NOTOS® 3NS Three Screw Pump - NETZSCH Pumps & Systems Pumps & Systems Career Sustainability English (USA) Chinese Dutch English English (Australia) English (India) English (South East Asia) English (USA) French German Indonesian Italian Korean Polish Portuguese (Brazil) Russian Spanish Spanish (Argentina) Spanish (Colombia) Spanish (Mexico) Spanish (Peru) Thai Vietnamese NETZSCH Group Proven Excellence in mechanical engineering for over 150 years Analyzing & Testing NETZSCH devices for thermal analysis, rheology as well as fire testing devices Pumps & Systems Innovative customised solutions in handling complex media Grinding & Dispersing Extensive range of machines for grinding and dispersing Career Sustainability Ask the AI Products Products NEMO® Progressing Cavity Pumps TORNADO® Rotary Lobe Pumps NOTOS® Multi Screw Pumps PERIPRO® Peristaltic Pumps Grinding Systems Dosing & Emptying Accessories & Optional Equipment Blog 02.09.2026 Shaping the Future: 14 Apprentices Begin Their Training at NETZSCH Event 08.10.2026 – 10.10.2026 Fair Dresden, Germany, Hall 2, Booth B36 FLORIAN Applications Applications Environment & Energy Chemical, Pulp & Paper Food & Pharmaceuticals Mining Oil & Gas Mid- / Downstream Oil & Gas Upstream Battery Blog 02.09.2026 Shaping the Future: 14 Apprentices Begin Their Training at NETZSCH Event 08.10.2026 – 10.10.2026 Fair Dresden, Germany, Hall 2, Booth B36 FLORIAN Service Service Spare Parts Service Technical Service Service Contracts Commissioning Maintenance & Servicing Modernisation Technical Training Technical Information Product Dispatch Procurement & Suppliers Blog 02.09.2026 Shaping the Future: 14 Apprentices Begin Their Training at NETZSCH Event 08.10.2026 – 10.10.2026 Fair Dresden, Germany, Hall 2, Booth B36 FLORIAN News Events Contact Distributor Distributor Distributor Login Ask the AI Open/close navigation Pumps & Systems Service Products Products NEMO® Progressing Cavity Pumps TORNADO® Rotary Lobe Pumps NOTOS® Multi Screw Pumps PERIPRO® Peristaltic Pumps Grinding Systems Dosing & Emptying Accessories & Optional Equipment Applications Applications Environment & Energy Chemical, Pulp & Paper Food & Pharmaceuticals Mining Oil & Gas Mid- / Downstream Oil & Gas Upstream Battery News Events Contact Distributor Distributor Distributor Login Service Spare Parts Service Technical Service Service Contracts Commissioning Maintenance & Servicing Modernisation Technical Training Technical Information Product Dispatch Procurement & Suppliers NOTOS® MULTI SCREW PUMPS NOTOS® 3NS Three Screw Pump Lightweight and universally applicable due to small footprint Advantages Applications Performance Data Technique Spare Parts FAQ Literature News Suitable for use in a wide range of industrial sectors and applications , the self-priming NOTOS ® 3NS three screw pumps are true lightweights and have a small footprint. Due to the optimization by means of the High Efficiency Unique Design (HEUD) concept, three screw pumps convince with a high efficiency. In addition, continuous delivery with low pulsation and a flow of the product with minimal turbulence is ensured. This results in gentle product handling. It is assured by means of state-of-the-art technology, precise tolerances and an optimized screw profile. In addition to a drive screw that transmits torque via a thin hydrodynamic film, 3NS three screw pumps have two rotating, intermeshing driven screws. This makes them particularly suitable for non-abrasive and non-corrosive products as well as for liquids with low to medium viscosity, such as lubricants. Through an optional upgrade, NOTOS ® multi screw pumps meet the American Petroleum Institute (API) standards relevant to the oil & gas and petrochemical industries. Furthermore, thanks to the wide range of materials, they are versatile and can be used in a wide variety of applications. In addition to grey cast iron and chrome-nickel steel, they are also available in duplex, superduplex or hastelloy steel. This ensures low maintenance and thus low life cycle costs. Multi screw pump for a wide range of media This makes them particularly suitable for non-abrasive and non-corrosive media as well as for liquids with low to medium viscosity, such as lubricants. Through an optional upgrade, NOTOS ® multi screw pumps meet the American Petroleum Institute (API) standards relevant to the oil & gas and petrochemical industries. Furthermore, thanks to the wide range of materials, they are versatile and can be used in a wide variety of applications. In addition to grey cast iron and chrome-nickel steel, they are also available in duplex, superduplex or hastelloy steel. This ensures low maintenance and thus low life cycle costs. Please accept Marketing Cookies to see that Video. Individual Consulting Get a personalized offer! contact now Advantages High Efficiency Multi screw pumps ensure continuous and gentle conveying of the product Quiet operation High precision in production ensures the pump runs with low noise and vibration Small footprint Thanks to its innovative design, the multi screw pump requires little space Technique 1 2 3 4 Further Advantages Easy maintenance Low life cycle costs Wide range of applications Wide range of materials Optionally according to API 676 (American Petroleum Institute) requirements Type / Performance Name Pressure max. (bar) Capacity max. (m³/h) Operating rotational speed (rpm) 3NS-/25M2 25 4 3,600 3NS-/25M3 25 7 3,600 3NS-/25M4 25 13 3,600 3NS-/25-4 25 15 3,600 3NS-/25-12 25 140 3,600 3NS-/25-13 25 200 3,600 3NS-/25-14 25 270 3,600 3NS-/25-15 25 400 3,600 3NS-/80-4 80 15 3,600 3NS-/80-5 80 20 3,600 3NS-/80-6 80 30 3,600 3NS-/80-7 80 40 3,600 3NS-/80-8 80 50 3,600 3NS-/80-9 80 60 3,600 3NS-/80-10 80 80 3,600 3NS-/80-11 80 100 3,600 3NS-/80-12 80 140 3,600 3NS-/80-13 80 200 3,600 3NS-/120-7 120 40 3,600 3NS-/120-8 120 50 3,600 3NS-/120-9 120 60 3,600 3NS-/25-5  * 25 20 3,600 3NS-/25-6  * 25 30 3,600 3NS-/25-7  * 25 40 3,600 3NS-/25-8  * 25 50 3,600 3NS-/25-9  * 25 60 3,600 3NS-/25-10  * 25 80 3,600 3NS-/25-11  * 25 100 3,600 *  This variant is no longer available. Further sizes and technical data on request. Worldwide service and support for your pump and system  Our service and support do not end with the purchase. From consultation, spare parts and maintenance to the repair and modernization of your pump - we support you right from the start.  Thanks to our worldwide service network, we are ready for you around the clock in case of an emergency. Literature NOTOS® Multi Screw Pumps brochure Product Portfolio Brochure Customer Service/Aftermarket Brochure API 676 3rd Edition Brochure NOTOS® Sanitary Twin Screw Pump Brochure Applications NOTOS ® 3NS three screw pumps Oil & Gas Mid- / Downstream Environment & Energy Chemical, Pulp & Paper Your contacts and companies at NETZSCH Any specific questions? Contact us for help or fill in the contact form. form FAQ multi screw pumps For which applications are multi screw pumps suitable? Multi screw pumps are particularly suitable for the continuous conveyance of low-viscosity to high-viscosity media in applications with high requirements for a uniform, low-pulsation conveyance process. They are used in a wide range of industrial applications, including the oil and gas industry in the mid- / downstream sectors , shipping and shipbuilding , and power generation . In addition, multi screw pumps are used in the chemical and petrochemical industries , in the food , beverage , cosmetics and pharmaceutical industries , and in tank farms and terminal operations . They also make a reliable contribution to safe and efficient plant operation in lubrication and control oil systems, for example, in hydroelectric power stations. What are the advantages of NOTOS® multi screw pumps? NOTOS® multi screw pumps offer numerous advantages for demanding industrial applications. They are characterised by smooth, almost pulsation-free operation and run quietly and with minimal vibration. High efficiency combined with low NPSHr ensures energy-efficient and safe operation, even under difficult suction conditions. In addition, NOTOS® multi screw pumps enable excellent handling of highly viscous media and provide gentle, shear-free pumping. The robust design contributes to a long service life and low maintenance requirements. Depending on the version, the pumps are also suitable for hygienic applications and are available in hygienic designs, for example, as 2NSH, CIP and SIP compatible. Which media can be conveyed with multi screw pumps? Multi screw pumps are suitable for pumping low to high viscosity media as well as lubricating and non-lubricating liquids. Depending on the design and type, both clean and shear-sensitivemedia, as well as corrosive or abrasive media, can be reliably pumped, as can liquids with low solid content. Even media containing gas can be pumped safely, depending on the application-specific design. Typical examples include crude oil, heavy oil, heating oil, lubricants, fuels, bitumen and other liquid or viscous media. What flow and pressure ranges do multi screw pumps cover? Depending on the type and application-specific design, multi screw pumps cover a very wide range of performance and applications. The flow ranges from a few m³/h to around 3,000 m³/h, while operating pressures in low-pressure applications can reach around 160 bar. In addition, multi screw pumps are suitable for a very wide viscosity range, extending up to several hundred thousand cSt. They also offer a high degree of flexibility in temperature: Depending on the choice of materials and seals, media temperatures rangingfrom around −20 °C to over 300 °C are possible. Are multi screw pumps suitable for continuous pumping processes? Yes, multi screw pumps are specially designed for continuous operation and continuous pumping processes. They deliver consistent pumping performance under fluctuating operating conditions and are therefore ideal for supply and transfer applications . Are multi screw pumps used in the oil and gas industry? Yes, NOTOS® multi screw pumps are used in numerous applications in the oil and gas industry, both in the midstream and downstream sectors. These include transfer processes, injection applications, supply systems, and auxiliary and ancillary units. Are multi screw pumps self-priming? Yes, multi screw pumps have good self-priming properties and are suitable for applications with changing fill levels or difficult suction conditions. Can multi screw pumps run dry? Whether multi screw pumps can run dry depends on the type of pump and its design. NOTOS® 2NSH and NOTOS® 4NS pumps can run dry for short periods, depending on their design and if they’re only used for a limited time. On the other hand, NOTOS® 3NS and NOTOS® 2NS pumps are not suitable for dry running and must be lubricated by the pumped medium during operation. An application-specific design is crucial to prevent damage and ensure safe operation. What drive options are available for multi screw pumps? Various drive options are available for multi screw pumps, enabling flexible adaptation to different operating conditions and system designs. Depending on the application, the pumps can be operated with a directly coupled electric motor with a fixed speed or with an electric motor in combination with a frequency converter control. In addition, versions with a hydraulic motor or air motor are also available. For special requirements, direct drives via gearboxes and diesel motor drives are also available. The selection of the appropriate drive concept is always application-specific, taking into account the process requirements and operational conditions. What materials are available for the construction of multi screw pumps? Various materials are available for the construction of multi screw pumps, enabling optimal adaptation to the medium, operating conditions and environmental requirements. Standard material options include cast iron and ductile iron, cast steel and all common stainless steel grades. Duplex and super duplex stainless steels are also used for particularly demanding applications, such as corrosive media or increased mechanical loads. The final material selection is always application-specific to ensure high operational reliability and long service life. Are multi screw pumps API-compliant? Yes, NOTOS® multi screw pumps from NETZSCH Pumps & Systems can be designed to be API-compliant. They are designed and manufactured in accordance with the relevant API standards for applications in the oil and gas industry. These include API 676 for rotary positive displacement pumps, API 682 for mechanical seals and sealing systems, and API 526 for external safety and pressure relief valves. Depending on the application and project-specific requirements, minor deviations are possible and are transparently agreed upon in advance. How maintenance-intensive are multi screw pumps? Multi screw pumps are robustly constructed and low-maintenance. Regular inspections and the replacement of wear parts as needed contribute to a long service life and high plant availability. What spare parts are available for multi screw pumps? All relevant original spare parts are available for multi screw pumps from NETZSCH Pumps & Systems. These include spindles, bearings, shaft seals, gaskets, housing parts and other wear-related components. The spare parts are precisely matched to the pump design and ensure reliable, safe operation. How do I find the right spare part for my multi screw pump? The correct spare part can be identified by the machine number, serial number, or item number. Spare parts lists, technical drawings and the operating and maintenance instructions also provide support. Alternatively, the NETZSCH Pumps & Systems service team can provide expert advice on selecting the correct original spare part. Can multi screw pumps be customised? Yes, multi screw pumps can be customised to a high degree for the respective application . NETZSCH Pumps & Systems offers numerous configuration options to optimally match the pump to the medium, process conditions and installation situation. These include selecting suitable materials and coatings, as well as application-specific screw profiles. In addition, various connection types, for example, DIN or ANSI-compliant, as well as hygienic couplings, are available. Different seal configurations, such as single or double mechanical seals and API flat seal systems, can also be implemented. Additional options such as heating jackets, linings, monitoring sensors and pressure relief valves are also available. In terms of installation, multi screw pumps can be designed flexibly, for example, for horizontal installation with a foot, vertical mounting on a socket or as a semi-submersible version. These versatile customisation options ensure each multi screw pump is designed precisely to meet the specific requirements of the application. How do I find the right multi screw pump? The selection of the right multi screw pump is based on an application-specific design. Decisive criteria include the required volume flow and operating pressure, the viscosity and temperature of the pumped medium, and its lubricating properties. The possible solids content, the planned installation situation, for example, horizontal, vertical, or semi-submerged, as well as standards and norms to be complied with, such as API, hygienic designs, or ATEX, also play an essential role. The experts at NETZSCH Pumps & Systems will assist you in selecting, designing and integrating the right multi screw pump. Based on your process data, a technically and economically optimal solution will be developed. What accessories are available for multi screw pumps? An extensive range of accessories is available for multi screw pumps to ensure safe and reliable operation. These include coupling protection devices and baseplates, as well as couplings with or without distance pieces. Internal or external pressure relief valves are also available. Temperature and vibration sensors for monitoring pump operation, as well as API plan sealing systems for double mechanical seals, are also available. Heating and cooling jackets can also be used as replacement or supplementary components. All spare parts are precisely matched to the respective multi screw pump and contribute to high operational reliability and a long service life. 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