PLD Calculator

Use the handy calculator below to show how to apply our PLD engine to your application. It takes just minutes to complete. Note: If you experience any sort of problems please contact Donna Penter immediately. Donna can be reached at 513-719-2320 or email her at dpenter@clarkefire.com

Note:  Calculations are immediate, allow screen to refresh between selections

PLD CALCULATOR RESULTS

Date:
Input By:

INPUT DATA:

Application	Project Name:
	Project Number:
	Project Location:

System Info	Sprinkler System Maximum Working Pressure (psi):
	Pump Style:
	PLD Set Point:
	System Design Minimum Static Suction Pressure (psi):
	System Design Maximum Static Suction Pressure (psi):

Pump Info	Pump Manufacturer:
	Pump Model/Size/Type:
	Rated Flow (GPM):
	Rated Pressure (psi):
	Rated RPM:
	Shutoff Pressure (psi):
	Churn HP:
	Max HP:

Engine Info	Engine Model:
	Engine Rated HP:
	Engine Rated RPM:
	Right Angle Gear Loss (%):
	Right Angle Gear Output HP:

OUTPUT DATA:

Engine Info	Anticipated Z Factor:
	Maximum Trimming Capability (psi):

System Info
	Max system pressure without PLD (psi):
	Max system pressure with PLD (psi):
	Minimum Acceptable Reduced Engine Speed (RPM):
	Result:

System Info
	Max system pressure without PLD (psi):
	Max system pressure with PLD (psi):
	Minimum Acceptable Reduced Engine Speed (RPM):
	Result:

Clarke Log Number

Notes

1) A PLD equipped engine will run at various speeds between its Rated Speed and the Minimum Acceptable Reduced Speeds shown above. Any Mechanical Equipment and / or Structural natural frequencies that fall within this speed range should be avoided. 2) The Clarke Log Number must be referenced (or a copy of this Printout must be furnished) with any purchase order to Clarke FPPG for a Clarke PLD equipped engine model. 3) PLD Calculator does not account for altitude and ambient temperature de-rates. Run Clarke's Engine Selection Program first before entering engine model into PLD Calculator.