SchuF is the original inventor of the Lift Plug and Bottom Outlet types of valve. Patents were received in 1914 and 1923 respectively.

Inventor and Innovator


Many patented innovations have followed over the years including:

  • Dead space free polymer diverter valves,

  • Tangential sampling,

  • Polymer injection systems, forced or tangential flow diverter valves,

  • Special angle control valves for slurries including the Bell x³ Control Curve (see below),

  • Fire safe PTFE and glass lined valve and

  • the latest innovation, the 2-in-1 Control valve used in a Heavy Oil Upgrading plant


Advanced Mechanical Engineering

CFD Simulation                                        Diverter valve drawing                          

 CFD Simulation v1    Strichzeichnung Diverter Valve


Advanced Multiport Selector Valve                       Polymer "Monster" Valve

 ManiFlow Selector Valve   Giant Diverter Valve




Through the accumulation of industry knowledge, manufacturing expertise and design know-how, SchuF has become the expert in innovative valve designs required for flow control of process industries.



The Bell x³ Control Curve                  

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Video gallery
A video showing the operation of a recently-manufactured SchuF powder-sampling Valve is now available-please click the link below, which will take you to the Vimeo video-sharing website. The video will begin automatically. more