Laboratory Pumps and Equipment

Lab Pump Finder

KNF is proud to offer a complete line of laboratory pumps and systems for a variety of bench applications. KNF laboratory vacuum pumps provide strong flow, precise control and excellent solvent recovery. KNF liquid lab pumps enable transfer and dosing of even the most corrosive liquids quickly and accurately.

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