A twin screw pump operates on the principle of positive displacement, meaning it transfers a specific volume of product based on the speed and pitch of the screws. As the two screws rotate, they form closed chambers that move in an axial direction. This movement creates a vacuum at the inlet side and generates pressure at the outlet. The design of the twin screw pump enables nearly pulsation-free operation, making it suitable for handling both high and low viscosity products. Additionally, the pump's ability to operate over a wide speed range allows for versatile applications, including the pumping of structure-sensitive products, fluids with solids, and the delivery of pulsation-free flow. Furthermore, twin screw pumps are known for their high suction performance and self-priming capabilities, making them ideal for a range of hygienic and industrial applications.
Versatility: Twin-screw pumps can operate over a wide speed range, allowing them to serve a dual function in hygienic applications by pumping products at low speeds and CIP (clean-in-place) fluids at high speeds. This eliminates the need for an additional CIP pump.
Pulsation-Free Flow: These pumps deliver a nearly pulsation-free flow, making them suitable for handling low-viscosity products, volatile and gaseous fluids, and applications where a smooth, consistent flow is essential.
Self-Priming Capability: Twin-screw pumps can create a high vacuum, enabling them to be self-priming, which is advantageous in various pumping scenarios.
Hygienic Specifications: The design of twin-screw pumps, such as the Packo twin-screw pump, conforms to the highest hygienic standards, such as EHEDG and 3A, making them ideal for delicate hygienic applications.
Operational Efficiency: These pumps offer simple and easy maintenance with low service costs, as well as integral geared adaptors that can be directly coupled with motors, enhancing operational efficiency.
Solids Handling: Twin-screw pumps are capable of handling fluids containing solids, adding to their versatility in industrial applications.
Pumping structurally sensitive products
Pumping fluids containing solids
Multi-purpose, low volume operation at low RPM and CIP cleaning at high speeds
Pumping high viscosity products and low viscosity products requiring high pressures
Applications requiring pulsation-free flow
✔ Flexibility to adapt to optimal operation in a variety of conditions: from high to low viscosity liquids
✔ 2-in-1 pumps: high speed range (up to 3000 rpm) ensures ‘2-in-1’ operation of the product and CIPs
✔ Pulse-free flow for gentle handling of the product and high absorption properties
✔ Reduced time-consuming rotor alignment, bearing positioning between gearbox and housing
✔3-A & EHEDG certified, elastomers comply with FDA & EC1935/2004 standards
✔ Integral gear adapter can be directly coupled to B5, 4pole motors
✔ Simple and easy maintenance, low service cost
✔Fully draining front cover design
According to ASME BPE, EHEDG, FDA and 3A standard, DONJOY got certificates of PED-97/23/EC and MD-06/42/EC issued by TUV, ……
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