PIETRO FIORENTINI REFLUX 819/FO, Техническое руководство

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TECHNICAL MANUAL MT103
39
6.0 TROUBLE-SHOOTING
The problems of various kinds which could arise over time are highlighted below.
They derive from phenomena associated with the conditions of the gas as well, of course, as the natural ageing
and wear of the materials.
It must be remembered that all operations on the apparatuses must be carried out by highly qualified personnel
with appropriate knowledge of the subject. Tampering with the apparatuses by unsuitable personnel relieves us
from all responsibility of any kind.
You must therefore train your maintenance personnel or avail yourself of the service centres officially authorised
by us.
6.1 Tab. 10
REFLUX 819/FO REGULATOR (FIG. 26, 27 and 28)
PROBLEM POSSIBLE CAUSES APPARATUS REMEDY
Unsuitable feed Change the spring [12]
Worn diaphragm [10] R14/A/FO Replace
Spring [12] yielded or off level Pre-regulator Replace
Obturador guide ring [20] worn (Fig. 28) Replace
Friction in diaphragm holder packet Centre the packet hole movement and
204A/FO Pilot
shaft
Worn diaphragm [16]
(Fig. 27)
Replace diaphragm
Operating
Spring [22] yielded or off level Replace
anomalies
Obturator guide ring [35] worn Replace
Friction between the obturator and Check the guide rings [51] [52]
obturator guide
Reinforced gasket [7] off level or worn Regulator Replace
Friction on balancing rod
(Fig. 26)
Replace ring [36]
Spring yielded or off level Replace spring
Service regulator and monitor Distance the two set-points
set-points too close
Ring [17] [18] damaged Replace
Tightness
Guide ring [20] damaged R14/A/FO Replace
failure Q=0
Reinforced gasket [9] damaged
Pre-regulator
Replace
Ruptured diaphragm [10]
(Fig. 28)
Replace diaphragm
Obturator [17] damaged 204/A/FO Pilot (Fig. 27) Replace
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