UNIWORLD Series
M/UNIWORLD-P/E ed. 01 2020
6.3
– Additional RISK ANALYSIS
This document assesses the risks relating to the equipment indicated above, which can arise during its use, installation
or movement, in compliance with the provisions of the ATEX Directive 2014/34/EU. The provisions are also indicated to
comply with to avoid them arising.
The classification of the SOLUTIONS implemented is as follows:
Solution to eliminate and/or reduce the risk.
Application of the appropriate safety measures against the risks which cannot be eliminated
Information for users
CAUSE
HIGH SURFACE WORKING TEMPERATURE IN ACCORDAN
CE WITH SUFFIX “T”
T6…T1
EFFECT
Metal parts at high temperature,
Danger of Explosion
DANGER
The surface temperature of the body unit can reach (not considering heat dissipation caused
by the body) high values that may not be compatible with the fluid in the source body.
SOLUTION
Check the ignition temperature of GASEOUS and/or DUST mixes and compare them with
the maximum surface temperature of the valve.
Insulate the complete body unit, BODY AND BONNET
, using suitable and appropriately thick
material to reduce the surface temperature and set it at a limit 20% under the ignition
temperature of the GASEOUS and/or DUST mix formed in the environment.
For dust, reduce the surface temperature by 2/3 of the auto-ignition temperature of the cloud or
reduce the surface temperature by 75°C of the auto-ignition temperature of a 5 mm layer of
dust.
FOR GROUP IIIC the maximum surface temperature must be ≤120 °C
Ensure adequate personal protection
6.4
– HEALTH AND SAFETY
ATTENTION
Comply with all the health and safety standards planned for the site (classified area) where
the equipment is installed in strict compliance with the employer's risk analysis.
ATTENTION
Wear the planned personal protective equipment.
ATTENTION!
Do not remove or carry out maintenance on the valve, without having firstly completely
depressurised it and, where necessary, cleaned the residue of any toxic, explosive or flammable
substances away.
ATTENTION
Do not handle valves that were used in the presence of harmful substances, unless they
were completely decontaminated and certified as safe for handling
ATTENTION
Ensure that potentially flammable dust is reduced to a minimum through accurate and
frequent cleaning and/or using suitable guards.
ATTENTION
Never use a valve for conditions that exceed the working conditions. Contact our technical
office for further information.
Never change or alter the valves without consulting the manufacturer.
6.5
– PRECAUTIONS FOR USE
To guarantee full compliance with the requirements of the ATEX Directive 2014/34/EU, fluids compatible with the
external environment must be used as heat transfer fluids.
