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2.4 Intended use
HALIOS
and HALIOS
Premium are for "OPEN - CLOSED"
TM
TM
operation only.
By virtue of its design, and its different material options, they
might be used for potable water or raw water.
Before installation, check the configuration of the material in
order to control the compatibility of the hydrant with the fluid
that is going to flow both inside and in the external environment.
If used with technically clean fluids (e.g. drinking water,
depending on allowable operating pressure) flow speeds up to 4
m/s are allowed in permanent conditions of use (see table 2 for
limits), when the wedge is in fully opened position.
In case of fire protection use, maximum flow rate should not
exceed 1.5 times the Kv-value for cavitation safety reason.
Temperature of the medium shall not exceed max. 50°C (see
table 3 for limits).
Maximum Temperature
Maximum Flow Velocity in
permanent conditions of use
Table 2: Maximum temperature and flow velocity
Installation conditions can be outdoors, buried in the ground, in
a valves' room.
All deviating operating instructions and deviating fields of
application are subject to the manufacturer's approval.
As we do not have any control or prior knowledge of the quality
and properties of the water, we recommend the installation of
our hydrant with enamel coating when the water tends to form
deposits or encrustations.
2.5 Unacceptable operation
Do not use the shut-off cone of the hydrant in an intermediate
position to restrict water flow. Continuous operation in a flow-
restricting position can cause cavitation and major wear of the
products that will lead to leakage and malfunctions. This type of
underground fire hydrants is suitable only for "OPEN-CLOSED"
operation.
Negative pressure levels (cavitation) are to be avoided at all costs.
Extending the operating elements, e.g. with levers or similar
devices is not allowed.
Do not exceed temperature limits for the flow media.
Do not exceed permisable operating pressure. The closed valve
may only be loaded up to the allowable operating pressure.
For the version with the cone fully encapsulated in EPDM, the
EPDM parts must not be allowed to come into contact with
any medium containing oil or grease, as EPDM swells in those
circumstances.
European Standard DIN EN1074-6
50°C
4 m/s (PFA16)
The technical data and performance may be modified
without prior notice depending on the technical advances.
Whatever the materials that constitute it, it is absolutely
forbidden to use our underground fire hydrants with gaseous
fluids such as propane, butane, natural gas or with hydrocarbon
fluids like petrol, diesel, etc.
WARNING
Refer to technical leaflet W331 from
DVGW for deployment, installation,
implementation, operation and
control.
2.6 Marking
The following information is cast into the body:
• Manufacturer name
• DN
• PN
• Cast material
• Installation depth RD
The following information is cast into the bonnet:
• Total number of turns for closing or opening
• DN
• PN
• European standard EN14339
The following information is shown on additional labels:
• Name of the range
• Product number
• Drilling type, if special or different than PN
• Approvals (if any)
• Date of manufacturing
In addition to standard marking and factory labels, each hydrant
is delivered with a corrosion resistant identity disc, located under
the operating square cap, in order to give easy acces to the main
characteristics of the products like type of shut-off, installation
depth, standards, etc, once it has been stored or installed. The
disc is yellow for single-shut off version, and blue for the double
shut-off version.
IOM_FIH210201_HALIOS STD-PREM_EN
P9/19
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