the highest possible chemical resistance!

Construction industry
Especially in the construction industry, the screw conveyors have to convey extremely abrasive substances. Artemis offers stators of various designs with a rubber or plastic casing or slotted steel tube for retensioning to prevent wear and tear of the progressive cavity pumps as far as possible. We develop solutions for you so that we achieve an optimum service life for your progressive cavity pump!

Chemical industry
In the chemical industry, the resistance of the stator's elastomer must meet the highest demands. Media to be pumped can be all kinds of substances, such as filter cake, which has hardly any liquid properties, sludge and many other chemical substances. Our sales teams and laboratory technicians will support you in selecting the appropriate compounds for your application. Our resistance list has proven to be a useful tool in this context.

These positive displacement screw pumps are great for moving thick paste-like fluids at an even speed and pressure but are often problematic with abrasive and aggressive waste-streams.To get more news about Screw pump rotor, you can visit hw-screwpump.com official website.

Whatever your application, if you have an issue with a faulty progressive cavity pump try this checklist for possible solutions.

Here's our trouble-shooter for a variety of progressive cavity pump (screw-pump) issues:

Check the power supply matches the pump motor voltage and amps.
Check that the fuses haven't blown.
Has the pump been idle for some time? The rotor and stator may have ‘bonded', if it doesn't turn then check for dried debris and lubricate with an appropriate oil or glycerin.
Has the cable or its connections been damaged? If so, have the damaged section replaced.
Check that the motor windings haven't burnt out.
Have the pumped fluid's properties changed? Tight tolerances on progressive cavity pumps mean that if the media's viscosity or temperature do not match the pump's specification it can lead to thermal expansion. This could burn the rotor and stator where they rub or even jam it, stopping all movement and putting strain on the motor.
Examine the rotor to make sure it's not blocked or jammed. If it is, then withdraw it from the pump, clean down and if there is no damage evident, reassemble.
Try reducing the pump's rotation speed before switching it on, also check the delta start settings if it is an older 3-phase motor, or invertor settings on a newer 3-phase. Generally, the larger the motor, the longer the time delay between start up and full power is needed. If the pump starts okay on a low speed, wait until it has discharged steadily for a time before increasing speed step-by-step to normal operation.
IS THE PUMP GIVING TOO LITTLE OUTPUT?

Check the feed intake is supplied and that the pump's inlet is fully submerged. Stop the pump and isolate the power while you check for blockages at either end.
Check the motor is rotating in the correct direction. If not, the wiring needs correcting before it is started up again.
Has performance reduced over time? Check the wear parts and replace them if worn out. Progressive cavity pumps rely on tight tolerances and abrasive slurries can soon wear down the stator walling and rotor edges.
Examine the discharge pipework and replace it if leaking or cracked.
Another reason why the pump may be giving too little output is if the final discharge head is too high; where this is the case, you may need to use a larger pump or an alternative type.
Check that the rotation speed is correct. Reduced speed for the same power draw could indicate something jamming inside the pump, or the fluid's viscosity is too high for the pump configuration.

"Screw pump" is short for eccentric screw pump. After the inventor, it is also known as the Moineau pump , or from English as the PCP pump (progressive or progressing cavity pump). It is one of the rotating positive displacement pumps. The pumped medium is transported from the upper tank through the hose to the spray lance.To get more news about SEEPEX Pump Parts, you can visit hw-screwpump.com official website.

The eccentric screw pump has two main components: on the one hand the rotor, a rotating screw, and on the other hand the stator, a cylinder in which the rotor is located.

The stator has a similar internal geometry to the rotor ,both are helical. When the rotor rotates in the stator, defined empty spaces (conveying chambers) with circumferential sealing result, thus creating a negative pressure. This in turn ensures that the eccentric screw pump is self-priming. Due to the constant movement of the rotor (in contrast to changes in direction of reciprocating pistons and thus corresponding dead centres), material conveying is low in pulsation. At the injection lance, the medium is then divided with the aid of compressed air and can be applied evenly.

Valves for limiting the delivery spaces do not exist in this pump, which means less wear. The rotor moves eccentrically, which means that the axis of rotation of the rotor does not correspond to the axis of symmetry of the complete pump. This is also where the name of the eccentric wrom pump comes from. The eccentric screw pump should not be confused with the Archimedes screw, which is also called a screw pump and is used today especially in the conveyance of solids such as bulk materials. This is a huge helix that simply pushes the conveying elements (often solids) upwards in a trough. There is no stator in which negative pressure is generated, so that this type of material conveying does not belong to the pumps, but is a constant pressure hoist. It was originally used as a water lifting device in ancient times to pump water.
Due to the rotor-stator principle, the WAGNER screw pumps are very easy to operate and infinitely variable and are also suitable for beginners in the field of machine processing. We also make a point of ensuring that our machines are as trouble-free and easy to use as possible for your users - accordingly, WAGNER mortar spraying equipment can be dismantled and reassembledin just a few steps, even on theconstruction site itself. All the wetted parts are made from stainless steel.In addition, our PlastCoat and PlastMax units have a long service life.They are very robust and particularly low-wear and low-maintenance, and the uncomplicated operation avoids sources of error and thus potential for damage. Our WAGNER screw pump also works much more quietly than the standard piston pump!

The screw pump combines many advantageous features of other pump solutions: Like the centrifugal pump, for example, it has no pressure or suction valves, and like a piston pump, the eccentric screw pump also has excellent pumping speed. The flow rate is constant and speed-dependent.Like a gear or screw pump, it handles pumped material with high viscosity, grain size,fibres and inhomogeneous or abrasive materials.

Spraying particularly heavy materials such as plaster or filler is hard work. The biggest advantage of a screw pump is the possibility of achieving a high working speed and yet a high-quality surface result with little physical effort due to the machine processing . The quality of your work does not decrease, on the contrary, and in addition you can plaster, fill, coat or reinforce surfaces much faster. The more surface area involved, the more obvious the time and material savings.

Rotor Stator pumps are progressive cavity pumps - a type of positive displacement pump. They can be used for pumping various viscous and abrasive fluids. To get more news about SEEPEX Pump Parts, you can visit hw-screwpump.com official website.

The fixed stator and the rotating component, the rotor, are the yin and yang of progressive cavity pumps. The rotor is the spiral steel shaft that creates conveying chambers of the inner outline of the rubber tube. Stators are metal tubes with internally molded cavities made of synthetic or natural rubber.

When the rotor is triggered, the conveying chambers move in the direction of flow. This is how the constant flow of material is achieved. The rotor takes a form which resembles a corkscrew, which, combined with the off-center rotary motion, gave its alternative name: eccentric screw pump.
2. What are rotor stator pumps used for?
Various industries use progressive cavity pumps. Putzparts is specialised in rotor stators for the construction and refractory industry to pump screed, mortar, grout, gypcrete, plaster and fireproofing cement.

Rotor stators also cater to wood processing and cellulose production, the chemical industry, the petroleum industry, domestic and industrial sewage, and low flow, high head, and agricultural water pumping.

3. What are the relevant factors when choosing the rotor stator?
Size, diameter, grain of the material, and the flow rate you want to achieve

You will want to choose your rotor stator based on its size and diameter, depending on the grain of your material and your desired flow rate. Different rotor stator pumps to suit different materials and purposes and achieve different pumping results. Different flow rates and pressure stabilities are achieved by varying designs of screw pumps.

4. Maintenance-free or clampable rotor stators?
Maintenance-free stators are more user-friendly. They can be used directly after being installed in the machine. They have unslotted steel tubes as outer casings. This means they allow for constant delivery pressure and support a hassle-free process.

Clampable stators are clamped according to material and grain size. They come in two types: stators with built-in tensioning clamps and slotted stators that are provided with an external tensioning strip.

Both transport diverse materials smoothly, continuously and with minimum pulsation. Pumps which require clamping have an integrated clamping bar or a grooved stator for the clamp, with or without an additional separate clamp. When the delivery pressure drops, the stators must be retightened.

5. How to choose the right shore for your rotor stator?
The shore is very significant: the smaller the number of the shore, the softer is the rubber. We recommend a soft rubber if you pump material with sharp aggregates, as they wear out less quickly.
6. Does Putzparts supply high-quality rotor stator pumps?
Putzparts rotor stators are made in Germany. Our high alloyed steel rotors are never hollow. We use precisely drilled, high-quality steel for long-lasting rotors.

Our stators use high-endurance rubber, which makes them long-lasting, reliable, and supportive of a solid, consistent pumping experience.

7. Can I use the pumps for different machines?
We provide Rotor Stator Pumps for various machines by Putzmeister, PFT, M-Tec, Uelzener, Turbosol, Mai, Utiform, Inotec, Imer, Brinkmann and many more. Many machines use the same rotor stator types.

For plaster, the most popular pump is the D6-3, which has a solid output of 30 litres per min at 400 rpm. If you need more, you can go with the D8-2, which has more output at 66 litres per minute than any other D-pump.

Flexible, efficient, reliable: Multi screw pumps offer a precise and reliable way of pumping the most demanding media in various applications. But how does a multi screw pump work, and for which applications is it particularly suitable?To get more news about screw pump stator, you can visit hw-screwpump.com official website.

As a global specialist in complex fluid management, NETZSCH Pumps & Systems has answers to all your questions about positive displacement pumps. We will show you the function of a multi screw pump and how to benefit from it.
Four elements are indispensable for the function a multi screw pump: The screws, also known as rotors, the pump housing, the drive or gearbox and the mechanical seals. NETZSCH offers you screws in a wide variety of designs, depending on the application. From nitrated steel alloy to stainless steel, everything is available. The screws are manufactured with a highly efficient profile. This allows you to achieve a high flow rate with low fluid shear. In addition, several pitch variants are available, which are balanced and ensure a high suction capacity. Another advantage offered by NETZSCH multi screw pumps is the innovative FSIP? design. This allows you to quickly and easily disassemble and assemble the pump without separating it from the pipeline. Thus you save time and, as a result, money. Another critical component for the function of the multi screw pump is the drive and the gearbox. The gearbox ensures smooth torque transmission between the screws and, together with the drive, guarantees contactless operation of the pump elements. This results in slight vibration and low noise generation, therefore making it possible to pump almost noiselessly. The mechanical seals also play a decisive role in the smooth functioning of a multi screw pump. NETZSCH offers single- or double-acting mechanical seals in cartridge design. Both are interchangeable and fit into the same mechanical seal housing. In addition, a pressure flush or a quench connection is optionally available. This allows you to clean the pump easily without removing it from the system and to pump the medium at a constant temperature.

Multi screw pumps belong to the group of rotating positive displacement pumps. The form of the rotors resembles a spindle screw. It consists of at least two counter-rotating rotors and a housing enclosing them. The screws are designed with a regular, thread-like profile and interlock like gear wheels. The cavities created by these three construction elements form the feeding chambers. While the rotor rotates, the chambers move out in one direction, conveying the medium from the suction side to the discharge side. Due to their design, multi screw pumps offer a constant and precise delivery rate, are relatively noiseless and have high efficiency.

Multi screw pumps are used in a wide range of applications, especially in situations where precise and reliable fluid delivery is required. Applications range from food production and the chemical industry to oil and gas production. For example, multi screw pumps convey liquids such as dairy products, juice concentrates and syrups in the food and beverage industry. But they are also used in the pharmaceutical industry to convey medication, ointments and lotions. Due to the innovative design, you can clean the multi screw pumps particularly easily (CIP - "Cleaning-In-Place-Procedure") and even keep them sterile (SIP - "Sterilisation-in-Place-Procedure"). The concept allows you to clean without an auxiliary system and without time-consuming removal from the system. This also makes multi screw pumps ideal for use in the chemical industry, where they convey liquids with high viscosities and aggressive chemicals. In the oil and gas industry, multi screw pumps pump media such as crude oil, refinery waste and lubricants. All in all, multi screw pumps offer a precise and reliable way of pumping liquids. Especially in applications with a high viscosity or an aggressive chemical composition of the medium, multi screw pumps are ideally suited.

Eccentric screw pumps at the sewage treatment in Bayreuth, Germany operate almost continuously 24/7/365. When it was time to replace the motor on one of the pumps at the site, the operators seized the opportunity, after a successful technology upgrade to their sedimentation tank drives (see P-8000-BGM), to specify an optimized replacement unit from Bauer Gear Motor.To get more news about SEEPEX Pump Parts, you can visit hw-screwpump.com official website.

Bauer was ready to offer an innovative permanent magnet synchronous motor (PMSM) solution that provided improved efficiency and increased cost-effectiveness. Working with the pump manufacturer, Bauer discovered that the installed 15kW IE3 asynchronous motor (ASM) could be downsized to a 5.5 Kw IE3 drive with PMSM technology.

The downsized motor provided significant energy efficiency. However, the exceptionally efficient rotor design of Bauer PMSM drives utilizes specialized permanent magnets, which provide additional power savings and improved environmental credentials compared to traditional motors.

Heat losses from the rotor are eliminated and total losses are reduced by 25%, which results in consistent motor efficiency improvements of over 10% compared to competitor drives. These characteristics ensure high efficiency, even across varied duty requirements. A minimum 10% overall efficiency improvement extending over yearly operating cycles delivered considerable cost savings of up to € 9.000 per pump per year along with reduced CO2 emissions.

Eccentric screw pumps operate at different speeds and operating points depending on requirement, which suits the wide partial load operation and speed range offered by the PMSM. Furthermore, this range offers a higher overload capability, which is advantageous if another pump fails on-site and the same duty requirements are spread across fewer pumps.