SDP/ESDP Series Screw Vacuum Pumps
With up to 90% pumping efficiency (twice as high as liquid ring pumps), our patented self-conjugate curved rotor profile ensures continuous, uniform meshing with minimal axial leakage. The variable pitch ESDP series offers low risk of seizure and low exhaust temperature.
Product Features
Ultimate Vacuum
1.33Pa (A)
High Pumping Efficiency
With up to 90% pumping efficiency (twice as high as liquid ring pumps)
Energy-Saving & Eco-Friendly
No water, oil or other liquids needed for sealing and lubrication in the working chamber, energy-saving and eco-friendly
Patented Rotor Profile
Our patented self-conjugate curved rotor profile ensures continuous, uniform meshing with minimal axial leakage, significantly improving pumping efficiency and ultimate vacuum level
Exhaust-End Compression
The constant pitch SDP series features exhaust-end compression, preventing gas liquefaction in the pump chamber, ensuring enhanced stability, high vacuum level and minimized backflow
Internal Compression
The variable pitch ESDP series realizes internal compression for balanced thermal distribution, offering low risk of seizure and low exhaust temperature
Easy Maintenance
Enables in-situ cleaning of the pump chamber without disassembly or removal of inlet/outlet pipelines
Multiple Sealing Options
According to operating conditions, lip seals, "zero" leakage mechanical seals + PLAN23 flushing scheme, or composite seals can be provided
Corrosion-Resistant Material
Hastelloy coating and superalloy materials are available for varying corrosive operating conditions
"Zero" Process Contamination
Ensures clean operation with no pollution to pumped gases, evacuated spaces, or surrounding environment
Product Introduction
Performance Range
- Ultimate Vacuum
- 1.33 Pa (A)
- Capacity Range
- 121~3000 m³/h
Applications
Vacuum Drying
Vacuum Crystallization
Vacuum Extraction
Vacuum Distillation
Oil/Gas Recovery
Steel Ladle Degassing
Edible Oil Deodorization
Solvent Recovery
