Sizing Condensate Units

Step 1 : Pump Flow Rate Sizing
Enter Load expressed as any of the following units in the drop-down list.	At 3 times evaporation or condensing rate	At 2 times evaporation or condensing rate
Boiler HP Sq. Feet EDR Lbs./Hour BTUs/Hour MBH Kilowatt (kW)	pump GPM	pump GPM
	#1	#2
One or both of the results is LESS than 0.5 pump GPM. We advise you contact your Shipco representative. One or both of the results is GREATER than 500 pump GPM. We advise you contact your Shipco representative.
Step 2 : Minimum Receiver Size
Calculated automatically from results in Step 1.	gallons	gallons
	#3	#3
Step 3 : Pump Discharge Pressure Sizing
1. Enter Vertical Lift. feet of head 2. Enter Back Pressure. psig 3. Enter loss of head due to discharge pipe friction. feet #4	Calculation includes a safety margin of +10 PSIG. pump discharge PSIG
Use Pipe Friction Calculator
Press "Reset All" to CLEAR ALL calculations and enter new values.

Notes

1. Condensate pumps are typically sized at three times normal condensing or evaporation rate. These guidelines are based upon design and operating experience.
2. Upon proper application, units can be sized at two times the condensing or evaporation rate.
3. Make sure the inlet height is lower or equal to existing height on gravity return systems—water does not run uphill!
4. If value of "0" entered, calculator assumes proper diameter for discharge pipe (velocity of 10 feet per second or less) and includes a safety margin of 10 PSIG. If value not known, use Pipe Friction Calculator to determine resistence of piping in feet of head.

Additional Information

If condensate return temperature is 200°F or above (at sea level) check available NPSH to avoid potential cavitation problems.

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