PIETRO FIORENTINI NORVAL, Инструкция по установке, пусконаладке и обслуживанию

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TECHNICAL MANUAL MT044
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8.1 CHECKING THE TIGHTNESSES AND SETTING
1) Very slowly open the on/off valve upstream from the regulator and using a foam solution or the like check:
• the tightness of the external surfaces of the regulator;
• the tightness of the slam-shut;
• the tightness of the internal surfaces of the regulator;
• the tightness of the fittings.
2) Operating very slowly, turn the reset lever, pos. , of the slam-shut from the vertical position towards
the horizontal position until only the internal by-pass is opened. Then raise the lever completely to the
re-engage position.
• Check the tightness of the reinforced gasket of the regulator.
3) Open a bleed cock downstream from the regulator to create a small gas flow.
4) Screw in the adjustment screw pos. until the desired set-point value is reached.
5) Close the bleed cock to the atmosphere.
8.2 START UP
1) Very slowly open the downstream on/off valve and, if necessary, adjust the regulator set-point by means of
the adjustment screw, pos. .
2) Fix the lock-nut, pos. .
8.0 FINAL OPERATIONS
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