Installation, Operation and Maintenance Manual
󲷇H-A003-E-15󲷈 Ball Valve Type 2121α Pneumatic Actuated Type AA 17
(14) Air piping procedure
<1>For a standard type and an attached speed controller type
- Do not remove a dust-proof cap provided to piping port before piping work starts.
- Avoid excessive tightening. (The threaded area of a pipe can be damaged.)
- Do not apply a sealant excessively lest it fall off in the pipeline when an actuator is piped.
- Check the connection locations, air pipe sizes, and screw types with the approved drawings and other
documents for the product. Then lay the air piping.
- The operating fluid must be clean air filtered through a pertinent air filter.
- If the actuator is used in an environment below 5 temperature, its operating fluid must be free from the
water and moisture contained in it because of possible problems due to the freeze.
- Steel pipes must always be of the plated.
- Before installing an actuator in pipeline, flash the inside of pipeline completely.
- Threaded area of a pipe must be free from the sharp edges and burr.
Spanner wrench Seal tape
Steel pipe or tube for piping Joint for steel pipe or tube
Procedure
1) Wind a seal tape onto the male screw of the joint with a
blank about 3mm (about 2 threads) left at the end.
2) Screw the joint in the piping female screw of the
actuator by hand to the full.
3) Screw the joint one turn with a spanner wrench.
* Avoid excessive tightening.
(The valve can be damaged.)
4) Mount a steel pipe or a tube.
Necessary items
Caution
Air supply Shut
Air supply Open
Double Action Single Action
Air supply Shut
Air supply Open
Double Action Single Action
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