ACE Our screw pumps are suitable for very broad application range and are used in all branches of industry for the continuous, pressure-stable, gentle and low-pulsation conveyance of almost any substance. One advantage for the operator is that such valveless positive-displacement pumps are also capable of transporting stringy material safely. Whether for sludge, chemical substances, adhesives, petroleum or yogurt,
Application – range is 0.13 GPM to 240 GPM (0.49 to 908 LPM) and 100 PSI to 10,000 PSI (6.9 BAR to 689 BAR). Pumps are available in 304, 316, and duplex stainless steel.
Main Features and Benefits Pumps
Gear pumps are compact and simple with a limited number of moving parts. They are unable to match the pressure generated by reciprocating pumps or the flow rates of centrifugal pumps but offer higher pressures and throughputs than vane or lobe pumps. Gear pumps are particularly suited for pumping oils and other high viscosity fluids.
Of the two designs, external gear pumps are capable of sustaining higher pressures (up to 3000 psi) and flow rates because of the more rigid shaft support and closer tolerances. Internal gear pumps have better suction capabilities and are suited to high viscosity fluids, although they have a useful operating range from 1cP to over 1,000,000cP. Since output is directly proportional to rotational speed, gear pumps are commonly used for metering and blending operations. Gear pumps can be engineered to handle aggressive liquids. While they are commonly made from cast iron or stainless steel, new alloys and composites allow the pumps to handle corrosive liquids such as sulphuric acid, sodium hypochlorite, ferric chloride and sodium hydroxide.
External gear pumps can also be used in hydraulic power applications, typically in vehicles, lifting machinery and mobile plant equipment. Driving a gear pump in reverse, using oil pumped from elsewhere in a system (normally by a tandem pump in the engine), creates a hydraulic motor. This is particularly useful to provide power in areas where electrical equipment is bulky, costly or inconvenient. Tractors, for example, rely on engine-driven external gear pumps to power their services.
Application of Areas
Due to their ability to provide high flow rates even in viscous liquids, screw pumps are ideal for fuel transfer, elevators, and other similar industrial applications. Single screw pumps, or Archimedean screw pumps, are used for simple water movement such as for sewage inlet pumps, storm water pumping, drainage pumping, and to move industrial waste water.
The main industrial application areas, customised as per customer’s requirements –
- Chemical and Pharmaceutical Industries
- Food Industries
- Iron and Steel Industries
- Textile Industries
- Leather and Paper Industries
- Rubber and Plastic Industries
- Tar and Bitumen Processing Industry
- Wood Processing and Furniture Industry
- Oil refining and Many More…