PIETRO FIORENTINI HBC 975, Руководство пользователя

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52
HBC 975
EN
Use, maintenance and warning manual
SLAM-SHUT VALVE | INSTALLATION | REV. 00
6.5 - INSTALLATION PROCEDURES
6.5.1 - IN-LINE EQUIPMENT INSTALLATION PROCEDURE
To install the equipment in line and in a square pattern, proceed as follows:
Step Action
1 Place the equipment in the section of the line designated for it.
2 Place the gaskets between the line flange and the equipment flange.
3 Insert the bolts into the appropriate holes of the connecting flanges.
4 Screw the bolts following the technical rules for tightening flanges.
Tab. 6.31.
6.5.2 - CONNECTION OF THE SENSING LINES TO THE DOWNSTREAM PIPING
Fig. 6.8. Welded pipe connections
To obtain correct operation, it is essential that:
• the downstream shut-off valve is placed at a distance of at least 6 times the rated diameter of the pipe downstream
of the equipment;
• the downstream sensing lines are placed on a straight section of pipe (with uniform diameter) having a length equal
to at least 4 times the rated diameter of the pipe itself.
• the velocity of the pressurised fluid at the sampling point does not exceed the following values:
Vmax = 30 m/s for Pa > 5 bar
Vmax = 25 m/s for Pa < 5 bar