IOM - WAFER SWING CHECK VALVES, UNIWAT® CV
©COMEV
AL
V
AL
VE SYSTEMS
Technical Dept. Ref. IOM - W
AFER SWING CHECK V
AL
VES, UNIW
AT® CV - Ed.20/06
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 using the product, being binding for preservation, storage, handling, trans
-
port, installation, commissioning, operation, maintenance, repair and disposal, and must be thoroughly observed at any
step.
- Please contact the supplier or the manufacturer in case of issues which cannot be solved by reference to this Manual.
- Any deviation from this Manual and sound engineering practice or modification on the product shall be notified to ma
-
nufacturer for advice or approval.
- In addition, regional safety requirements must be always applied and observed at any step.
- All the work related to the product must be carried out, supervised and inspected by specialist personnel. It is the
owner’s responsibility to define areas of responsibility and competence and to ensure the proper monitoring.
- This Manual is in accordance with Directive 2014/68/EU on Pressure Equipment (PED).
- For ATEX applications, please refer to ATEX Specific instructions.
- The manufacturer reserves the right to make technical modifications at any time.
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.
The rest of information not specifically emphasized in this Manual, along with Data Sheet and product marking, must also
be observed and complied with for safely using the product.
3. PRESERVATION, STORAGE, HANDLING AND TRANSPORT
- Use proper packing for transportation.
- Keep storage protection before installation.
- 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.
Protect rubbers also against UV light. 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 / Operating principles
Wafer Swing Check Valves are devices for preventing the reverse of flow in a piping system, by means of its articulated
disc, that opens with positive flow and closes against a pressure reversal. Valve diagram with parts can be seen at the
last page of the Manual.
4.2 Area of Application
They are a light, compact and economic anti-return device option for different applications such as heating systems,
water treatment, pumping, etc.
4.3 Technical data - remarks
For data such as main features, duties/limits of use, dimensions, weights, etc. refer also to Data Sheet.
Page 2
ATTENTION!
- Protect against external force (impacts, vibrations, etc.).
- Allow only skilled personnel; suitable handling and lifting equipment must be used. See Data Sheet for weights or
consult manufacturer.
- Always use suitable protection equipment, and minimize the use of human body force at any step to avoid injuries.
- There is a risk of body member (hand, finger, arm…) crushed against any other solid element (wall, pipe, floor,
etc.) during handling. Take this into account and handle with care.
- There is a crushing hazard between the disc and the seat. Ensure the disc is in rest position in case a hand is
introduced inside the valve.
