SMC Networks PF3A703H-L Operation Manual page 96

●IN side straight pipe length and accuracy (reference value)
•Do not connect equipment or piping which may generate a fluctuation in the flow or drift at the IN side of
the product.
When installing the regulator at the IN side of the product, make sure that hunting is not generated.
•The piping on the IN side must have a straight section of piping whose length is 8 times the piping I.D. or
more.
If a straight section of piping is not installed, the accuracy varies by approximately ±3% or more.
: "Straight section" means a part of the piping without any bends or rapid changes in the cross sectional area.
•PF3A703H (For 3000 L/min)
•PF3A712H (For 12000 L/min)
•PF3A706H (For 6000 L/min)
-95-
No.PF※※-OMX0002