Calculators

FRICTION LOSS CALCULATOR

Enter values in all 14 text boxes, or use default value shown.

Applies to: Water 15ºC at Sea Level.

Note: Calculations are approximate & for guidance only.

INSTRUCTION PANEL
Hover over the text in the calculator to see context help in this area

This Calculator will work out the Total Dynamic Head & NPSH(a) of a system and assist in drawing system curves.

See context help for more info, including how to calculate systems with multiple operating branches of various diameters and lengths.

Click the HELP button for more help on how to use the calculator.

SELECT PIPE DATA above including the "ID" and "HWC" of common pipes and tubes to allow completion of the text boxes in the calculator. Values of "ID & HWC" should be rounded down not up.

CALCULATION RESULTS
Total Dynamic Head =	metres
NPSH (available) =	metres

Flow (L/sec):      Foot valve:

Suction Static (m):      Suction ID (mm):

Suction length (m):      Suction HWC:

Disch. static (m):      Disch. ID (mm):

Disch. Length (m):      Disch. HWC:

Gate valves:      N.R. valves:

90^o elbow:      Tee:

TRANSFER VALUES FROM TEXT BOXES BELOW TO TEXT BOXES ABOVE.

INSTRUCTIONS FOR CREATING SYSTEM CURVE

1. Copy the values from the boxes below into the boxes above.
2. Click on Plot It!

Function	« Put values (from 1st & 3rd box) into "Function" above.
Number of Points	(No transfer required)
Minimum x Value	(No transfer required)
Maximum x Value	« Put value into "Maximum x Value" above (recalculate for higher value)
NOTES RESULTS ARE APPROXIMATE ONLY The (bottom) "x" axis is flowrate. The (side) "y" axis is head. The head axis starts at the static head NOT ZERO! The 1st & 3rd boxes of Function must be copied to each side of (x^2)+ in the top Function box ((x^2)+ doesn't change). If the scale is hard to workout, try changing the Maximum x Value. High numbers will show a multiplier (ie: 3 x10³= 3000). TO PRINT: Press "print screen" key & paste into Paint or other graphics program, then print. This Calculator & Curve provided for guidance only! Please contact Sykes for accurate selection.