G-Type Sanitary Screw Pump Overview The G-Type sanitary screw pump is a highly efficient and hygienic pumping solution designed for applications requiring strict cleanliness, gentle product handling, and reliable performance. It is widely used in industries such as food and beverage, pharmaceuticals, cosmetics, and biotechnology, where maintaining product integrity and preventing contamination are critical. Design and Construction The G-Type sanitary screw pump features a robust yet compact design, constructed from high-quality stainless steel (typically 316L or 304) to ensure corrosion resistance and compliance with sanitary standards. Its smooth, polished surfaces minimize bacterial growth and facilitate easy cleaning, meeting requirements such as 3-A, EHEDG, or FDA guidelines. The pump’s non-pulsating, low-shear operation makes it ideal for handling sensitive fluids, including viscous, shear-sensitive, or abrasive media. Working Principle This pump operates on the positive displacement principle, utilizing a single screw (rotor) that rotates within a double-threaded stator (elastomer liner). As the screw turns, it creates sealed cavities that move the fluid axially from the suction to the discharge port with minimal turbulence. This design ensures consistent flow rates, even with varying pressures or viscosities, while preventing product degradation. Key Features - Hygienic Performance: The pump’s crevice-free design and CIP/SIP compatibility ensure thorough cleaning and sterilization. - Gentle Handling: Low shear and minimal agitation preserve product quality, making it suitable for delicate fluids like creams, sauces, or live cultures. - Versatility: Capable of handling a wide viscosity range (from thin liquids to pastes) and solids-containing fluids without clogging. - Energy Efficiency: The screw pump’s efficient displacement mechanism reduces power consumption compared to centrifugal pumps, especially for high-viscosity applications. - Self-Priming: The pump can prime itself without external assistance, enhancing operational convenience. Applications The G-Type sanitary screw pump excels in transferring, dosing, or metering products such as: - Dairy products (yogurt, cheese, milk) - Beverages (juices, syrups) - Pharmaceutical solutions and ointments - Cosmetics (lotions, gels) - Processed foods (sauces, purees) Maintenance and Reliability With minimal wear components (primarily the stator), maintenance is straightforward. The stator can be easily replaced without disassembling the entire pump, reducing downtime. The pump’s durable construction ensures long service life, even in demanding environments. Conclusion The G-Type sanitary screw pump is a versatile, hygienic, and efficient solution for industries requiring precise and gentle fluid handling. Its combination of reliability, ease of maintenance, and compliance with stringent sanitary standards makes it a preferred choice for critical applications.