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DESPONIA
®
, DESPONIA
®
plus -
Operation Installation and Maintenance Manual
9. Troubleshooting
Fault
Action
Leak at the
piping flange
connection of the
valve
1.
Tighten the flange bolts. Please follow the recommendations of the bolt’s supplier
being used.
2.
If the medium leaks even after tightening the bolts: remove the valve from the pipe
and observe the instructions mentioned in paragraph 7 of this manual.
3.
Ensure that the pipe flanges are aligned and the flange surface is smooth and clean.
4.
If still the leaking persists, check for damages in the liner. Order replacement parts
from InterApp.
Leaking from the
shaft of the valve
1.
Repair needed. Repair shaft sealing system. Remove the valve from the pipe and
observe the instructions mentioned in paragraph 7 of this manual
2.
Order replacement parts from InterApp and contact us for further instructions.
The valve does
not open or close
1.
If the valve carries an actuator, please check if the supply pressure is high enough
and the corresponding documentation of the actuator.
2. If the valve is manually operated, please check for the following possibilities:
•
If foreign media is present → Please flush the piping.
•
Operating pressure to high → Operate the valve with its corresponding allowable
pressure.
3. If still the problem persists, please check for damages on the valve. Remove the valve
from the pipe and observe the instructions mentioned in paragraph 7 of this manual.
4. Order replacement parts from InterApp and contact us for further instructions.
Leakage between
disc and liner
1.
Please check that the valves have been correctly installed. Follow the instructions on
paragraph 6.
2.
If the valve is correctly installed, and the leakage still occurs, disc/liner might be
damaged. Contact InterApp for spare parts and further instructions.
Other
malfunctions
1.
If the valve is damaged, please contact InterApp for further instructions and spare
parts ordering.
10. Further Information
Technical datasheets, drawings, other documents and further advice can be obtained from:
+34 916 584 134
Additional further information can be obtained from:
www.interapp.net
InterApp Valcom S.A.
Calle Almenara, s/n.
Carretera Nacional A-1, KM 31.1 (Salida 30),
(Polígono Industrial Sur)
28750 San Agustín del Guadalix, Madrid, Spain