Sterling 882.00379.00 Manuel D’Utilisation
Conveying System Mechanical Components Chapter 2: Functional Description
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Blowback Pumps
SPDB Series Models: SPDB 25, SPDB 30
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Compressed air-operated blowback and vacuum valves with high-
vacuum relief.
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Mechanical high-vacuum relief valve.
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Support base.
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Positive displacement blower.
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Three (3) -phase high efficiency TEFC electric motor.
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25 or 30 horsepower (18.75 or 22.5 kW)
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Standard 230-460/3/60. 380-415/3/50. 575/3/60 is optional.
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Adjustable motor base.
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Vacuum gauge.
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Vacuum switch for high vacuum protection.
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Junction box with motor starter, including overload protection.
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Discharge silencer.
Options
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Fused disconnect in the junction box.
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Distributed I/O capability.
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Sound enclosure.
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Efficiency motors available.
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Re-sheave for elevation.
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24VDC or 120VAC controls.