Harsco Industrial SC-2000 Installation & Owner's Manual page 4

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
Maximum Flow
Minimum Flow
Minimum Flow
• The table below summarizes the minimum and maximum flow restrictions for the SC-4000:
Flow Condition
Maximum Flow
Minimum Flow
Minimum Flow
Boiler Operation
High Fire
Ignition
Low Fire
Boiler Operation
High Fire
Ignition
Low Fire
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
Flow Rate
285 GPM
72 GPM
57 GPM
Flow Rate
384 GPM
98 GPM
76 GPM
4
Ga a s s F F i i r r e e d d B B o o i i l l e e r r
Approximate ∆T
20°F
20°F
20°F
Approximate ∆T
20°F
20°F
20°F