PIETRO FIORENTINI REVAL 182, Инструкция по эксплуатации и обслуживанию

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87
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR | INSTALLATION | REV. 00
EN
To calculate the flow rate, use the following formula:
= 345,92
2
1 − 0,002
1 +
V = gas velocity in m/sec
Q =
gas flow rate Stm³/h
DN = nominal diameter of the regulator in mm
Pd =
regulator outlet pressure in barg
NOTICE!
All on-site pneumatic connections must have pipes with a minimum internal diameter of 8 mm.
To prevent the pneumatic connections of the sensing lines from collecting impurities and condensation, it is necessary
that:
• the connections of the pneumatic connection are always welded to the top or horizontal axis of the pipe itself (refer
to Fig. 6.30);
• the hole in the piping has no burrs or internal protrusions;
• the slope of the pneumatic connection is always 5-10% towards the downstream pipe connection.
Fig. 6.30. Welded pipe connections