Brand: Welch
Features:
- Price for 1 pc
Welch
Details: Welch, 2014B-01, 1 Ph DryFast Collegiate Diaphragm Pump with North America Plug 115V Welch DryFastTM PTFE Diaphragm Vacuum Pumps enable precise vacuum control for organic evaporations with exclusive Advanced Vapor Management (AVM). Oil-Free, portable, chemical resistant, 1 head diaphragm design simplifies maintenance. Choose from seven dry PTFE vacuum pump models with flows up to 70 L / min and adjustable vacuum down to 2 Torr. Economical DryFastTM vacuum pumps are perfect for tough lab applications. Features Chemical Resistant Oil-Free Tuneable Vacuum Applications Replace Water Aspirator Apply vacuum in routine laboratory procedures affordably - w/o wasteful water usage and contaminants contributed to your water system waste stream. Select a Standard Duty WOB-L vacuum pump for aqueous vapors or Chemical Duty DryFast pump for organic solvent or harsh acid / base fumes. Rotary Evaporator Rotary evaporators are typically used to remove solvents following chemical reactions. Combined with gentle heat from the evaporator bath, controlled vacuum is used to bring solvents to boiling or near-boiling. Efficient solvent distillation requires vacuum balanced to achieve sufficient pressure reduction and molecular flow w/o losing sample or overrunning the condensing capabilities of your rotovap. Vacuum Filtration Many filtrations require only minimal vacuum to proceed; deep vacuum is not required. Vacuum pump flow required is roughly proportional to the total surface area of filters being used. Filtration of particulate-clogging samples can be improved somewhat with deeper vacuum, but a combination of larger filter surface area, smaller samples, and sequential use of decreasing porosity filter papers may also be required for timely filtration. Choose a standard duty vacuum pump for aqueous vapors; use a PTFE pump for resistance to harsh chemicals. 2014B-01 by Welch
