IOM - SLEEVED PLUG VALVES, UNIFLOW PP
©COMEV
AL
V
AL
VE SYSTEMS
Technical Dept. Ref. IOM - SLEEVED PLUG V
AL
VES, UNIFLOW PP
- Ed.16/05
Comeval V
alve Systems reserves the right to alter any technical data contained in this Manual without prior notice. Regularly updated data on www
.comeval.es
1.–GENERAL INFORMATION ON THE MANUAL
- This Manual provides information on safely mounting and maintaining the product. Please contact the supplier or the
manufacturer in case of problems which cannot be solved by reference to this Maual.
- This Manual is binding for transport, storage, installation, commissioning, operation, maintenance or repair.
- Manual must be read before commissioning the valve.
- The notes and warnings must be observed and complied with.
- Handling and all other work must be carried out by specialist personnel, or all the activities must be supervised and
inspected.
- It is the owner’s responsibility to define areas of responsibility and competence and to monitor the personnel.
- In addition, current regional safety requirements must be always applied and observed, also when decommisioning,
maintaining and repairing the valves.
- Any deviation from this Manual or from usual installation guidelines should be notified to us for recommendation and
approval.
- The manufacturer reserves the right to make technical modifications at any time.
- This Manual complies with the requirements of EU Directives.
2. – NOTES ON POSSIBLE DANGERS
2.1 Significance of symbols
ATTENTION!
. . . Warning of general danger
2.2 Explanatory notes on safety information
In this Manual dangers, risks and items of safety information are highlighted to attract special attention.
Information marked with the symbol above describes practices, which if fail to comply with, can result in serious injury or
danger of death for users or third parties or in material damage to the system or the environment. It is vital to comply with
these practices and to monitor compliance.
All other information not specifically emphasized, as well as technical data in Data Sheets and product marking, must
also be observed and complied with to the fullest extent in order to avoid faults which in turn can cause serious injury to
persons or damage to property.
3. – PRESERVATION, STORAGE AND TRANSPORT
- Use proper packing for transportation.
- Keep storage protection before installation.
- Keep the valves in full open (preferable) or full close position.
- In order to prevent damage, corrosion or rust on the surface, avoid extreme temperatures (keep at 5ºC to 50ºC), avoid
high environmental humidity or corrosive environment. Keep the valves away from direct sunlight, dust, flames or rain. Do
not pile up excessive weight. In case of severe bumping inspect the material for any damage and replace if necessary.
4. – DESCRIPTION
4.1 General Description
Plug Valves are rotary isolating valves featured by a tapered or conic perforated plug with fluid flowing through it. Sleeved
plug valves are fitted with a tapered plastic sleeve compressed between the valve body I.D and the plug O.D.
Valve diagram with parts can be seen at the last page of the Manual.
4.2 Area of Application
Sleeved plug valves are primarily used on On/Off duties being well featured by its flexible sealing and large sealing area
thus ensuring a full tightness in full quarter turn stroke. Operation of the valve in intermediate position to be avoided since
this would lead to increased wear.
4.3 Operating principles
The valves close by turning the handle 90º clockwise, with tightness achieved by friction of the plug to the sleeve. When
the handle is parallel to pipe the valve is open.
4.4 Technical data – remarks
For data such as main features, duties/limits of use, dimensions, weights, etc. refer to Data Sheet.
ATTENTION!
- Protect against external force (impacts, vibrations, etc.)
- Product parts such as levers, gears or actuators must not be used to take up external forces that they are
not designed for: e.g. do not use them as climbing aids, or as connecting points for lifting gear, etc.
- Allow only skilled personnel; suitable handling and lifting equipment must be used.
See data sheet for weights or consult manufacturer.
- Check correct position of nameplate and handle with care to avoid personnel cuttings.
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