Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
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Hydronics/Water Flow (SC-3000 & SC-4000)
•
The chart below represents the pressure drop (Ft of Head) versus the water flow rate (GPM) for
the SONIC SC-3000 & SC-4000. This information is useful to help size an appropriate circulation
pump. Keep in mind this pressure drop represents the boiler only, additional consideration is
needed for any connected piping, valves, strainers, couplings, flanges, etc.
•
The table below summarizes the minimum and maximum flow restrictions for the SC-3000:
Flow Condition
Boiler Operation
Flow Rate
Approximate
∆
T
Maximum Flow
High Fire
285 GPM
20°F
Minimum Flow
Ignition
72 GPM
20°F
Minimum Flow
Low Fire
57 GPM
20°F
•
The table below summarizes the minimum and maximum flow restrictions for the SC-4000:
Flow Condition
Boiler Operation
Flow Rate
Approximate
∆
T
Maximum Flow
High Fire
384 GPM
20°F
Minimum Flow
Ignition
98 GPM
20°F
Minimum Flow
Low Fire
76 GPM
20°F
Summary of Contents for SC-2000
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