I N S T R U C T I O N S
For the installation and maintenance variable area MDM
spring-assisted d e s u p e r h e a t e r s
IMI0046E.doc
Rev.0 14/03/13
20090 SEGRATE (MI)- via E.Fermi
EMAIL:
TEL.(02) 269912.1 - FAX.(02) 2692.2452
Page 6 of 11
6.
SAFETY PRECAUTIONS
Always follow the safety regulations applicable to the plant and observe the
following precautions:
° Wear protective clothing. Hot water causes burns and superheated
vapour is invisible.
° When disassembling valves, wear protective clothi ng so as to prevent
exposure to splashes of any process fluid that may be left inside the
valves.
Bear in mind that such fluid could generate a potentially explosive
mixture.
Before starting disassembly, make certain that the valve is isolated from
any source of pressure that may exist within the system.
° Carry out checking/maintenance of valves at least once every twelve
months.
° The outer surfaces of valves reach temperatures a pproximately equal to
the temperature of the fluid flowing through them. For this reason, if fitting
a valve in a potentially explosive atmosphere, check that the explosion
point of the atmosphere surrounding the valve is sufficiently higher than the
temperature of the fluid handled by the system, and prevent deposits of
dust from forming on the outside of the valve.
° In the connection between the valve and line, ens ure the equipotentiality
of the system in order to prevent the accumulation of electro-static charges
on the outer surfaces of the plant, which could act as an effective trigger in
a potentially explosive atmosphere.
° Before carrying out any work on valve components, consult CARRARO.
