Rotary pump is by one or more pump rotor rotation to inhale and discharge liquid, also known as the rotor pump. Rotary pump in many forms, but their operating principle is similar. Chemical plants are more commonly used gear pump and screw pump.
Features (compared to centrifugal pumps):
1. Delivery flow can be more precise control; centrifugal pump flow can not be controlled, increased resistance will lead to reduced traffic.
2. The material is transported smoothly, no damage, low speed; centrifugal pump speed, resulting in impact, bubbles, etc., but also the role of fragmentation.
3 can deliver high viscosity materials.
4. Indenter higher, suitable for long-term high-resistance quantitative delivery.
5 simple structure easy to wash.
Disadvantages: complex production, high precision, high cost.
Materials: Beverages (condensed milk, syrup, chocolate), fruit concentrates (ketchup, jam), pastes (meat emulsion, fat).
Rotary pump: rotor pump, gear pump (syrup, grease), vane pump, screw pump.
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