Positive-Displacement Pumps
Positive-Displacement Pumps
WITTE precision gear pumps belong to the group of positive displacement pumps. These types of pumps are used as delivery, transfer or metering pumps, but also to build up pressure in the chemical and plastics industries. Gear displacement pumps have been established for years in the production of prepolymers and polymers or for conveying chemicals and additives. Due to their precision, the positive displacement pumps have very good efficiencies and are therefore ideally suited for dosing applications.
- Displacement pumps of the CHEM series are extremely flexible in their design and can be offered in various variants and configurations thanks to a modular system.
- Positive displacement pumps for differential pressures up to 120 bar, suction pressures vacuum up to 15 bar
- Positive displacement pumps for temperatures up to max. 500 °C in combination with a magnetic coupling.
- Positive displacement pumps for viscosities up to 1,000,000 mPas or higher.
- Positive displacement pumps with flow rates from 20 l/h to 170,000 l/h
Technical data of our positive displacement pumps
Technical fields of application:
- For viscosity up to 1,000,000 mPas
- Temperatures up to 500 °C as special design
- Differential pressures up to 120 bar
- Vacuum suction pressures up to 15 bar
Technical specifications:
- Magnetic coupling
- Mechanical seal
- Stuffing boxes
- Hydraulic heating
- Electric heating
Displacement pumps with with housings:
- Special steel
- Tantalum
- Titanium
- Hastelloy®
- Ceramics
- and further special materials
Displacement pumps with gear wheels and plain bearings:
- Special steel
- Ceramics
- Hastelloy®
- SiC
- Zirconium oxide
- Ferralium®
- Ferro Titanite®
- NiAg
- 1,4112
- 1,4571
Applications of our positive displacement pumps
WITTE positive displacement pumps are suitable for the following applications.
Media to be conveyed and dosing of:
- Strong alkaline solutions
- Bases
- Alcohols
- Additives
- Organic chemicals
- Inorganic chemicals
- Abrasive media
- Corrosive media
- Brine
- Liquid sulphur
- Esters
- Resins
- Glycerine
- Hardeners
- Isocyanates
- Phenols
- Acids
- Asphalt
- Bitumen
- Tar
- Hotmelt
- Glues
- Chewing gum mass
- Amino acids
- Lotions
- Shampoos
Further areas of application:
- EX-area, zone 1
- EX-area, zone 2
- EX-area, zone 21
- EX-area, zone 22
- Pharmaceutical industry
- Chemical industry
- Food industry
- Laboratories
- Cosmetic industry
Displacement Pump
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