PIETRO FIORENTINI Dival 600, Руководство пользователя

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68
DIV
AL 600
EN
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR | COMMISSIONING | REV. A
8.2 - PRELIMINARY PROCEDURES FOR COMMISSIONING
HAZARD!
Before commissioning the equipment, it must be ensured that any source of explosion has been eliminat -
ed if there is such a danger.
WARNING!
Before commissioning, you need to make sure that the characteristics of the equipment are suitable for
the conditions of use.
ATTENTION!
To protect the equipment from damage, never:
• pressurise the equipment through a valve located downstream of it;
• depressurise the equipment through a valve located upstream of it.
Commissioning can be carried out using two different procedures:
Commissioning types
Injection of an
inert fluid
Pressurising the equipment by injecting an inert fluid (e.g. nitrogen) to avoid potentially explosive
mixtures for services with combustible gases.
WARNING!
During pressurisation, always check that the equipment has no leaks.
Direct injection
Direct injection of gas into pipes, keeping the gas velocity in the pipes as low as possible (maximum
permitted value of 5 m/s).
Tab. 8.43