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1.0 - GENERAL INFORMATION
This manual shows you how to safely install, operate and use the device.
The instructions for use ALWAYS need to be available in the facility where the device is installed.
ATTENTION: installation/wiring/maintenance need to be carried out by qualified staff (as explained
in section 1.3) using appropriate personal protective equipment (PPE).
For any information pertaining to installation/wiring/maintenance or in any case problems that cannot be resolved with the use
of the instructions, it is possible to contact the manufacturer from the address and phone numbers provided on the last page.
1.1 - DESCRIPTION
Automatic solenoid valve (it opens when under tension and closes without) suitable to detect fuel oil.
The MN28 series solenoid valve is conceived to be very reliable even in the hardest working conditions. It has a large section
of passage and so a low load loss.
Its construction is very good with a die-cast aluminium structure, Viton sealing parts and all parts in direct contact with fluid,
made of brass and stainless steel. The solenoid valve is open only when powered.
If compared to other membrane servo-controlled or apparently similar models, the MN28 solenoid valves can work non-stop
even in loop circuits with upstream and downstream pressure differential from 0 to 8 bar.
The opening and closing rapidity permits use of MADAS solenoid valves where a precise fluid dosage is needed.
1.2 - KEY OF SYMBOLS
DANGER: In the event
of inobservance, this may
cause damage to tangible
goods.
1.3 - QUALIFIED STAFF
These are people who:
• Are familiar with product installation, assembly, start-up and maintenance;
• Know the regulations in force in the region or country pertaining to installation and safety;
• Are trained in first aid.
1.4 - USING NON-ORIGINAL SPARE PARTS
• To perform maintenance or change parts (ex. coil, connector, etc.) ONLY manufacturer-recommended parts can be used.
Using different parts not only voids the product warranty, it could compromise correct device operation.
• The manufacturer is not liable for malfunctions caused by unauthorised tampering or use of non-original parts.
1.5 - IMPROPER USE
• The product must only be used for the purpose it was built for.
• It is not allowed to use different fluids than those expressly stated.
• The technical data set forth on the rating plate must not be exceeded whatsoever. The end user or installer is in charge of
implementing proper systems to protect the device, which prevent exceeding the maximum pressure indicated on the rating
plate.
• The manufacturer is not responsible for any damage caused by improper use of the device.
Madas Technical Manual - 8|8.1 - REV. 0 of 10
DANGER:
In
inobservance, this may cause damage
to tangible goods, to people and/or
pets.
9
Oct 2018
th
the
event
of
ATTENTION: Attention
is drawn to the technical
details
intended
for
qualified staff.
MN28
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