PA A42R-316-360, Instruction Book

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ATEX HYDROKINETIC ROTATING CLEANING HEADS
SAFETY NOTE
SN01 Rev. 00 Date 22/04/2020 Pag. 8 of 10
Electric currents and protection against cathode corrosion. Static electricity
Earth connect all the wires which could dangerously charge through certain connection points.
The installer is responsible for checking that there are no insulated metal parts.
The User must regularly check the effectiveness of the ground connection.
Adiabatic compression and shock waves
The process that can cause adiabatic compression or shock waves are not tolerated. Verify the normal function of the
wash fluid in the adduction systems.
Exothermic/Endothermic reactions, including self-ignition of powders
Wash fluids with endothermic characteristics or reactive with water and impurities are forbidden.
Excessive vibrations and stress
Stress derived from vibrations, especially transmitted by the tube connections and other connected apparatus are
forbidden; where such conditions cannot be guaranteed, appropriate measures must be taken to reduce to the
minimum such phenomena.
Back pressure
An elevated back pressure to the nozzles acts negatively on the head compromising the set calibration. The nozzles
must be exempt from back pressure: They must not be blocked and no flow from the nozzles towards the inside of the
head is permitted.
Ambient risks
Ambient conditions different than those specified can cause a danger source.
They can cause dangerous service conditions (with relation to the processed fluids) an abrupt movement, humidity
effects, ambient temperatures and pressure changes, chemical agents, corrosion.
The working process in the installations must be carried out in such a manner to be not determined by a dangerous
influence.
Refrain from the functioning of the head in case of evident irregularities. The rupture of some components provoke a
non hydrokinetic function of the head.
3.5.5 PPE (PERSONAL PROTECTIVE EQUIPMENT) & PROCEDURES TRAINING
The choice of PPE (Personal protective equipment) is user’s responsibility according to the local safety regulation,
predicting the following residuary risks:

Hot surface temperatures

Electrostatic charges

Infiammable liquids, noxious substances, etc

Others in relation to type of use
The use of the head must foresee a precise training formation.
It is necessary to pertain to the application of the local safety regulation.