Schwing SP 500 - Page 135

135
Appendix
SP 500 / 750-15 / 750-18 / 1000 / 1250 Operation Manual
To use the nomograph, begin at output required and
move clockwise until you encounter the lines that repre-
sent your job situation. Each time you meet the line that
applies, make a 90° turn until you come to a point on
the bottom of the upper left quadrant that shows pres-
sure required.
To illustrate the use of a nomograph, we will use a hy-
pothetical job situation with the following specications:
1. We will need an average output of 75 cubic yards
per hour, but we will be pumping only 75% of the
time. The rest of the time will be spent moving
hose, removing pipe lengths, waiting for concrete
trucks, and taking care of miscellaneous jobs. This
means that when we are actually pumping, we will
need an output rate of 75 ÷ 75 = 100 yd3/hr.
2. We will use 5-in.-diameter pipeline.
3. We will need the following pipeline lengths: Sepa-
rately laid pipeline:
• 40 ft of 5-in. rubber hose
• 150 ft of 5-in. horizontal steel pipe
Boom pipe, elbows, and deck system:
• 13 ft. of 5-in. rubber hose
• 144 ft. of 5-in. steel pipe (on the boom and pump
deck)
• 5.25 ft. of 6–to–5-in. reducer (on the pump)
• four 5-in. 45° elbows, radius 250 mm
• eleven 5-in. 90° elbows, radius 250 mm
• two 6-in. 90° elbows, radius 250 mm
4. We will specify a slump of 5-6 in. and use the 5-in.
line on the chart.
5. In addition, when we add the pressure for the
vertical run, we will have to add 1.1 times 70 ft =
77 PSI.
All of these criteria will be explained in detail as we go
through the individual quadrants.
100
2000
200
300
400
500
600
80010001200
1500180025003000
2"
2.5"
3"
4" 5" 6"
P in PSI
Q in yd
3
/hr.
Pipeline diameter in inches
Proportional value of pipeline in feet
For vertical placing,
add 1.105 PSI per foot
of level difference.
Slump of fresh concrete in inches
6" 5" 4.5"
4"
8701566
6003000 2800 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 400 200
200
180
160
140
120
100
80
60
40
20
67
116
Rodside
Pistonside
120/80 x 1600:200
132 KW
Pumpkit Model:
Power:
132 KW
(72600)
TK number does not apply to truck mounted units.
Curve shown is the Power Factor number (PF).
42 boom-small-no blocks-eps