CALCULATION
OF PRESSURE LOSS AND MOMENTARY WATER PRESSURE
Note: Pressure loss will be calculated
through HAZEN - WILLIAMS formula.
TYPE
OF PIPE =
OUTER
DIAMETER OF PIPE =
mm
*1
NOMINAL
PRESSURE (PN) =
bar
*2
FLOW
OF WATER (Q) =
lt/sec
*3
OPERATIONAL
PRESSURE (Pressure at the end of the pump)
=
mSS
*4
LENGTH
OF PIPE (Length of line) =
m
*5
CONSTANTS
WALL
THICKNESS (e) =
mm
INNER
DIAMETER (d) =
mm
TERMS TO BE CALCULATED
SPEED
OF WATER PASSING THROUGH THE PIPE =
m/sn
*6
PRESSURE
LOSS IN 1M. OF PIPE ( J ) =
m/sn
PRESSURE
LOSS IN ENTIRE PIPE=
m/m
=
bar
MOMENTARY
WATER PRESSURE =
mSS
=
bar
SUPPRESSION
STATE (Hmax) =
mSS
=
bar
*7
DEPRESSION
STATE (Hmin)
mSS
=
bar
*8
*1 (Interval for Outer Diameters = From 16
mm. to 1000 mm.) *2 (PRESSURE CLASSES = 3,2 / 4 / 6 / 10 /
16 / 20 / 25) *3 (The -V- water speed should be checked
for being in the acceptable range. ) *4 (If a pump exist, the pressure at the
end of the pump should be written, otherwise it
can be entered after the calculation of the pump.
) *5 (If this value is left empty, only the
pressure loss in entire pipe can not be calculated.) *6 (This value should be in the range 1,2
- 2,5 m/sec for Agricultural Irrigation and Potable
Water Systems.) *7 (The result must be less than the value
for the pressure class of the pipe. ) *8 (The result must be positive. )
