ATEX HYDROKINETIC ROTATING CLEANING HEADS
SAFETY NOTE
SN01
Rev. 00
Date 22/04/2020
Pag. 5 of 10
2.3
TERMS USED
Qualified/Specialised Technician: personnel who was trained for installation, adjustment, maintenance, repair. It is
required that the technician shall be trained and allowed to perform such tasks, and to have specific knowledge not
only of the tool and the risks stemming from its use, but also the possible risks of the appliance in question.
Temperature Class (T): it is the maximum superficial temperature of the appliance (taking into account also the safety
coefficient as reported in UNI CEI EN ISO 80079-36:2016. It also corresponds to the max. surface temperature of the
head.
3.
INSTRUCTIONS FOR USE
3.1
STORING, SHIPPING AND MOVING
The heads are supplied with adequate packaging. The unloading and moving of the tools shall be carried out by
trained personnel, who is also responsible for checking that the order and the freight match.
It is necessary to carefully move the head to avoid shock impacts, and therefore, possible deformations and cracks
which could successively determine leaking of the product contained through the attachment points of the head a/w
possible trigger source (sparks, adiabatic compression, etc.).
Localities of Warehouse storage, conservation, transport and movement of the heads must guarantee that they are
not subject to shock impacts, tumbles, deteriorment and other damaging which could compromise the function of the
head.
Any eventual damage must be immediately communicated to P.A. S.p.A. for assessment.
3.2
INSTALLATION
3.2.1
WARNING
Each installation or reinstallation must be performed by qualified personnel, duly trained and informed on the related
risks, even concerning the instructions of this document.
When using the utensils do not apply excessive force rotation on the connections in the presence of a potential
explosive atmosphere.
The use of utensils in zone 0 and 20 is not permitted. The use of utensils in zone 1/21 and 2/22 is allowed with
particular instructions under the directive UNI CEI EN ISO 80079-36:2016 which has to be known by the operator.
Installation errors can provoke deformation or structural collapse of the pipe connection, also a loss of fluid in the
ambient.
Installation errors can compromise the regular movement with effective possibility of sparking.
3.3
NOZZLE SELECTION
The nozzles, in numbers of 2 or 4 of high pressure washing type with straight jet, must be appropriate to the flow &
pressure in which they intend to operate (see nozzles chart) bearing in mind that the pressure spec. to consider in the
choice is the one achieved by subtracting from the pressure value in the pump, the value of the pressure loss
determined by the delivery line and head. This last value can be obtained from the diagram D3 of this manual. The
nozzles must be made of material compatible with the directive 2014/34/EU and category 1.
