Topacelab Hot Sales Diaphragm Vacuum Pump with Factory Price
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- Supplier: Shanghai Topace Scientific Instruments Co. Ltd.
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Product Overview
Description
Diaphragm vacuum pump series
Application:
Vacuum drying/
vacuum enrichment/
Rotary evaporaton/
Decompress distillation/
Centrifugal acceleration/
Solid phase extraction and so on.
Diaphragm vacuum pumps (also called membrane pumps) are oscillating positive displacement pumps. The diaphragms generate vacuum by expanding the volume in the vacuum chamber which in turn reduces the pressure in the vacuum chamber thus causing atmospheric pressure air to be pushed into the chamber. The air in this chamber is then pushed out from the vacuum chamber through a different route (gas outlet) with the use of valves. These periodic movements of the diaphragm generates vacuum at the inlet of the pump. Attention have to be paid when working with gas mixtures containing condensable gases, e.g. water vapor or solvents.
These gases will result in their condensing somewhere in the air flow of the pump. This causes pressure build up in the vacuum chamber which in turn reduces the service life of the diaphragms and valves.
To prevent condensation or to discharge condensates produced by the pump, the gas ballast valve should be opened. By opening the gas ballast valve, a small amount of air is allowed into the vacuum chamber, reducing the concentration of the condensable gas. Purging of condensation can also be done by allowing full gas flow at atmospheric pressure through the pump for several minutes.
To protect the internal valves and diaphragms, fit an up stream condensation trap (such as a Woulff bottle). The release of solvent vapors into the atmosphere can be avoided by fitting a downstream discharge condensation trap. The exhaust air hose should generally deliver to a laboratory extraction system. Fitting an exhaust air hose will also reduce the noise level.
To prevent condensation or to discharge condensates produced by the pump, the gas ballast valve should be opened. By opening the gas ballast valve, a small amount of air is allowed into the vacuum chamber, reducing the concentration of the condensable gas. Purging of condensation can also be done by allowing full gas flow at atmospheric pressure through the pump for several minutes.
To protect the internal valves and diaphragms, fit an up stream condensation trap (such as a Woulff bottle). The release of solvent vapors into the atmosphere can be avoided by fitting a downstream discharge condensation trap. The exhaust air hose should generally deliver to a laboratory extraction system. Fitting an exhaust air hose will also reduce the noise level.
Product feature
Equipped with permanent magnet motor
comveient maintenance and repair
Adjustable pumping speed
Low noise, light weight
Resistance to chemical
Working constantly
Specification
Model | DVP2 | DVP4 | DVP2D | DVP4D | DVP2H | DVP4H | DVP8 | DVP16 | ||||||||
Pumping Speed (m3/h) | 2 | 4 | 2 or 4 | 4 or 8 | 2 | 4 | 8 | 16 | ||||||||
Ultimate Pressure (mbar) | ≤ 8 | ≤2 | ≤2 or ≤ 8 | ≤ 1.5 or ≤2 | ≤1 | ≤0.5 | ≤30 | ≤ 150 | ||||||||
Frequency Conversion | Adjustable between 1300~ 1800 | Rated at 1400 | ||||||||||||||
Safety Function | Motor Anomaly Detection | |||||||||||||||
Pumping Head | 1 | 1 | 1 or 2 | 1 or 2 | 1 | 1 | 1 | 1 | ||||||||
Power Supply (w) | 180 | 360 | 360 | 400 | 360 | 600 | 400 | 400 | ||||||||
Inlet Connector | 10mm/KF16 | 10mm/KF16 | 10mm/KF16 | 10mm/KF16 | 10mm/KF16 | 10mm/KF16 | KF16 | KF16 | ||||||||
Dimensions (cm) | 27*24*15 | 38.5*24*17 | 28*27*17 | 50*25*25 | 28*27*17 | 50*25*25 | 37.5*20*31 | 37.5*20*31 | ||||||||
Weight (kg) | 10 | 17 | 16 | 25 | 16 | 25 | 20 | 20 | ||||||||
Materials In Contact With Medium | ||||||||||||||||
Components | Wetted parts | |||||||||||||||
Displacing Valve | FFKM | |||||||||||||||
Diaphragm | "Sandwich Configuration" PTFE | |||||||||||||||
Inlet/outlet | PTFE | |||||||||||||||
Fittings | PTFE 、PVDF | |||||||||||||||
Inlet plate | Carbon Fiber Reinforced ECTFE | |||||||||||||||
Cavity/Diaphra gm Clamping Disc | HAIII and Teflon | |||||||||||||||
Optional Accessories
Soultion filter
Dust filter
Gas ballast valve
Packing & Delivery
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