![background image](http://html1.mh-extra.com/html/smc-networks/pb1313a/pb1313a_operation-manual_1301110016.webp)
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15
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3) Viscosity characteristics
With reference to the viscosity characteristic graph (shown below), discharge amount of
transported fluid with higher viscosity can be calculated.
●How to calculate the pilot air pressure and consumed air flow
< Example of required specifications >
-Discharge : 200mL/min
-Discharge pressure : 0.2MPa
-Viscosity : 15mPa
・
s
-Solenoid valve cycle : Calculate the pilot air pressure and consumed air flow at 5Hz
1
.
First, check the ratio of discharge amount to clean water from the graph above when the
viscosity is 15mPa
・
s.
From the graph it is approx. 40%.
2
.
Next, convert it to discharge rate of clean water.
40% of the discharge of clean water corresponds to 200mL/min. of required specification.
Therefore 200mL/min / 0.40 = approx. 500mL/min, meaning that 500mL/min. of
discharge is necessary for clean water.
3
.
According to the flow characteristic graph, mark the intersection of discharge pressure
0.2Mpa and discharge amount 500mL/min.
The intersection shows that the pilot air pressure is approx. 0.35MPa.
4
.
Based on the air consumption graph, mark the point of pilot air pressure of 0.35MPa.
From this point, air consumption is approx. 10.5L/min[ANR].
清水に対する
吐出量の比率(
%)
粘度(mPa・s)
R
atio
of
di
scha
rge
t
o
cl
e
an
w
ater
(
%)
Viscosity (mPa
・
s)
Summary of Contents for PB1313A
Page 19: ...18 10 Outer dimensions...