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News

New variable speed DC vacuum pumps suit laboratory requirements

Welch Vacuum Technology : 28 April, 2008  (New Product)
The new totally dry Welch Variflow DC-Drive Vacuum Pumps are ideal for OEM and laboratory applications and can be used for full chemical-duty and standard-duty operation.
The Variflow Pumps offer high performance two-stage diaphragm mechanism with 45 LPM flow rate and ultimate vacuum to 1.5torr (less than 2mbar).

The Chemical Duty Model 8115D-20 uses PTFE heads and diaphragms and FKM valves. The Standard Duty Model 8115D-25 uses aluminum heads, EPDM diaphragms and valves.

Flexible OEM designs are available with or without power supply and controller in an enclosure or as a bare pump.

All models use 24V brushless DC motors with a maximum power consumption of 85W and can restart under vacuum.
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