Warranty Conditions - Pratissoli S455 Bedienungsanleitung

4- WARNINGS
4.1- The installer must provide the ultimate consumer with
the proper instructions for the correct use of the system the
valve will be used in connection with.
4.2- The fittings used to connect the valve to the system
must be suited to the valve performance features.
4.3- Use soft and filtered water only. In case of salt water
and/or of water containing solid particles of a size
exceeding 20µm, 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
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- 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.
4.6- IMPORTANT: The discharge port must
be kept clear, i.e. with no narrowing or
throttling, so that when the valve is open, the
water can flow out of the system without
generating outlet pressure.
4.7- In order to optimize the pump-valve coupling, it is
necessary to keep the valve operation range, as a
function of the pump pressure and flow rate, within a
maximum power of 140 kW (190 HP). As shown in the
chart, this means using pumps producing a flow rate of
approx. 180 l/min. for maximum working pressures of
45 MPa (450 bar - 6525 psi), and generating a pressure
of approx. 16 MPa (160 bar-2320 psi) for maximum flow
rates of 500 l/min.
4.8- Should the relief valve open, turn off the system and
find out what is the cause of the pressure increase.
4.9- Warning: if the valve is used at a low temperature
involving the risk of frost, make sure that there is no ice
formation inside and/or that the valve is not blocked before
using it.
wear; furthermore, this
WARNING: Do not use the valve in the systems covered
by Directive 97/23/CE (PED) - Cathegories I - II - III - IV
5- MAINTENANCE
5.1- Any maintenance and/or repair must be carried out by
Interpump Group only.
5.2- We suggest you check, at least every 2
years or after reaching 500 working hours of
the system, that the valve opens correctly in
might
order to verify the correspondence with the
setting pressure.
5.3- 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 disposal
INTERPUMP GROUP Authorized Service Centre.
IMPORTANT: 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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