Overview
Settima screw pumps are Italian-engineered positive displacement pumps renowned for their precision in handling medium-to-high viscosity fluids. The brand specializes in industrial-grade solutions with flow rates ranging from 1 to 500 m³/h and pressures up to 48 bar. Unlike centrifugal pumps, Settima's screw pump technology ensures smooth, pulse-free flow—a critical requirement in processes like food filling or chemical dosing. Their modular design allows customization for specific industry needs, including ATEX-certified models for explosive environments.
Structure and Working Principle
The pump consists of a driven rotor and two idler stators that form sealed cavities along the screw axis. As the rotor rotates, these cavities move axially, trapping and transferring fluid without turbulence. Key components include the hardened steel rotor, nitrile or EPDM stators (for abrasion resistance), and precision-machined housing. The mechanical seal arrangement varies by model, with options like double seals for hazardous fluids or lip seals for food-grade applications.
Key Features
Settima pumps achieve up to 95% volumetric efficiency even with fluids above 100,000 cP viscosity. Their bi-rotor design minimizes shear forces, making them ideal for shear-sensitive products like cosmetics or latex. Other advantages include reversible flow capability, NEMA-rated motors, and compliance with EHEDG/3A sanitary standards. Some models integrate variable frequency drives (VFDs) for energy-saving flow control.
Application Areas
Common industrial uses include chocolate transfer in confectionery, silicone injection in automotive manufacturing, and resin dosing in composites production. Pharmaceutical applications often specify cGMP-compliant models with polished surfaces. In wastewater treatment, heavy-duty variants handle sludge with up to 60% dry solids. The pumps also serve marine applications (e.g., fuel transfer) due to their self-priming capability and compact footprint.
Maintenance and Precautions
Routine maintenance involves checking seal integrity (every 6–12 months) and stator wear (replace if elongation exceeds 5%). Always prime the pump before startup to prevent stator damage. For abrasive fluids, specify tungsten carbide shaft protection sleeves. Storage recommendations include rotating the shaft monthly if idle for extended periods to prevent seal sticking. Contamination risks can be mitigated by installing flush ports for CIP (Clean-in-Place) procedures.
B2B Procurement Guide
When sourcing Settima pumps, provide vendors with detailed fluid properties (viscosity, temperature, abrasiveness) and required certifications (e.g., FDA, EC1935/2004). Lead times for custom configurations typically range 8–12 weeks. Consider total cost of ownership: energy-efficient models may have higher upfront costs but lower lifetime expenses. For OEMs, volume discounts often apply for orders exceeding 10 units annually. Always verify local service support for spare parts availability.
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