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Rotary Twin Screw Pump Manufacturer & Supplier

Dev Engineers, a leading Rotary Twin Screw Pump manufacturer and supplier in Ahmedabad, Delhi, Mumbai, Kolkata, Chennai, Bangalore, Indore, Ludhiana, Pune, and Coimbatore. Being Rotary Twin Screw Pump manufacturer we provide excellent quality.

Working Principle of Rotary Twin Screw Pump

The Tw-Series Rotary twin-screw pump is a positive displacement pump with two intermeshing screws rotating in a pump casing insert. As the pump rotates, the intermeshing of the two contra-rotating screws, along with the pump housing, form volumetric chambers. These chambers fill with the pumped fluid and move it axially from the suction side of the pump to the higher pressure discharge side of the pump.

Rotary Twin Screw pump operate using two counter-rotating screw rotors which are engineered so that they rotate “towards each other”. This traps the gas in the space between the “screws” of their rotors. As the screws rotate, this trapped volume decreases which not only compresses the gas but moves it towards the exhaust.

Rotary Twin Gear Pump Features

  • Self-priming and positive displacement
  • No metal to metal contact assures negligible wear, tear, and long service life of pump.
  • Rotary twin screw pump can be run dry for some time without any damage
  • Robust casing design
  • Prevention of metal to metal contact
  • Ability of dry running for some time
  • Long and reliable service life
  • Axial constant smooth flow without churning
  • Unparallel suction power
  • Minimum wear and tear
  • Exchangeable cylinder
  • Built-in relief valve for overload protection
  • Heating jacket is available

Technical Data

Capacity Range : up to 550 m3/hr
Viscosity Range : up to 207600 cSt
Temperature Range : up to 80° C
Pressure Range : up to 16 Bar/td>

Advantages of Rotary Twin Screw Pump

  • Positive displacement and self-priming pump.
  • Prevention of metal to metal contact.
  • Ability of dry running for some time.
  • Long and reliable service life.
  • Axial constant smooth flow without churning.
  • Unparallel suction power.
  • Minimum wear and tear.
  • Exchangeable cylinder.
  • Built-in relief valve for overload protection.
  • Heating jacket is available.
  • Bulkhead version is available for critical applications.
  • API version pumps will be delivered on customer request.

Material of Construction

Casing Design : Casting, Fabricated SS, Custom
Casing : Cast Iron, Carbon Steel, Stainless Steel, Bronze, Special material
Casing Insert : Cast iron, Bronz, Special material
Screws & Shaft : Alloy Steel, Stainless Steel, Special material
End Covers : Cast Irons, Fabricated MS, Special Materials
Bearing Housing : Cast Iron
Relief Valve Parts : Cast Iron or Steel

Installation Features of Rotary Twin Gear pump

Bearing : External or Internal
Sealing Option : Mechanical Seal, Gland packing, Lip Seal, Cartridge seal, Custom
Mounting :Horizontally or vertically or pedestial
Direction of rotation : CW(standard), CCW(on request)
Ports location : Radial or axial inlet and radial outlet
Relief valves : Built-in, Line mounted, No RV
Jacketing Option :Full, Partial, No Jacket
Driving unit : Direct Couple OR Gear Box OR Pulley Drive with Prime Mover
Relief valves : Built-in, Line mounted, No RV

Rotary Twin Screw Pump Applications

Rotary Twin Screw Pump is Designed for handling sensitive, abrasive and high and low viscosity fluids and it is ideal for use in hygienic applications in the dairy, food, beverage and personal care industries.

  • Lubricating oils, Fuel oils, Chemicals, Diesel oil, Petrol, Crude Oil,.
  • Additives, Glycerin, Paraffin, Polyethylene, olyster, Polybutadiene, Polyisoprene.
  • Solvent, Molasses, Syrups, Mass.
  • Heating oil, Tar, Bitumen, Additives, Residues, Sludge, Benzene.
  • Benzene, Toluene, Xylene, Phenol, Aniline, Liquid soaps, Soap stocks, Caustic soda, Fatty acids.
  • Yeast Cream, Tomato Paste, Liquid Coffee, Glucose, Butter Oil, Mango Pulp etc.
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