Quick Answer: The Double Stage Rotary Pump is an electrically operated laboratory vacuum pump that uses a two-stage rotary mechanism to remove air or gas from a closed system. It gives a deeper and more stable vacuum than a single stage pump.
Last updated: October 2026
Key Features
Two-stage rotary mechanism for deeper vacuum generation
Electrically operated, with a metal body housing the motor and pump assembly
Inlet port takes a vacuum hose to a chamber or apparatus
Suits vacuum filtration, vacuum drying, degassing and pressure experiments
Technical Specifications
Specification
Value
Pump type
Double stage rotary vacuum pump
Working principle
Two-stage rotary mechanism for deeper vacuum generation
Operation
Electrically operated
Body
Metal body with motor and pump assembly
Application
Vacuum generation and air removal
About This Product
In physics teaching the pump evacuates closed apparatus for pressure and gas-behaviour demonstrations, while chemistry and biology labs use it for vacuum filtration, drying and degassing. All joints and tubing must be airtight, and the vacuum is released slowly before the hose is disconnected. Educational Instrument can dispatch the Double stage rotary pump to laboratories in Tajikistan, Kenya, Somalia, Costa Rica, Cambodia and Bangladesh.
Frequently Asked Questions
How does a double stage rotary pump differ from a single stage pump?
It has two pumping stages, which gives a better and more stable vacuum than a single stage rotary pump.
