IOM - BALL CHECK VALVES, UNIWAT® 3240/3141
©COMEV
AL
V
A
L
VE SYSTEMS
T
e
chnical Dept. Ref. IOM-BALL
CHECK V
A
L
VES, UNIW
A
T® 3240/3141 - Ed.16/07
Comeval V
alve Systems reserves the right to alter any technical data contained in this Manual without prior notice. Regularly u
pdated 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 modi
¿
cation on the product shall be noti
¿
ed 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 de
¿
ne 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).
- The manufacturer reserves the right to make technical modi
¿
cations at any time.
2. NOTES ON POSSIBLE DANGERS
2.1 Signifi cance 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 speci
¿
cally 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.
- Valves are protected with epoxy paint protection. In order to prevent damage, corrosion or rust on the surface, avoid ex-
treme temperatures (keep at 5ºC to 50ºC), avoid high environmental humidity or corrosive environment. Keep the valves
away from direct sunlight, dust,
À
ames 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
Ball Check Valves are devices for preventing the reverse of
À
ow in a piping system.
Valve diagram with parts can be seen at the last page of the Manual.
4.2 Area of Application
With a simple design, they are an effective solution to handle clean and waste water, with full seat area tightness, being
one of the preferred choices when sediments are present.
4.3 Operating principles
The
À
uid pushes a ball from the valve inlet allowing the
À
ow to pass. When no positive
À
ow, the ball falls down by gravity
thus blocking the medium at the valve inlet.
4.4 Technical data - remarks
For data such as main features, duties/limits of use, dimensions, weights, etc. refer also to Data Sheet.
ATTENTION!
- Protect against external force (impacts, vibrations, etc.).
- Allow only skilled personnel; suitable handling and lifting equipment must be used.
- Always use suitable protection equipment, and minimize the use of human body force at any step to avoid
injuries. See Data Sheet for weights or consult manufacturer.
- There is a risk of body member (hand, fi nger, arm…) crushed against any other solid element (wall, pipe,
fl oor, etc.) during handling. Take this into account and handle with care.
- There is a crushing hazard between the ball and the body. Ensure the ball is in rest position in case of hands
are introduced inside the valve.
- Check correct position of nameplate and handle with care to avoid personnel cuttings.
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