ProDV® Spheri Valve

Pressure-tight compressed air operated Pneumatic Conveying valve

ProDV® Spheri Valves are part of our Clyde Process range – proudly the original and most reliant

The operating efficiency of many material handling systems rely upon the original and world’s best ProDV® Spheri Valve, currently installed in over 10,000 applications worldwide. Simple in design and low in maintenance, this high performance valve is in operation throughout a wide range of industries.

In action, the Schenck Process *ProDV*® Spheri Valve is a pressure tight compressed air operated valve, capable of returning over one million maintenance-free cycles, even in abrasive, hazardous or toxic applications. The fast-closing cut-off valve incorporates a unique inflatable sealing mechanism. This provides the pressure tight seal, against the dome surface when in the closed position – ensuring reliable, instant control and efficient performance.

As the first *ProDV*® Spheri Valve was launched to the market, its success and reputation has evolved it into becoming a critical part of an overall production process. Consequently, over time, other manufacturers have created adaptations of the original Spheri Valve, as value-engineered, non-commodity alternatives. Thereby, potentially impacting quality output and performance, which is why Schenck Process is very proud of the long-standing integrity of the ProDV®.

As the original Spheri Valve, the ProDV® features include:
  • The original and most reliant Spheri Valve
  • Cuts through moving or static material
  • Full bore material flow
  • Only a quarter turn from fully closed to fully open
  • Air tight seal, when closed
  • Dependable, fast closing performance
  • Simple maintenance, long-life performance
  • Designs can be provided for pressures up to 35 bar. 10 bar as standard
  • Can handle material temperatures up to 480 ºC
  • Handles abrasive, toxic, hazardous, friable and cohesive products with ease
  • No moving wear parts
Typical materials handled:
  • Detergents
  • Minerals
  • Ores
  • Chemicals
  • Ash
  • Granules
  • Powders

The Schenck Process ProDV® is ATEX Compliant.

Totally unrestricted full bore material flow is assured through the unique design of the ProDV® Spheri Valve dome assembly. A mere quarter turn is sufficient to move from the fully closed to the fully open position. This action positions the dome completely clear of the material flow path.

From Fine Abrasive Powders to cohesive Materials user options extend to the choice of dome, both in terms of raw material and any surface coatings required.

The dome is usually produced from Cast Iron, S G Iron or Stainless Steel, but other materials and designs will be considered by application.

From Foodstuffs to High Temperature Ash a range of inflatable seals are available, depending upon the application. The choice includes a white food grade seal as well as those specially formulated for high temperatures or other hostile applications. All Spheri Valves are capable of handling fine grain materials and hard abrasive products.

Vane Actuator Models can cut through static columns of material up to 2 mm particle size. They can also cut through moving columns of powders, pastes and granular products similar to coal above 2 mm. Cylinder Actuator models have the added capability of being able to cut through static columns of material above 2 mm.

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