Interpump Group HM Mode D'emploi page 8

4- WARNINGS
4.1- The installation and the pressure setting must be made
by qualified staff only, who must have the required skills to
handle high pressure systems and be informed of the
operating and safety
document.
4.2- The installer must provide the ultimate consumer with
the proper instructions for the correct use of the system the
valve is used in connection with.
4.3- Use soft and filtered water only. In case of salt water
and/or of water containing solid particles of a size
exceeding 360µm, the internal components of the valve will
be subject to quick
compromise the correct functioning of the valve. Addition
agents can be used in the water, provided that they are
delicate, biodegradable and always complying with the
Regulations in force in the Country where the valve is used.
4.4- In the systems for hot water production, the
temperature of the liquid that comes into contact
with the valve must always be lower than the
value stated in this instruction manual and/or
indicated on the valve itself. Avoid the
formation of steam or overheated water.
IMPORTANT: When the temperature of the
liquid is close to the maximum value, the outside
temperature of the valve body is only slightly
inferior. Therefore, take care in case of contact
with the hot surfaces.
4.5- After use and/or before performing any operation on
the system or on the valve, release the pressure by opening
the gun or the control device for a few seconds. The jet
created by the residual pressure must be directed
downwards in order to avoid damages or dangers.
4.6- For safety reasons, it is advisable to equip the high
pressure feeding line of the system also with a relief or
safety valve duly adjusted.
4.7- To connect the valve to the system it is preferable to
use flexible hoses fitted in a way that they do not form 90°
elbows, throttlings or siphons which could include harmful
air bubbles. The inside diameters of the hoses and fittings
must be equal to the correspondent inside diameters of the
inlet, by-pass and outlet threads of the valve. Moreover, it is
necessary to correctly choose the type of hose depending
on the rated pressure and flow-rate; the hoses must be
used within their operation limits as stated by the
manufacturer and indicated on the hoses themselves.
4.8- Tighten the fittings used on the G3/8" threads of the
valve (torque wrench setting
ensure the seal, fit a metal washer with a rubber ring
between the fittings, or use a proper sealant on the thread.
4.9- Always connect the valve by-pass fitting to a hose, in
order to avoid the excessive noise caused by the water
outflow through the by-pass without hose.
4.10- Before operating the system, it is advisable to start it
for a preliminary test run in order to check that the system is
properly installed.
WARNING: Do not use the valve in the systems covered
by Directive 97/23/CE (PED) - Cathegories I - II - III - IV
instructions contained
wear; furthermore, this
45Nm ±5%). In order to
5- MAINTENANCE
5.1- Maintenance and repair must be carried out by
qualified and authorized staff only. Before any operation,
make sure that the valve and the system are shut down and
in this
made unusable.
5.2- A correct maintenance helps extend the working life
and grants a better performance of the valve.
5.3- From time to time, it is necessary to check that the
valve is clean outside, and that there is no sign of leakage
and/or malfunctioning. If necessary, replace the involved
parts. In case of doubts, contact the after-sales service of
Interpump Group.
might
5.4- Replace the valve parts with original spare parts
only.
IMPORTANT: After maintenance, make sure that
the valve is re-assembled correctly and that the
initial conditions are restored. Comply with the
torque wrench setting values and adjust the
pressure again as described above.
5.5- The valve is entirely made of non-toxic and safe
materials; however, in case of disposal, we suggest you do
not disperse it in the environment but take it to an
authorized
INTERPUMP GROUP Authorized Service Centre.
The valve shall not be tampered with for any
reason and/or used for any purpose other than
the use it has been designed for. In case of
tampering, the manufacturer disclaims all
responsibility as to the valve functioning and
safety.
6- WARRANTY CONDITIONS
6.1- The period and conditions of warranty are specified in
the purchase contract.
6.2- Warranty is voided in case the valve is used for
improper purposes, used at higher performances than the
rated ones, repaired with non-original spare parts or if it
turns out to be damaged due to the non-compliance with
the operating instructions or to unauthorized tampering.
Copyright
The content of these operating instructions is property of Interpump
Group.
The instructions contain technical descriptions and illustrations that
cannot be copied and/or reproduced, entirely or in part, nor distributed to
third parties in any form and without in any case authorized written
consent of the owner.
Offenders will be prosecuted according to the laws in force and proper
legal actions will be instituted against them.
The information contained in this document may be modified without notice.
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disposal centre or contact the nearest