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The DURREX twin-rotor lobe pump is a rotary positive displacement pump developed after decades of research and design. The manufacturing engineering and accuracy has come up to advanced world level.
The twin-rotor lobe pumps are produced according to the following manufacturer's standards: Foodstuffs, Chemicals, Regular, Oil-fields and Special-type. The core parts and sealing devices of the products are made of different materials and different sealing methods according to different properties of the material and technological processes. There are 12 varieties of DURREX rotors, which can be set interchangeably in the same pump.
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Schematic diagram |
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Rotor type |
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| Sealing schemse |
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• Mechanical Sealing
• Water-cooling machanical sealing
• Material: rungsten carbide, silicon carbine,
graphite |
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• Sniffing Sealing
• Materials: self-lubricating PTFE fiber |
Features
- Gap is kept between the rotors and between the pump body, no friction,long life
- Simple installation and disassembling, easy maintenance and cleaning, strong resistance to wearing
- High efficiency and energy-saving, low failure rate, reliable sealing and low noise
- Special materials are used to pump materials with solid granules, like sludge and sewage
- Capable to pump the viscous material below 2 million cp and pulp with the solid volume of 60%
- Equipped with frequency, flux can be adjusted at will and can be used as general measurement pump
- Flange, screw or coupling interfaces can be used, as required by the customer
- Capable of pumping mixtures of gas, fluid, and solid materials
- Thermal insulation & cooling pump is of a built-in structure, with high heat conductivity
- Movable pumps can be used to pump canned fluids materials, with intake vacuum level of 0.09 Mpa
- Hygienic safety valves can be set at the pump head if customer required
Application
- Consumer chemicals:
AES, LAS, AOS, K12, glycerine, sorbic alcohol, fatty alcohol, sulfuric grease, face cleanser, shampoo, dishwasher detergent, bathing shampoo, skin cream, toothpaste, soap, soap powder and slurry.etc.
- Refined chemicals:
dye stuffs, pigment, midbodies, slurries, chemical assistants, dying assistants, eather hemicals, silicone oil, viscose glue, shoeshine, suspending liquid and colloidal powder, etc.
- Petro chemicals:
thickened oil, heavy oil, crude oil (gas, liquid and solid), greasy filth, pitch, grease, lubricant, catalyzer, polyatomic alcohol, chemical fiber slurry, coal liquid, etc.
- Coating materials:
oil paint, dope, printing ink, insulating paint, resin, additives and assistants, organic solvent, etc.
- Foods:
chocolate, concentrated milk, yoghourt, honey, jam, ice cream, milk, syrup, yeast, meat slurry, jelly, seasonings, lees, soybean protein, etc.
- Pharmaceuticals:
ointments, extractum, medicine latex, pill paste, syrup, healthcare products, drugs, etc.
- Paper making:
paper pulp, adhesives, assistants, coating materials, etc.
- Environmental protection:
sewage, sludge, medicament, suspending liquid, manure, fertilizing solution, etc.
- Chemicalfiber:
pectic slurry,vinylon slurry, acrylic fiber slurry, ammonia slurry, polyester slice, terylene, polypropylene fiber, rayon, functional fiber, etc.
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