A large variety of corrosive and viscous fluids are used in various industries to carry out regular processes. Many of these fluids require special pumping equipment and systems such as progressive cavity pumps, which helps in handling viscous slurries. Today, it is easy to find progressive cavity pumps from different brands,These pumps are equipped with various parts that contribute to their proper functioning in harsh environments. These parts may wear out due to continuous exposure to elements such as moisture, acidic mixture, heat, and thus require replacements.
The stator is mostly made of rubber. Since it needs to form a closed meshing cavity with the rotor, it has an interference fit with the rotor. When the rotor (spindle) rotates and causes constant friction, it will naturally wear out.
The screw pump rotor (also known as the main shaft) is mostly made of stainless steel and can be selectively chrome-plated; due to its meshing relationship with the characteristic geometric shape of the stator, in addition to natural wear, it is also related to whether the conveying medium contains solid particles and corrosiveness.
The coupling is a metal pump part that connects the rotor and the drive shaft in the screw pump. The connecting rod connects the rotor and the transmission shaft. When the motor is running, the transmission shaft drives the connecting rod, and the connecting rod drives the rotor to transmit the power. Except for the transmission shaft, these mechanical parts are all located in the suction chamber of the pump.
The drive shaft is the metal pump part located between the connecting rod (consisting of a universal joint group) and the drive end (such as a reducer or various drive motors). Its wear is mostly caused by natural wear or changes in medium working conditions.
The universal joint group is also called the universal joint assembly. The universal joint assembly is located at both ends of the connecting rod. It successfully connects the rotor and the drive shaft to the connecting rod more stably and firmly. Since the universal joint assembly is composed of a variety of small parts, we need to check its sealing and lubrication regularly.
As a key equipment for handling special fluids such as viscous slurries, screw pumps play an important role in all walks of life. Regular maintenance of key components of screw pumps, such as stators, rotors, coupling rods, drive shafts, universal joint components, etc., is a key step to ensure its efficient operation and extend its life. Therefore, regular inspection, maintenance and replacement of key components of screw pumps will help reduce the occurrence of failures, improve equipment reliability, and ensure the smooth progress of the production process.
What is a stator? The stator of a screw pump is one of the core components of a screw pump. It consists of a stator core and a stator sleeve. The stator core is made of cast iron or steel plate, and has a certain rigidity and strength to support the work of the stator…
Features of Seepex BN70-18L stator The Seepex BN70-18L stator is made of high-quality materials with good corrosion resistance and wear resistance. This means that in harsh working environments, the stator can still maintain stable performance and ensure the normal operation of the pump. Its material selection takes into account the needs of various application scenarios,…
Material selection Corrosion-resistant materials The material selection of the BN130-12L rotor is very particular, and usually uses a corrosion-resistant alloy material. This material can not only resist the erosion of chemical substances, but also operate stably under high temperature and high pressure environments, extending the service life of the equipment. Balance of strength and toughness…
Design features of BN130-12L stator The material of BN130-12L stator is carefully selected to ensure its corrosion resistance and wear resistance. This material can withstand various harsh working environments and ensure the long-term stable operation of the pump. The manufacturing process of the stator adopts advanced precision machining technology, so that the size and shape…
Seepex Overview Founded in the last century, Seepex is a company that focuses on screw pumps and related technologies. Its products are widely used in many fields such as chemical, food and water treatment. Seepex focuses on technological innovation and research and development, and is committed to providing customers with more efficient and reliable pump…
Design features: Breakthrough innovation The seepex BN26-12L rotor adopts a new design concept. On the basis of keeping the basic working principle unchanged, it has achieved significant performance improvement through the optimization and improvement of the rotor structure and materials. Its unique design features are mainly reflected in the following aspects: Optimization of rotor geometry:…
Design features: precise and efficient stator structure The seepex BN100-12L stator adopts a carefully designed structure, which reflects excellent craftsmanship in terms of flow channel shape, material selection and manufacturing process. The inner wall of the stator adopts a special spiral flow channel design, which can provide a smooth flow channel for the fluid and…
Design Features The seepex BN100-12L rotor features advanced engineering design for outstanding performance and durability. Its unique spiral shape and precision manufacturing process ensure reliable conveying capacity under various working conditions. It performs particularly well when conveying viscous, granular or solid-containing media. Made of high-strength alloy material, this rotor has outstanding load-bearing capacity and maintains…
Well-designed structure The BN70-12L rotor adopts the unique design concept of seepex, which not only ensures high performance, but also pays attention to safety and durability. The rotor body is made of high-quality materials and undergoes strict process control to ensure the overall stability of the rotor. At the same time, the special spiral groove…
Design features The seepex BN70-12L stator adopts an innovative design concept and is unique in terms of material selection, manufacturing process and structural optimization: Optimized material selection: High-quality insulating materials with high wear resistance and chemical corrosion resistance are used to ensure that the stator can perform stably and reliably under harsh working conditions. Advanced…
