The 16th World Pharmaceutical Machinery, Packaging Equipment and Materials China Exhibition (CPHI&PMEC China 2023) was held in Shanghai from June 19 to 21. Durrex rotary lobe pumps, homogeneous pumps and other industrial pumps and technical solutions provide professional solutions to help improve the production efficiency of equipment for pharmaceutical enterprises. Durrex pharmaceutical grade rotary lobe pumps, with surface roughness of 0.2-0.8 μm for overflow components. Manufactured strictly in accordance with the national technical specifications for pharmaceutical equipment, passed 3A health certificate, FDA certificate, and complies with GMP standards. The products are widely used for pumping various ointments, extracts, pharmaceutical lotion, pill pastes, medical syrup, vitamins, fermentation broth, pharmaceutical intermediates and other materials. At the same time, Durrex homogeneous emulsion pumps play the role of mixing, dispersion, depolymerization and emulsification of materials in the production process in pharmaceutical industry. The product has the characteristics of high hygiene level, stable transportation, easy maintenance, high efficiency and energy conser

The most widely used process pumps are rotor pumps, centrifugal pumps, screw pumps, etc. The following will explain the principles, advantages and disadvantages of rotor pumps, centrifugal pumps, and screw pumps. Definition 1 Rotary lobe pumps Rotary lobe pumps, also known as colloid pumps, cam pumps, three leaf pumps, or universal transport pumps, belong to the category of volumetric pumps. It achieves the purpose of conveying fluid through the periodic conversion of multiple fixed volume conveying units in the working chamber. 2 Centrifugal pumps The working principle of a centrifugal pump is centrifugal motion. Centrifuge is actually a manifestation of the inertia of an object, such as the water droplets on an umbrella. When the umbrella slowly rotates, the water droplets will follow the umbrella's rotation, because the frictional force between the umbrella and the water droplets acts as a centripetal force for the water droplets. But if the umbrella rotates faster, the frictional force is not enough to make the water droplets move in a circular motion, then the water droplets will detach from the outer edge

In order to fully promote digital transformation and intelligent development, promote the deep integration of cloud computing, big data, artificial intelligence, Internet of Things and other technologies with the petroleum and petrochemical industry, strengthen the construction of "smart oil and gas fields, smart refining and chemical plants, and smart pipe networks", accelerate the digital transformation process of petroleum and petrochemical enterprises, and achieve high-quality development of petroleum and petrochemical enterprises, "The 5th China Petroleum and Petrochemical Intelligent Technology Exchange and Petroleum and Petrochemical Enterprises Digital Transformation Summit Forum" was held in Qingdao, Shandong Province on July 18-19, 2023. As a governing unit of the Supply Chain Working Committee of China Petroleum and Chemical Industry Federation, Durrex continues to provide reliable products and perfect technical services for petrochemical users in the petrochemical industry, and has successfully implemented many petrochemical projects. At this conference, the company brought new products, new technologies, and technical solutions for the petrochemical industry, which received attention and praise from participants. The rotor pump and emulsion pump developed and produced by Durrex meet the needs of users in different working conditions in petrochemical industry. According to the characteristics of petroleum and chemical products, the products are strictly in accordance with the

Durrex pumps participated in the 2023 Adhesive Tape Innovation Technology and Application Development Summit on June 13-14, 2023. We discussed product applications and technical solutions with a large number of adhesive and adhesive tape manufacturers, and received attention and praise from the conference organizers and attendees. Durrex pumps conducts in-depth research on customer needs, and based on the material composition, viscosity, characteristics, process parameters, production equipment, and operating conditions of each adhesive and adhesive tape, makes special customizations to the pump's clearance, smoothness, and sealing. The transportation of materials is stable, safe, and efficient. The homogeneous emulsification pump quickly realizes the mixing, dispersion, refinement, and homogenization of multiple materials during the neutralization and mixing process of adhesive and adhesive tape emulsification. As a high-end lobe pumps and emulsion pump R&D and manufacturing enterprise, we closely monitor the development and market demand of the adhesive and adhesive tape industry, actively carry out technological innovation, and continuously develop new products and proc

NO.1 The basic elements of sealing Mechanical seals use the principle of friction between two planes to achieve the purpose of sealing. The rotating sealing surface is installed on the main shaft of the Rotary Lobe Pumps, emulsion pumps and other liquid pump, while the fixed sealing surface is installed inside the sealing gland. Due to the fact that one sealing surface is moving while the other sealing surface is stationary, this type of seal is called a dynamic seal. The latter two types of leakage paths generally adopt static sealing, as there is no relative movement between the two parts. This part of the seal is usually referred to as a tertiary seal, and its sealing material is a gasket or an O-ring suitable for the process liquid. Most mechanical seals are designed with softer materials to create a rotating surface that rotates and rubs against a harder stationary surface. For many years, the most common combination has been to use carbon materials as rotating surfaces to run on ceramic stationary surfaces. This type of material is still widely used, but the stationary surface is made of stainless steel or harder materials, such as tungsten carbide or silicon c

The THAIFEX-ANUGA ASIA 2023 was held at IMPACT Exhibition Center in Bangkok, Thailand, from May 23 to 27. As the largest international food and beverage exhibition in Southeast Asia, it has the most influential in Asia. More than 1,600 international exhibitors from more than 40 countries around the world, more than 60,000 professional trade visitors and buyers gathered together to have face-to-face exchanges and jointly explore new opportunities and trends in the food and beverage industry. We attend the THAIFEX-ANUGA ASIA 2023 (May23-27, 2023). In the exhibition, we showed our lobe pumps and homogeneous pumps, which mainly be used to transfer various fluids in the food Industry. We dedicate to provide the scientific and professional solutions in fluid field for more than 30 years. In the field of complex fluid transportation, our company's R&D technology, manufacturing technology, application technology is at the leading position in China. The food industry has high hygiene standards for machinery. We provide sanitary grade rotary lobe pump, it`s has sanitary rotor, rotor locking nut O - ring, pump body without sanitary dead angle, and support CIP.SIP on line cleaning. The pump`s surfac

The 25th China International Bakery Exhibition was held at the National Convention and Exhibition Center (Shanghai) on May 22-25, 2023. Durrex pumps attended the 25th China International Bakery Exhibition, showing the industry's leading food-grade lobe pumps and homogeneous pumps, the product hygiene level is high, obtained 3A certificate, FDA and CE certificate, support CIP and SIP, the product is easy to disassemble and assemble, the pulse is small when conveying, suitable for transferring materials with high viscosity, solid content and have high hygiene level requirements. We received many customers and audience attention and praise. Cake material transfer rotor pumps Baking industry has high requirements for pumps in the process of conveying cake paste and sandwich sauce. It not only requires smooth pumping, but has high hygiene requirements and can be cleaned. Durrex cake whipping rotary pumps not only have forward and reverse rotation, but also have strong rotor interchangeability, supports online CIP and SIP, and have obtained 3A and FDA certification.

Pumps are the second most commonly used industrial equipment after motors. Currently, millions of pumps worldwide are operating, conveying thousands of liquids. Choosing a suitable pump among the many types of pumps available is a very complex task. The selection of pumps is largely a process of matching the capabilities of a specific pump with system requirements and the characteristics of the liquid to be pumped. In this article, we will start with the properties of the pumped liquid, from the perspective of user needs, and then discuss the specific pump selection. Basic requirements: In any application, the first step is to understand the basic requirements of the user for the pump. For example, inlet conditions, required flow rate, pressure difference, temperature, and fluid characteristics, such as viscosity, abrasiveness, shear sensitivity, and corrosiveness, must all be determined in order to select a good pump. The pump must operate well under the correct suction conditions. In fact, the biggest problem encountered by pumps can be traced back to poor suction conditions. Due to the fact that th

Durrex pumps, as a green factory, have built an efficient, clean, low-carbon and circular green manufacturing system. Under the guidance of the carbon neutrality and emission peak dual carbon goals, Durrex pumps continue to optimize the low-carbon green production system, build technological innovation, resource conservation, and environmentally friendly production and operation models, and help users achieve green and low-carbon production through leading products and technologies.The rotor pumps, emulsion pumps and Emulsion Pumps, produced by Durrex pumps create maximum value for global users. As a leading industrial pump, Durrex has been dedicated to developing and producing industrial pump products such as Emulsification pump, Homogeneous Pumps, Lobe Pumps, Rotary Lobe Pumps, Rotor Pumps etc. Through first-class production and testing equipment, we create excellent quality and create maximum value for users. Adhering to the company's vision and mission, Durrex pumps have formulated a sustainable development strategy as a priority principle, fully integrated into the company's business development strategy, continuously developing efficient, energy-saving, safe, stable, green and environmentally friendly intelligent industrial pumps such as rotary lobe pumps and emulsion pumps, as well as professional technical solutions, to promote the upgrading of modern industrial manufacturing and achieve sustainable development of enterprises and society.

The CQW type small flow high lift magnetic pump is a new generation of magnetic pump manufactured by Durrex using international advanced technology. The torque is transmitted through a magnetic coupling, and the permanent magnetic field of the external magnetic rotor passes through the sealing isolation sleeve to induce the internal magnetic rotor. The drive shaft of the impeller and the motor shaft are rigidly connected, and the shaft power of the driving machine is transmitted to the impeller of the pump through the magnetic coupling, achieving efficient material transportation. The product design is reasonable, with excellent craftsmanship, simple structure, small volume, and light weight. It has significant advantages such as full sealing, no leakage, corrosion resistance, no pollution, high flow rate, high head, low vibration, and low noise. Durrex CQW small flow high lift magnetic pump replaces dynamic seal with static seal, keeping the flow components of the pump in a fully sealed state, solving the problems of "running, emitting, dripping, leaking, and seeping" that other pump mechanical sealing methods avoid; The impeller adopts advanced stainless steel and precision casting technology, suitable for medium transportation with low flow rate and high head, and operates sm

Durrex petrochemical rotary lobe pumps are designed in strict accordance with API676 standard and special requirements of petrochemical industry, and diversified configuration of these products fully meets the different needs of users in petrochemical industry. According to different requirements of different working conditions, the mechanical seal can be configured with corresponding sealing flushing system, and the seal and flushing system strictly implement the API682 standard to ensure the reliability of the seal and achieve better sealing function. Durrex rotor pumps, emulsification pumps, rubber lobe pumps, magnetic pumps and other products for petrochemical industry have stable, safe and reliable operation, with lower noise, less wearing parts, long service life, online maintenance, easy maintenance, effectively improve production efficiency, reduce the cost of equipment using and maintenance. Durrex pumps are widely used in the transportation of crude oil, refined oil, petroleum chemicals and sewage oil, as well as the unloading of tank trucks, oil depot sweeping and other fields. We are providing high-precision, high-performance rotor pumps, emulsification pumps, rubber lobe pumps, magnetic pumps and other products for Sinopec, CNPC, CNOOC, ZPC, STL WANHUA CHEMICAL GROUP and other brand enterprises, as well as professional techn

Lobe pump is widely used in paper-making industry, mainly used to transport pulp, paper-making chemicals, paper-making wastewater and other fluids. 1. Pulp transportation: In the paper making process, the transportation of pulp is a very critical step. Lobe pumps can effectively transport the pulp and ensure the quality and production efficiency. 2. Chemical transportation: In the papermaking process, various chemical agents need to be added to improve the performance of the paper. Lobe pumps can accurately transport these chemicals to ensure the stability of the production process. 3. Hot water transportation: In the papermaking process, a large amount of hot water is needed to heat and dilute the pulp. Lobe pumps can effectively transport hot water and ensure the continuity of the production process. 4. Sewage transportation: Paper-making process will produce a large amount of sewage. Lobe pumps can be used for sewage treatment and recycling to protect the environment. In general, the application of lobe pumps in paper industry can improve production efficiency, ensure product quality, reduce production costs, and protect the environment. Durrex pumps mastered the core key technologies of lobe pumps research and development, manufacturing and application, and have multi-serie

Pharmaceutical grade rotary pumps have high hygienic and clean technical requirements, and the surface roughness of the flow parts of Durrex pharmaceutical grade rotary pumps reach 0.2~0.8μm, which are manufactured in strict accordance with the technical specifications of national pharmaceutical equipment, and has passed 3A certification and FDA certification. Durrex products used in pharmacy industry are: extraction liquid transport pump, ointment transport pump, vitamin E raw materials transport pump, medical intermediate homogeneous emulsion pump and other rotor pumps, homogeneous pumps, magnetic pumps, etc. These products are widely used to convey ointment, extract, pharmaceutical emulsion, pill paste, medical syrup, vitamins, fermentation liquid, medical intermediates and other materials, as well as wide application of mixed emulsion pump in pharmacy industry, which improve production efficiency and products quality. Durrex pumps through technology integration help users to develop intelligent mixing homogenization equipment and achieve more intelligent production control. Durrex pumps provides high precision and good performance rotor pumps, homogeneous pumps, magnetic pumps and professional technical solutions for users to improve production efficiency, reduce production cost, save energy and reduce ene

Durrex has continued to provide reliable products and leading technical solutions for the petroleum and petrochemical industry for more than 20 years, which are widely used in the fields of crude oil transportation, refined oil transportation, petrochemical chemical transportation, dirty oil and sewage transportation, tank truck unloading, oil depot sweeping and other fields. The products operate stably, safely and reliably, can save energy and reduce consumption, have low noise, long service life, less easily-damaged spare parts, and can be maintained online. Positive displacement pumps with cooling system Based on the complex working conditions and process requirements of the coal chemical industry, the chemical grade rotor pumps are developed and produced to be of high precision, wear resistance, dry operation, reversible input and output, easy maintenance and long service life. The corresponding sealing and flushing system is configured, such as 52, 53A, 53B, 54, 74, etc. The mechanical sealing and flushing system strictly implements the API682 standard to ensure the reliability of the seal. Different configurations can meet different needs of users, suitable for transporting gas, liquid, solid mixed materials, coal tar, coal water sl

Durrex homogeneous emulsification pumps are multi-functional mixed emulsification equipment using international advanced technology, with professional manufacturing technology and processing precision leading international similar products. Durrex homogeneous emulsification pumps are highly-efficient product that can be used for mixing, dispersion, dissolution, depolymerization, refinement, homogenization, and emulsification. Its main working components are rotors and stators, and the stators work together under the rapid operation of rotors and pumped liquid, the strong shearing, squeezing, impacting, breaking and friction make the materials containing solid, liquid and gas dispersed and emulsified in an instant. After reciprocating cycles, the original products become a stable high-quality product. l A high-efficiency product that has function of mixing, dispersion, dissolution, depolymerization, refining, homogenization, and emulsification. l With reliable mixing, dispersion, homogenization, emulsification performance, simple assembly and disassembly, long service life. l Modular design of toothed discs, with multiple different types of discs interchangeable and capable of designing modules for different operating conditions l According to the different characteristics of materials, we will use

In order to fully display the achievements of scientific and technological innovation in dairy industry, exchange prospective technology and trade information in dairy industry, promote the improvement of the level of scientific and technological innovation in the industry, and promote the prosperity of dairy industry, the 29th Annual meeting and 2023 China (International) Dairy Technology Expo hosted by the China Dairy Industry Association was held in Jiangxi Province. Durrex pumps attended this dairy exhibition, showing the industry's leading food-grade rotor pump, homogeneous emulsion pump with high hygiene level, obtained 3A health certification, FDA and CE certification, support CIP, SIP. Durrex pump`s assembly and disassembly is simple, rotor manufacturing precision is high, interchangeability is strong, can support positive and reverse rotation, the pulse is small when pumping, It is suitable for pumping materials with high viscosity, solid content and hygiene level. Based on professional technology, Durrex food grade rotary lobe pump, homogenizer and other products have a high influence in food

Durrex pumps in the fine chemical complex material conveying process, according to the user to provide a variety of high viscosity materials characteristics and process flow, in the application technology for the majority of users to provide fluid conveying solutions, as well as the need for mixed homogeneous process solutions. Durrex rotary pumps and homogeneous emulsion pumps are widely used in dyes, various chemical raw materials, chemical auxiliaries, adhesives, emulsion explosives, 107 glue, silicone oil, glycerin and so on. Durrex pumps are customized based on different processes and working conditions from different users, to adapt to changes of viscosity, temperature and other needs under different working conditions, including special customization of pump clearance, degree finish, sealing, etc., so as to help users greatly improve product quality, improve production efficiency. Selection and configuration of safety valves can protect pumps, pipelines and related equipment, and effectively ensure safe and stable production. Durrex lobe pumps, homogeneous pumps, rubber pumps, magnetic pumps and other products for refine chemical industry have stable, safe and reliable operation, low noise, less wearing parts, long service life, online maintenance and eas

Adhering to the enterprise mission of "creating maximum value for users", Durrex pumps have professional technical service teams, they are keeping researching market demands deeply, quickly respond to user requirements, and conduct comprehensive analysis and fluid power calculation according to each customer's material composition, viscosity, characteristics, process parameters, production equipment and working conditions and other data, so as to provide users with scientific fluid transportation solutions. At the same time, Durrex pumps provide technical services such as application technical consultation, installation guidance and maintenance training to ensure that users get timely, professional and efficient services throughout the product life cycle, improve production efficiency, reduce production costs, and achieve energy saving and consumption reducing. As a leading industrial pump, Durrex has been dedicated to developing and producing industrial pump products such as Emulsification pump, Homogeneous Pumps, Lobe Pumps, Rotary Lobe Pumps, Rotor Pumps etc. Through first-class production and testing equipment, we create excellent quality and create maximum value for users.

This year, Durrex pump made a major appearance at the Chengdu Sugar and Wine Fair from April 12 to 14, 2023, showcasing the industry's leading food-grade rotor pump and homogeneous emulsion pump. The products have high hygiene level, passed the 3A certification, FDA testing and CE certification, and support CIP and SIP; Easy to disassemble and assemble, high precision rotor manufacturing, strong interchangeability, can support positive and negative rotation, small pulse when conveying materials; It is suitable for conveying materials with high viscosity, solid content and hygiene level, and received wide attention and praise from customers and visitors on site. Based on professional technology and product quality, food grade conveying pump and emulsification pump have great influence in food industry globally, and are widely used in beverage, sugar, chocolate, dairy products, various syrups, concentrated juice, jelly, yogurt, honey, tomato paste, cream, soybean protein etc. to ensure that the transportation of sugar and wine, beverages and food medium is safe, efficient and reliable. Starch sugar lobe pumps In the production of starc

Ningbo Durrex Pumps Co., Ltd. is the largest and most professional rotary lobe pumps manufacturer in China. As an international high-end fluid transfer equipment expert, we dedicate to provide the scientific and professional fluid transfer solutions for customer more than 30 years. And the core technology of products has been in the world's leader. DURREX has strong R&D technology and advanced manufacture equipment, with advanced technology in fluid transfer and compound& Emulsification, provide advanced products for global market. DURREX main series products: Twin-rotor lobe pump, homogeneous & emulsification pump, compound& emulsification pump; Homogeneous pump, mixed transportation& AMP; Crush pump, oil filed& AMP; Environmental protection special pump and so on. DURREX pumps are widely used in areas of petrochemical, refinery chemistry, consumer chemicals, chemical fiber, foods processing, pharmaceuticals, pesticides, fertilizers, paper making, dope, resins, environmental protection, metallurgy and other industries.

Rotor pump is a type of rotary positive displacement pump Durrex has been researching and developing and producing for over 20 years. The company has mastered key technologies such as research and development, manufacturing, and application of rotary pumps. It has various series and specifications of pump products such as rotary pumps with cooling system, sanitary rotary pumps, chemical lobe pumps, and other special types rotary lobe pumps, and is in a leading position in the complex fluid transportation field with significant impact. l Maintain a certain gap between the rotor and rotor, the rotor and pump body, no friction coefficient, with long service life. l One pump has different types of rotors and can be exchanged to meet the needs of different working conditions. l It can transport materials with 0.2-2 million cp, and can transport all kinds of gas, liquid and solid mixed materials, as well as materials certain solids. l High transmission efficiency, and save energy and reduce consumption. l The product is simple to assemble and disassemble, easy to maintain and clean, and has less wearing parts. l Products through the 3A,

In the past 20 years, Durrex has successively launched multiple series and specifications of products, including cam rotor pumps, homogeneous emulsification pumps, refine grinding pumps, rubber rotary pumps, leak free magnetic pumps, intelligent rotary pumps, etc. It has qualities including integrated, intelligent, efficient, high stability, safer, more energy-saving, easy-maintaining, and more durable, making it an ideal pump for creating energy-saving workshops and green factories. Durrex rotary pumps adopt a number of new technologies, new materials and new processes, which can transport materials with 0.2cp-2 million cp viscosity, improve the continuous transmission performance of various viscous mediums, and the transport performance of gas, liquid and solid mixed materials, with smooth operation, high efficiency and energy saving. Durrex homogeneous pumps are a multi-purpose mixing emulsifying equipment manufactured with international advanced technology. It is an efficient product integrating mixing, dispersion, dissolution, depolymerization, refining, homogenization and emulsification. It further optimizes the traditional production process, improves production efficiency, improves product quality and reduces production costs. Durrex grinding pumps are developed to be specially used to crush, grind and refine the particles such as crystals, clumps, sticky blocks and filter cakes in the fluid pumped, greatly improved the grinding efficiency and pro

Rotary Rotor Pumps, also known as colloid pumps, cam pumps, three blade pumps, universal transport pumps, etc., belong to the category of volumetric pumps. It achieves the purpose of conveying fluid through the periodic conversion of multiple fixed volume conveying units in the working chamber. The mechanical energy of the electric motor is directly converted into the pressure energy of the conveying fluid through the pump. The flow rate of the pump only depends on the change value of the working chamber volume and its frequency of change per unit time, and (theoretically) is not related to the discharge pressure; The Lobe pumps actually operates through a pair of synchronously rotating rotors. The rotor is driven by a pair of synchronous gears inside the box, and the rotor rotates synchronously in the opposite direction driven by the main and auxiliary shafts. Change the volume of the pump, resulting in a higher vacuum and discharge pressure. Rotary lobe pumps are especially suitable for conveying sanitary grade media and corrosive, high viscosity media. 1. Performance 1.1 The spare parts in contact with the conveying materials in the rotor pump are made of stainless steel materials that meet hygiene standards, and their sealing components are mad

With the rise of new energy power battery and energy storage battery industry, DURREX pumps follow the development of the times and we successfully R&D a new structure of rotary lobe pump which is used in lithium battery industry. For many years, we always focus on application technology of rotary lobe pump in the different industry, to comply with market demand. Lithium battery slurry preparation is the front-end process of lithium cell production and one of the most important steps in the entire production processing, which affects quality of lithium cell and determine the battery cost. Now we have successfully used the rotary lobe pumps in the lithium battery production processing and have been gotten unanimous praise from users. We are the first manufacturer, which provides the rotary lobe pump in this industry. So we were invited to attend the 12th Shanghai International New Energy Lithium Battery Technology Exhibition (Mar 7- Mar 9, 2023). In the exhibition, we showed multiple series and specifications of high efficiency and energy saving lithium battery equipment: lithium slurry delivery rotary lobe pump, homogenization pump and high-efficiency homogenizing pump of iron phosphate, etc. In this industry, we designed new structure of cooling system for rotary lobe pump, to improve the stability and eff