Adler SpA
Valvole a sfera –- V.le Borletti , 14 - 20010 S. Stefano Ticino (MI) - ITALY
Tel.
+39 - 0297484211 –
Fax
. +39 - 0297271698
- Web Site
: www.adlerspa.com -
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TROUBLE SHOOTING
PROBLEM
CAUSE
- Internal medium
leakage
- Ball valve working conditions guaranteed by the manufacturer, have not been respected.
- Ball valve has been damaged by chemical corrosion due to the incompatibility occurred
between construction materials and medium.
- Damaging of seats & seals or ball surface due to foreign particles (ground, dust, etc...).
- Internal seats & seals are wear out: it’s necessary to recondition the ball valve .
- External medium
leakage
- Ball valve working conditions guaranteed by the manufacturer, have not been respected.
- Ball valve has been damaged by chemical corrosion due to the incompatibility occurred
between construction materials and medium.
- Presence of contaminating substances into the medium.
- Stem and closure seals are wear out missing a periodic recondition.
- Union body/ end screws of the ball valve work loose or are stretched due to a wrong
installation of the ball valve between flanges of pipe-line (Ex. Not in axis, bending) for the
lack of an expansion-reproaching device or the presence of heavy vibrations on the pipe-
line.
- The ball valve has an
excessive torque or the
ball is locked
- Ball valve working conditions guaranteed by the manufacturer, have not been respected.
- Possible changing state of the medium inside the ball valve.
- Possible particles precipitation on external ball surface that causes a mechanical
interference during the rotation of the ball.
DISPOSAL (OF VALVES)
The ball valves to be discarded must be removed from the pipe-line as follows:
•
Turn the lever (Ref. 15) to 45° so the ball is opened (or closed) at 50%;
•
Clear up the pipe-line on which the ball valve is mounted ;
•
Turn the lever opening the ball at 100%;
•
If possible wash the pipe-line;
•
During this operations take the necessary precautions compared to the degree of danger of the medium: wear
always appropriate clothes & shoes, anti-acid rubber gloves, glasses, powder/ gas mask.
•
The ball valve dismounted from the pipe-line must be washed accurately. If this procedure is
not
executed the
medium into the ball valve may be dangerous for people and cause ambient pollution.
After having washed the ball valve it is necessary to make the separation between Re-cycling components (metals) and
components to be treated as “special wastes” (gaskets in P.T.F.E., Viton, Grafoil etc ...). This operation is
essential
.
To dispose of the ball valve without observing this procedure will cause serious ambient pollution.
WARNING
: Adler S.p.A. cannot be held responsible for disposal executed without the observance of the norm.
