41
Chapter 7. SPECIFICATIONS
*2
: "Normal" refers to the volumetric flow rate (m
3
/h) after converting to 0°C, 101.325 kPa
(1 atmosphere).
*3
: The measurement range is the flow rate range in which instantaneous flow rate display accu-
racy is stipulated.
*4
: Straight pipe longer than the length specified above may be required depending on the pipe
shape or other devices mounted on the piping. The length of downstream straight pipe sec-
tion is a standard value.
Straight pipe section (rough guidelines)
•
Same diameter pipe(diameters A and B and the same)
A
B
Upstream elbow
Downstream elbow
As per individual
As per individual
specifications
B
A
•
Different diameter pipe(diameter A is different from diameter B) D:inner dia.connecting pipe
Upstream side enlarged
(Different diameter socket)
Downstream side reduced
(Different diameter socket)
Downstream side enlarged
(Different diameter socket)
Upstream side reduced
(Different diameter socket)
Downstream side reduced
(reducing pipe is used)
Upstream side enlarged
(Enlarging pipe is used)
Downstream side enlarged
(Enlarging pipe is used)
Upstream side reduced
(Different diameter socket)
B
15D
A
B
5D
A
10D
B
A
B
5D
A
B
10D
A
B
A
5D
10D
B
A
B
5D
A
