Laboratory Equipment

KNF knows you'd rather work on your research than your lab equipment. We are proud to offer a complete line of diaphragm pumps and vacuum pump systems for all laboratory applications. KNF pumps provide strong flow, precise vacuum control and excellent solvent recovery. KNF liquid lab pumps enable transfer and dosing of even the most corrosive liquids quickly and accurately. Additionally, KNF's line of Rotary Evaporators are designed to impress thanks to their distinctive handling advantages, clever functional details and superior safety features.

Popular Products: Rotary Evaporators | LABOPORT Vacuum Pump |  LIQUIPORT Transfer Pump | SIMDOS 02 Dosing Pump | VC 900 Vacuum Controller | Vacuum Pump Systems

Pressure control valve

The KNF diaphragm pressure valve can be used to keep the system pressure constant, as a pressure relief valve to reduce pressure peaks or to prevent the media from being sucked directly through the pump. This accessory can be used in combination with a KNF diaphragm pump or as a standalone product.


Functions and Operation of a Pressure Control Valve

Model Pressure
(bar g)
FDV 1.300/1.301 from 2 to 6.5
FDV 300/301 from 0.8 to 2.5
FDV 1.30/1.31 from 2 to 6.5
FDV 30/31 from 0.5 to 2.5