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５．Nominal Size Selection Method
５．１ Nominal Size Selection Chart
< For Water >
Nominal Size
(A)
ΔP：Differential Press. （MPa）
Fig.6
Example of Selection
When the inlet pressure (P
) is 0.5 MPa , the reduced pressure (P
) is 0.3 MPa and
1
2
3
the flow rate is 7m
/h, for instance , the size of the pressure reducing valve is
selected as follows. Find the intersection point(A) of the differential pressure
3
of 0.2 MPa with the flow rate of 7 m
/h, the point(A) is between line of size 25A
and 32A.
Choose larger size 32A for application.
-5-
■EPDT-096b■
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