These Portable Two Stage Neuberger KNF Laboport Diaphragm Vacuum Pumps have a Flow Rate of 10L/min (0.35 CFM) and a vacuum of 29.7 inHg (6 Torr). These oil free diaphragm pumps are ideal for use with all brands of rotary evaporators, concentrators, vacuum ovens and filtration devices. Features include corrosion-resistant PTFE heads, tough multi-port FFPM valves, and durable PTFE-bonded diaphragms. Built to Last, KNF Neuberger pioneered in the use of solid PTFE materials for its vacuum pumps over 45 years ago. These products are legendary for their low-maintenance and robust design.Easy to use and maintain. They are lightweight, portable and enable you to move them to wherever and whenever you need vacuum. Connect the pump to your system with a vacuum hose and setup is complete. They handle the most aggressive vapors without damage to the pump and tolerates abuse found in busy labs. There are no metal parts in contact with the gas stream, thus eliminating corrosion and reducing overall maintenace costs. This is a new pump and set up for 115 Vac 60 Hz. Hose connections are 3/8 inch ID barb style connectors. 3/8 inch ID vacuum grade vinyl hose tubing is available on this website, Part No. P103304.

These Portable Two Stage Neuberger KNF Laboport Diaphragm Vacuum Pumps have a Flow Rate of 20 L/min (0.70 CFM) and a vacuum of 29.7 inHg (6 Torr). These oil free diaphragm pumps are ideal for use with all brands of rotary evaporators, concentrators, vacuum ovens and filtration devices. Features include corrosion-resistant PTFE heads, tough multi-port FFPM valves, and durable PTFE-bonded diaphragms. Built to Last, KNF Neuberger pioneered in the use of solid PTFE materials for its vacuum pumps over 45 years ago. These products are legendary for their low-maintenance and robust design.Easy to use and maintain. They are lightweight, portable and enable you to move them to wherever and whenever you need vacuum. Connect the pump to your system with a vacuum hose and setup is complete. They handle the most aggressive vapors without damage to the pump and tolerates abuse found in busy labs. There are no metal parts in contact with the gas stream, thus eliminating corrosion and reducing overall maintenace costs. This is a new pump and set up for 115 Vac 60 Hz. Hose connections are 3/8 inch ID barb style connectors. 3/8 inch ID vacuum grade vinyl hose tubing is available on this website, Part No. P103304.

This KNF Neuberger compact, two stage, double-head, oil-free diaphragm dry pump, model N938.50 KN.18, has a flow capacity of 32 l/min. and an ultimate vacuum of 9 Torr (12 mBar). The inlet and outlet are barbed connectors for 10mm ID tubing. The pump is operated on 115 VAC single phase power and weighs just 15.2 lb. This N938.50 KN.18 pump has EPDM (neoprene) diaphragms and gaskets, oversized bearings, and FPM O-rings for virtually maintenance-free long life. This pump is rated to pump air, gas or vapor at temperatures between 5 °C and 40 °C. For those that require improved corrosion resistance, the N938.50 KT.18 version of this pump has PTFE diaphragms. These KNF N938.50 KN.18 pumps are equipped with parallel and series connection for the pump heads - resulting in a high pneumatic performance, a durable product and compact size. They transfer and pump down without contamination. Special valves ensure that the product can cope easily with vapour and condensation, making them suitable in a wide range of laboratory applications.