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■Piping
•Never mount the product upside down.
•The straight piping length shall be 8 cm or longer.
Otherwise, if a straight section of piping is not installed, the accuracy varies by approximately ±2%F.S.
Refer to the straight inlet piping length and accuracy graph (page 98).
•Avoid sudden changes in the piping size on the IN side of the product.
•Do not release the OUT side piping port of the product directly to the atmosphere without the piping
connected.
If the product is used with the piping port released to atmosphere, the accuracy may vary.
Piping for the metal body
•Tighten to the specified torque. Refer to the table below for the required torque values.
•If the tightening torque is exceeded, the product can be broken.
If the tightening torque is insufficient, the fitting may become loose.
•Avoid any sealing tape getting inside the flow path.
•Ensure there is no leakage after piping.
•When mounting the fitting, a spanner should be used on the metal body of the fitting only.
Holding other parts of the product with a spanner may damage the product.
Specifically, make sure that the spanner does not damage the connector.
Nominal thread size
Rc1/2, NPT1/2、Rc3/4, NPT3/4
Piping for the One-touch fitting
•For the one-touch fitting, use tubing with a tube inside diameter of 9 mm or more.
Accuracy can vary approximately ±2%F.S. when such tubing is not used.
Required torque
Piping port size
•
28 to 30 N
m
-20-
Width across flats of attachment
1/2
30 mm
3/4
35 mm
No.PF※※-OMZ0002
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