Pneumatic Screw Pump
The Meyer Pneumatic Screw Pump is a robust and reliable solution for dry material injection in pneumatic conveying systems. Specifically designed to feed dry, pulverized materials into the conveying line, this heavy-duty pump excels where traditional dilute phase feeders and rotary airlocks often struggle, such as in handling abrasive wear, friable materials, or fine dust.
Unlike rotary airlocks, which rely on tight clearances to create a seal against the conveying air, the Screw Pump utilizes the conveyed material itself to form a natural seal. This innovative design significantly reduces the potential for blowback, especially during priming or when the pump is running empty, thanks to an integrated gate that prevents reverse airflow.
The Screw Pump is engineered to minimize the issues associated with abrasive wear and blow-back, which often lead to premature failure in conventional systems. By doing so, it reduces maintenance frequency and costly unplanned downtime, offering greater operational efficiency and long-term reliability.
Meyer offers five standard models of the Screw Pump, each optimized during fabrication and assembly to meet the unique requirements of your specific material handling needs. With tailored configurations, this pump provides a versatile and durable solution to enhance the performance and longevity of your pneumatic conveying systems.
Product Features
Maximum Operating Temperatures up to 450°F
Low conveying pressure -4 to 12 PSI
Plastics, Chemical, Cement, Mining, Food, Asphalt
Heavy Steel Channel Frame
Quad Seal
Integral check valve
Hard coated shaft assembly
Low inlet hopper height
Three conveying air inlet points
No product contact with bearings
Oversize Bearings
Product Chart
| MODEL | 44 | 45 | 66 | 67 | 68 |
| CFM | 6 | 11 | 22 | 34 | 45 |
| LINE SIZE | 4 | 5 | 6 | 8 | 10 |
Product Customization
No two applications are alike—and at Meyer Industrial, we get that. Our rotary airlock valves are engineered around your unique requirements, ensuring the perfect fit for your process, environment, and industry standards.
Partner with our experts to create a solution that performs exactly the way you need it to
Relevant Industries
Explore the wide range of industries that rely on Meyer Industrial products—and see how our solutions are used in other industries.
Plastic and Rubber
Rotary airlock valves for plastic and rubber processing applications help maintain controlled discharge, stable system pressure, and reliable airflow when handling plastic pellets, resins, and rubber materials across manufacturing operations.
Chemicals
Rotary airlock valves for chemical processing applications help maintain controlled discharge, stable system pressure, and reliable airflow when handling powders and fine bulk materials across chemical manufacturing operations.
Cement
Rotary airlock valves for cement applications help maintain consistent material flow and reliable pressure sealing in pneumatic conveying and dust collection systems throughout cement processing.
Mining and Minerals
Rotary airlock valves for mining and mineral processing applications help maintain controlled discharge, stable system pressure, and reliable airflow when handling raw ore, mineral fines, and abrasive bulk materials.
Food
Rotary airlock valves for food-grade processing applications help maintain controlled discharge and reliable pressure sealing in pneumatic conveying and dust collection systems handling dry food ingredients.
Asphalt
Rotary airlock valves for asphalt plants support consistent material discharge and dependable airflow control in high-throughput operations, especially during peak seasonal production.