Gear pumps for chemical applications
Applications range from classic transfer and dosing tasks in the chemical and pharmaceutical industries to the transport of monomers, oligomers and prepolymers during polymer production. Thanks to decades of design experience and optimal material selection, these chemical pumps are suitable for even the most difficult tasks and maintain their reliability and dosing accuracy in vacuum and high-pressure applications. Typical application areas for this type of pump can be found in the chemical, cosmetic, food, petrochemical and polymer industries.
WITTE’s CHEM series chemical pumps can operate horizontally, vertically and also as submersible pumps submerged in the medium.
Design variants for chemical pumps
Advantages at a glance:
Technical data
| Housing | Unalloyed and alloyed steel · Tantalum · Titanium · Hastelloy® · Ceramics |
| Gear Shafts | 1.4112, but also all other processed ceramic and metal materials, such as 1.4571, Ferralium®, Ferro Titanite®, Hastelloy®, etc. · optional with coating · gearing |
| Axial shaft seals | Single internal, single external or double mechanical seal · Stuffing box · Magnetic coupling |
| Heating | Steam · Water · Heat transfer oil · Electric |
| Friction bearing | Carbon · NiAG (nickel silver) · Silicon carbide · Zirconium oxide · Tool steel · Aluminum bronze · Special materials · optional with coating |
Operating parameters
| Viscosity | 0,5 to 1.000.000 mPas |
| Temperature | Up to 300°C · higher temperatures on request |
| Suction pressure | Vacuum up to max. 15 bar, magnet drive also higher |
| Transport pressure /differential pressure | Up to 120 bar |
| Pump sizes | From 0.2-9-5.5 to 12,000-280-280 |
Application examples for WITTE chemical pumps from the CHEM series
| Organic and inorganic chemicals | Alcohols · Additives · Bases · Ester · Glycerin · Resins · Hardeners · Isocyanate · Monomers · Oils · Phenols · Acids · Biodiesel · Asphalt · Bitumen · Tar · Hotmelt · Adhesives · Wax · etc |
| Polymers | Cellulose · Nylon 66 · Prepolymers · etc. |
| Food | Vegetable oils · Butter · Margarine · Flavoring · Chocolate · Fondant · Licorice · Chewing gum mass · Vitamins · Syrup · Gelatin · etc. |
| Pharmaceutical and cosmetic products | Amino acids · Lotion · Shampoo · Vitamins · etc. |
| Other medium | Cellulose · Hotmelt · various adhesives |
Heating variations [CHEM] chemical pumps
Standard heating (hydraulic)
Premium heating (hydraulic)
Electrical heating
Industries
Chemical Industry
Gear pumps for the chemical industry
Pharmaceuticals & Cosmetics
Applications for gear pumps from WITTE. Products & Solutions
Food Industry
Fields of application for WITTE gear pumps
Petrochemicals / Offshore
Fields of application for WITTE gear pumps
Plastic Industry
Plastics production – Gear pumps for conveying plastic melts
