DP-401 Diaphragm pump
DP-401 Diaphragm pump
DP-401 Diaphragm pump
DP-401 Diaphragm pump
Diaphragm Vacuum Pump

DP-401 Diaphragm pump

DP-401 vacuum chemical diaphragm pump provides vacuum conditions for evaporation, distillation, crystallization, drying, sublimation, filtration and decompression, and degassing, as well as solvent recovery, various highly toxic, flammable and explosive, strong acid and strong alkali extraction.


- It can replace circulating water vacuum pump and rotary vane vacuum pump.
- No working medium is required and the working part is free of friction.
-Vacuum stability, easy to control vacuum, can be adjusted according to experimental needs.
- All parts in contact with the gas are treated with Teflon (PTFE) surface and have complete chemical resistance.
- The valve plate is made of imported materials.
- Reasonable gearbox design and self-cooling exhaust system for long-term continuous operation.
- Small size, lightweight, easy to move, saving lab space.
- Easy to repair and maintain.
- Solid particles and liquid water can be prevented from entering the pump body.


vacuum regulator

valve plate



  The DP-401 vacuum pump is suitable for use in vacuum equipment for certain equipment:

Freeze dryer

  After sale

- 1 year warranty service and all life maintenance.
- Technical Egineer are avalible for oversea trainning.
- Free change for some parts
- Remote control technical consult
- Free installation DVD
- Maintenance plan




Delivery method

Model DP-401
Power supply (V/Hz) 220/50
Motor power (W) 250
Max. vacuum degree (Mpa) 0.095
Rotary Speed 1400rpm
Sucking rate (L/min) 45
Suction diameter (mm) Φ10
Exhaust diameter (mm) Φ10
Dimensions (mm) 440L*195W*290H
Weight (kg) 15

1. What is the main material for the 401 diaphragm pump?

All parts exposed to gas require surface treatment with Teflon (PTFE) for complete chemical resistance.

2. How to use the vacuum diaphragm pump?

The DP-401 diaphragm pump is very convenient to use, it can be used when it is powered on. No additional media needs to be added or carefully checked.

3. How will you deliver these goods?

It will be decided based on your quantity. Usually we will choose international express, air and sea.