Historically, the accepted method to convey ash was
in a high volume, low pressure airstream condition.
While effective at material movement, these high
velocities required a significant amount of energy
and created excessive wear on the system.
The alternative technology preferred by the power
industry is Dense Phase Conveying, which utilizes
much smaller volumes of air at higher pressures and
slower velocities. Doing so allows this system to
convey high volumes of material in a solid plug
condition, thereby reducing the wear on the system
and conserving energy.
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Dense Phase Ash Conveying Technology
utilizing the Clyde Bergemann Delta Ducon
Spheri Valve delivers exceptional
performance and reliability in the most
demanding environments.
These systems feature:
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High availability and long operating
life
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1,000,000+ cycles between seal
replacement
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Low maintenance
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Simple, proven design (over 40,000 in
operation)
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Full bore unobstructed material flow
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Cuts through moving or static material
columns
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Forms pressure tight seal when closed
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Pressures up to 430 PSI
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Wide range of valve sizes: 2” to 20”
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Temperatures up to 840ºF
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