Installation, Operation and Maintenance Manual
󲷇H-A003-E-15󲷈 Ball Valve Type 2121α Pneumatic Actuated Type AA 12
Threaded End
(Material : PVC, C- PVC, PP, PVDF)
- Avoid excessive tightening. (The valve can be damaged.)
- Make sure that the threaded connections are plastic x plastic. (Metallic thread can cause damage.)
- Wrap the threaded joints on our plastic piping with sealing tape. Using a liquid sealing agent or liquid
gasket may cause stress cracks (Environmental Stress Cracking). Our product warranty shall not
apply in case of said use, even when said use is unavoidable.
Sealing tape Strap wrench Spanner wrench
1) Wind a sealing tape around the external thread of joint, leaving the
end (about 3mm) free.
2) Loosen the union nut [5] with a strap wrench.
3) Remove the union nut [5] and the end connector [4d].
4) Tighten the external thread of the joint and the end connector [4d] hardly with hand.
5) Using a spanner wrench, screw in the end connector [4d] by turning 180°-360°carefully without damaging it.
6) Make sure that the O-ring (A) [8] is mounted.
7) Set the end connector [4d] and union nut [5] directly on the body without allowing the O-ring (A) [8] to
come off.
8) Tighten union nuts [5] hardly with hand.
9) Using a strap wrench tighten union nuts uniformly on each side approx 90°-180°turns, 1/4 to 1/2 turns.
Necessary items
Sealing Tape
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