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コントロールユニット Flo-Tite SV SeriesのPDF インストレーション、オペレーション、メンテナンスマニュアルをオンラインで閲覧またはダウンロードできます。Flo-Tite SV Series 5 ページ。 Solenoid valves
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ELECTRICAL CONNECTION (CONTINUED):
• Flameproof coils (C4, C5)
Electrical connection is made with wiring box with M20-1.5 or 1/2" cable entry, two points terminal strip
for electric pins + ground pins and outside ground pins is available (see fig.).
• Other explosion proof coils
See particular data sheet delivered with these coils.
MAINTENANCE:
CAUTION -
Prior to any maintenance work, switch off power supply, depressurize and vent the valve to
prevent the risk of personal injury or damage equipment.
Preventive Maintenance
Operate the valve at least once a month to check its function.
Avoid obstruction of exhaust port when it is not connected or protect it with a cap.
Cleaning
Maintenance of the valve depends on the operating conditions. They must be cleaned at regular intervals.
Cleaning must be done when a slowing down of the cycle, a leakage or an abnormal noise is noticed. The
components must be checked for excessive wear. Cleaning must be done with suitable solvent.
Spare Parts
After a prolonged use, it may be necessary to replace the active components of the valve. A Spare Parts Kit
is available for each version of the spool valve. Contact the manufacturer or a representative.
Flameproof Joints
Repairs of the flameproof joints must be in compliance with the structural specifications provided by the
manufacturer. Repairs must not be made on the basis of values specified in tables 2 and 3 of EN.IEC
60079-1.
Troubleshooting
Valve fails to operate
(no switching noise)
Valve fails to return
(for mono-stable)
Valve switches but without effect
External leakage
DIMENSION AND INSTALLING:
CAUTION -
Prior to installing the solenoid valve, depressurize the pipes and clean them internally to
avoid particles entering the system (tape sealant, thread compound). The valve may be mounted on the
Namur interface of the pneumatic actuator in usage of Namur interface plates depending on the design of
the spool valve.
- Check the electrical supply complies with values mentioned on the
nameplate or coil.
- Check coil for shorts or damage
- Check that mobile parts (spool, pilot plunger) are not blocked by
foreign particles
- Check to see the Namur interface plate is mounted incorrectly
-Check if the return spring is broken
-Check if the pilot exhaust port is blocked
-Verify connectors and tightening of the valve on its interface plate
-Verify if the pilot plunger is broken
-Verify connectors and tightening of the valve on its interface plate
-Verify the tightening of the pilot
22-22 IOM-SV /SV-2022
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