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The Clyde Bergemann Delta Ducon Spheri Valve
is a fast-closing, bulk-materials cut-off
valve based on a dome assembly design. The
valve features simple, but robust
construction allowing reliable, unrestricted
full-bore material flow that minimizes the
possibility of material build-up within the
valve body. |
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The Spheri Valve design incorporates an
inflatable seal, which automatically
deflates during opening and closing,
inflating only when the dome is fully closed
to eliminate unnecessary wear. The valves
are capable of handling fine-grained
materials and hard, abrasive products. Vane
actuator models can cut through static
columns of material up to ⅛-in. in particle
size, and through moving columns of powders,
pastes and granular products similar to
coal, above ⅛-in. Cylinder actuator models
have the added capability of cutting through
static columns of material over ⅛-in. in
particle size. Spheri Valves can handle
pressures up to 435 psi and material
temperatures from -4°F to 900°F, lasting up
to 1 million cycles between major overhauls
in many applications. |
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The operating efficiency of Clyde Bergemann Delta Ducon Dense Phase pneumatic conveying systems relies upon the unique and patented Spheri
Valve, currently installed in over 40,000 applications worldwide. Simple in design and low in maintenance, this high performance valve is used throughout the Power Industry.
In action the CBDD Spheri Valve is a
pressure tight compressed air operated
valve, capable of returning over one million
maintenance free cycles even in abrasive
applications. The fast closing cutoff valve
incorporates a unique inflatable sealing
mechanism; this provides a pressure tight
seal against the dome surface when in the
closed position.
Valve sizes from 2 inches to 20 inches are
available, as are several end connection
configurations. Water-cooled options are
offered for applications involving
temperatures in excess of 400°F, as are
special features such as a solenoid valve
and timer and a quick-exhaust valve.
Available in cast iron, SG (ductile) iron, stainless
or carbon steel with four surface coatings,
the Spheri Valve is suitable for handling a
wide range of materials from fine and
abrasive to sticky and cohesive, including
detergents, ores and ash. |
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Components
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