WITTE Pumps & Technology Company Brochure

CHEMEXTRUPOLYBOOSTERPUROGear pumpsCompany profileWITTE PUMPS & TECHNOLOGYCompany PortraitWITTE Pumps and Technology GmbH was founded in 1984. Our headquarters is located in Uetersen, Germany near Hamburg. The aim of the company is to maximize customer´s process reliability by providing tailor madegear pump solutions. Customers for high-quality WITTE precision gear pumps come from the plastics, chemi-cal, cosmetic and food industries. Today, WITTE Pumps and Technology not only produces special solutions for industry but also offers a standard range of pumps. The latest technical innovations are incorporatedinto our standard model range, thus ensuring a very high level of technology. In addition to providingservices and spare parts for our own pumps, WITTE also provides comprehensive service packages for gear pumps produced by other manufacturers. WITTE Pumps and Technology is renowned for its innovativedrive, which makes it one of the world-leaders in this market.The WITTE PhilosophyThrough our worldwide presence, WITTE strives to maintain an extraordinarily high standard of customer service. Flexibility in solving technical problems and in handling projects are of the utmost significance. The extremely high level of technology and quality of our pumps ensures the trouble-free operation of processing plants. WITTE also boosts the motivation of its employees and cultivates their working environment. Respon-sible employees are an important part of the company. The health and safety of its employees is very close to WITTE‘s heart.WITTE‘s Quality PolicyOur quality policy is supported by ISO 9001. The quality policy at WITTE consists of the following goals:- Increasing the satisfaction of our customers.- Meeting or exceeding the customer´s specifications and expectations for quality, pricing and delivery- WITTE does our utmost to further the continual improvement of products and process developement.POLYMER DISCHARGE PUMPS – POLYBOOSTER PUMPS – BOOSTERCHEMICAL PUMPS – CHEMEXTRUSION PUMPS – EXTRUSPECIAL PUMPSFOODINDUSTRY PUMPS – PUROMINIPUMPS – CHEM MINISPARE PARTSMETERING SYSTEMSWITTE PUMPS & TECHNOLOGYSupply precision gear pumps that conform to the most stringent industrial requirements.WITTE‘s comprehensive experience in dimensioning gear pumps to match the most diverse challenges of the Chemical, Plastics and Foodstuffs industries ensures optimized pumps and fulfill the highest of quality requirements. State of the art production pro-cesses and stringent quality assurance using 3D coordinate-measuring-instruments form the backbone of the WITTE range of gear pumps.CHEMBOOSTEROperating Parameters*Viscosity: Up to max. 40.000 PasTemperature: Up to max. 350 °C (662 °F)Suction Pressure: Vacuum up to max. 120 bar (1740 psig)Differential Pressure: Up to max. 250 bar (3.626 psig)Operating Parameters*Viscosity: 0,0005 to 1.000 PasTemperature: Up to 300 °C (580 °F), higher temperatures upon requestSuction Pressure: Vacuum to max. 15 bar (215 psig), higher with magnetic driveDifferential Pressure: Up to 120 bar (1.740 psig) Gear pumps, for the transportation and metering of medium viscosity products, like pre-polymers, monomers and other chemicals. Decades of experience in construction and an optimum selection of materials, make these types of pump sui-table for even the most demanding tasks and are convincingin their reliability in both vacuum and high pressure applica-tions. For transporting poisonous, highly flammable media or media which crystallize under atmosphere.WITTE also offers this type of pump with a magnetic drive, where the medium is hermetically sealed in the pump. System pressures of up to 500 bar are possible with the CHEM MAG-NET. This series is also suitable for the foodstuffs industry, e.g. for transporting butter, margarine, vegetable oils and fudges.Gear pumps for the polymerisation process, to boost the pressure of medium to high viscosity media. This hydraulically heated pump, for use with pre-polymers and polymers, excelsthrough its gentle handling. It transports pre-polymers and polymers, e.g. PS, PET, PVC, PC, PMMA any many more, very gently. The heating can be provided by heat transfer oil or steam.Technical FeaturesHousing: Heat resistant carbon steel, e.g. 1.6582 (4340), stainless steel e.g. 1.4313 (E415), optional: coatingGears: Tool steel, nitrited steel, optional: special steel, surface coating, helical gearing, herringbone gearing (for extremely low-pulsation conveyance)Friction Bearings: Tool steel, Al-bronze, NiAg (nickel-silver), optional: special materials, surface coatingShaft Seals: Viscoseal, stuffing box, (Vacuum viscoseal)Heating Systems: Heat transfer oil, steamPump Size: From 22/13 to 280/280. (2,78 cm3/rev to 12.000 cm3/rev)Technical FeaturesHousing: Stainless steels, carbon steels, tantalum, titanium, Hastelloy®, ceramicsGears: All processable ceramics and metals, optional: surface coating, spur gearingFriction Bearings: Carbon, NiAg (nickel-silver), silicon carbide, zirconium oxide, tool steel, Al-bronze, special materials, optional: surface coatingShaft Seals: Single mechanical seal (ED), single mechanical seal with buffer fluid (AD), double mechanical seal with buffer fluid (DD), magnetic coupling, stuffing box, viscoseal and combinationsHeating Systems: Steam, water, heat transfer oil, electricalPump Size: From 22/6 to 280/280, (1,28 cm3/rev to 12.000 cm3/rev)intermediate sizes with narrower gearwheels for high-pressure applications are available as standard, e.g. 140/90 (693 cm3/rev)*The values listed are maximum values and must not coincide under certain circumstances.Gear pump for the extrusion and pressure boosting of medium to high viscosity media. These hydraulically or electrically hea-ted pumps are used in processes with high suction pressures, in which an increase in pressure is desirable, because of theloss of pressure in follow-on filters and melting pipes. Suitable for polymers like PS, PET, PVC, PC,PMMA etc. The WITTE EXTRU gear pump is also suitable forfoodstuff applications e.g. liquorice or chewing gum.EXTRUTechnical FeaturesHousing: Heat resistant carbon steel, e.g. 1.6582 (4340), stainless steel e.g. 1.4313 (E415), optional: coatingGears: Tool steel, nitrided steel, optional: special steel, surface coating, helical gearing, herringbone gearing (for extremely low-pulsation conveyance)Friction Bearings: Tool steel, Al-bronze, NiAg (nickel-silver), optional: special materials, surface coatingShaft Seals: Viscoseal, stuffing boxHeating Systems: ElectricallyPump Size: From 22/13 to 280/280 (2,78 cm3/rev to 12.000 cm3/rev).intermediate sizes with narrower gearwheels for high-pressure applications are available as standard, e.g. 140/90 (693 cm3/rev).Operating Parameters*Viscosity: Up to 40.000 PasTemperature: Up to 400 °C (752 °F)Suction Pressure: Up to max. 120 bar (1.740 psig)Differential Pressure: Up to max. 250 bar (3.626 psig)POLYOperating Parameters*Viscosity: Up to 40.000 PasTemperature: Up to 350 °C (662 °F)Suction Pressure: Vacuum to max. 15 bar (218 psig)Differential Pressure: Up to max. 250 bar (3.626 psig) High-pressure gear pump for the discharge of medium to high viscosity media from a reactor. The extra large inlet opening provides an even flow of product to the gearwheels even undervacuum or extremely low NPSH conditions and low rates. Offered with either a round inlet port, by means of which the suction flange of the pump is directly connected to the outlet flange of the reactor or as a low NPSH version, where thepump is connected between the pump and reactor flanges, in order to achieve an even larger and shorter inlet port. Typical applications are the transportation of PET, PS, PC, ABS, etc.Technical FeaturesHousing: Nitrided steel, tool steel, optional: special steel, surface coating, helical gearing, herringbone gearingGears: Nitrided steel, tool steel, special steel, helical gearing, herringbone gearingFriction Bearings: Tool steel, Al-bronze, NiAg (nickel-silver), optional: special materials surface coatingShaft Seals: Viscoseal, stuffing box, combination of viscoseal and stuffing box, double mechanical sealHeating Systems: Heat transfer oil, steamPump Size: From 22/22 to 360/360 (4,7 cm3/rev to 25.000 cm3/rev) Intermediate sizes, with wider gear wheels for lower differential pressure, are available as standard, e.g. 152/254 (3.170 cm3/rev).*The values listed are maximum values and must not coincide under certain circumstances.PUROCHEM MINIOperating Parameters*Viscosity: 0,0005 to 1.000 Pas (cP)Temperature: Up to 300 °C (580 °F), higher temperatures upon requestSuction Pressure: Vacuum to max. 15 bar (218 psig), higher with magnetic driveDifferential Pressure: Up to 120 bar (1.740 psig) Operating Parameters*Viscosity: Up to 500 Pas (cP)Temperature: Up to 200 °C (392 °F)Suction Pressure: Vacuum to max. 15 bar (218 psig)Differential Pressure: Up to max. 120 bar (1.740 psig) Stainless steel precision gear pump for conveying and mete-ring of fluids with medium to low viscosity. Through decades of experience in design and selection of optimal materials, this type of pump suitable for even the toughest of tasks and impresses with its reliability and metering accuracy in the vacuum as well as high-pressure applications.Typical areas of application for this type of pump are to be found in the cosmetic and food industries e.g. for conveying butter, margarine or vegetable oils. Pumps of this type can be supplied with or without heating (hydraulic or electric). For better cleaning the pump has different flushing connections. An industry leading special design of this pump helps to minimize dead spots.The CHEM MINI gear pump is particularly suitable for precisi-on metering tasks of low to medium viscosity media.The application range goes from classic transfer and metering tasks in the chemical and pharmaceutical industries up to the conveyance of monomers, oligomers and prepolymers during the production of polymers. Typical areas of application for this type of pump are to be found in the chemical, cosmetic, food, and petrochemical.The CHEM MINI takes fine metering tasks with high precision. Currently the smallest available pump has a specific volume of 0,2 cm3/rev. Smaller pumps are possible upon request.Technical FeaturesHousing: ®Stainless steels, tantalum, titanium, Hastelloy®Gears: All processable ceramics and metals, e.g. 1.4571 (316Ti), Ferralium®, Ferro Titanit®, Hastelloy®, optional: surface coatingFriction Bearings: Carbon, NiAg (nickel-silver), silicon carbide, zirconium oxide, tool steel, Al-bronze, special materials, optional: surface coating Shaft Seals: magnetic coupling, viscoseal Heating System: Steam, water, heat transfer oil, electricalPump Size: From 9/5,5 to 14/28 (0,2 cm3/rev to 2,95 cm3/rev) Special materials and different designs can be offered on request.Technical FeaturesHousing: stainless steel, tantalum, titanium, Hastelloy®Gears: DIN 1.4112 (440B) standard, optional: Ferralium®, Hastelloy®, Ferro Titanit®, DIN 1.4571 (316Ti) and other available Friction Bearings: NiAg (nickel-silver), zirconium oxide, silicon carbide, other materials on requestShaft Seals: Single mechanical seal, magnetic coupling mechanical seals of other suppliers are available as an option (with FDA approval)Heating System: hydraulic or electricPump Size: From 22/13 to 180/180 (2,78 cm3/rev to 3.200 cm3/rev). Special materials and different designs can be offered on request.*The values listed are maximum values and must not coincide under certain circumstances.Spare parts, repairs and optimisationSpecial PumpsIn addition to our standard pumps, we offer a wide range of special pumps, e.g. made of ceramic, tantalum, titanium or im-mersion pumps. Many of these pumps are custom built to suit the application in question and its specific operating parame-ters. WITTE for example produced one such pump, made com-pletely of ceramic, for transporting a highly corrosive medium at a temperature of 550° C.Metering SystemsThe WITTE metering system (WDS) enable precise volumetric metering of low to high viscosity media with gear pumps, even at high temperatures and pressures. Two series connected gear pumps, one measuring and one pressure boosting pump are pre-cisely controlled by a PLC control system, such that a precision of better than 0.1% is achieved, depending upon the medium.Spare partsWITTE spare parts are available world-wide. Extensive storagefacilities in Europe, USA and China guarantee the quickest possible delivery of spare parts. WITTE also supplies spare parts for other brands of gear pumps. The range of sizes varies bet-ween 22/6 and 280/280 (and for larger pumps upon request). Send your gear pump to WITTE for refurbishment or repair. Your pump is in the very best hands, with our highly qualified service engineers. We will provide an attractive offer for the repair, based on a precise itemisation and analysis of the damage. It goes without saying that the stringent quality criteria which apply to our pumps also apply to our spare parts.You can profit from our comprehensive specialist knowledge in the field of gear pumps not only through re-pair work. In addition to repair work, we can also help you to optimize your existing gear pump. Our experts will gladly discuss the options open for optimising your pump, starting with the WITTE viscoseal technology,which has proven itself over two decades, up to small but extremely effective detailed solutions on the pump itself. Simply give us a call and we will make you a non-binding offer. Either we personally or one of our countless local representatives, will be pleased to discuss your problems in person.Operating Parameters*Viscosity: Up to 500 Pas (cP)Temperature: Up to 200 °C (392 °F)Suction Pressure: Vacuum to max. 15 bar (218 psig)Differential Pressure: Up to max. 120 bar (1.740 psig) WITTE PUMPS & TECHNOLOGY GmbHEsinger Steinweg 44 aD-25436 Uetersen / Hamburg / GermanyT: +49 (0) 4122 / 92 87- 0 F: +49 (0) 4122 / 92 87- 49info@witte-pumps.comwww.witte-pumps.com05/2012 FIRM ENG REV1WITTE WORLDWIDE