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Segment valves and segment orifices

Robust, durable and highly precise in expanded line sizes

Segmented disc valves icon Segment valves and segment orifices by Schubert & Salzer

Segmented Disc valves by Schubert & Salzer offer high precision over a wide flow range. Due to the robust design and the bi-directional flow capability, segmented disc valves are suitable for fluids as well as steam and other gases. The valve also is not affected by contaminated media. Range of applications varies amongst a large degree of process industries and utilities.  Availability in sizes through 32 inch.

Segmented disc valves
   

Functional principle of segmented disc valves

Segment disc valves incorporate a very simple yet effective design.

The central throttling element - a pair of segment discs that glide and seal against each other - are positioned in the valve body perpendicular to the flow direction. A fixed segment disc determines the Cv and flow characteristic. The fixed disc is engaged by a moving disc having the same geometry. Driven in a linear motion by a serrated actuator stem that sequentially increases or decreases the cross sectional area of the two segmented discs, these seating elements provide high rangeability with precise control.

The moving disc is spring loaded and this constant force allows bi-directional flow. The valve can also be installed in any direction and low differential pressures are nonproblematic.

This special design makes segment disc valves unique inasmuch as they combine precision control in extreme operating conditions with tight sealing and very low exposure to wear.

Segmented disc orifices

Adjustable orifice for the precise adjustment of variations in flow.

  • Adjustable while installed
  • Defined characteristics
  • Travel stops
  • ​​​Space-saving wafer design
  • ​​​​​Light weight
  • Low-noise operation
  • ​​​​​​​High Cv values
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