JABSCO Hy-Line, Инструкция по установке, эксплуатации, техническому обслуживанию и запасным частям

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07/03
6. Start unscrewing the adjusting screw
(135) counter-clockwise until the
pressure gauge reading starts to drop.
7. If a small rod/pencil/pen is inserted into
the end of the adusting screw until it
contacts the end of the valve guide (134)
it is possible to feel the movement of the
valve.
The valve is now set.
8. Check the relief valve setting by opening
the downstream valve or reducing the
pump speed. It will be necessary to
reduce the pressure to approximately
10% of the set pressure to ensure full
closure of the relief valve. Alternatively
stop the pump.
9. Re-start the pump or increase the
pressure as before (see paragraph 4).
10.The relief valve should open at the set
pressure.
11.Make further adjustments as necessary.
2.13 END COVER BARRIER (CODE 5)
Ultima
pumps may also be fitted with an end
cover to accommodate a barrier of sterile
liquid or steam. This offers additional
security when no bacteria or contamination
can be allowed to enter pump, i.e. an
aseptic system. (see figure 7)
Liquid Barriers : The flushing liquid used
must itself be compatible with the pumped
fluid. Fluid should be connected to flow in at
the lowest point on endcover and out at the
highest point to vent air pockets. Barrier fluid
maximum pressure for the end cover is
2 bar. (see figure 8).
Steam Barriers : The pressure of steam
should be as low as possible consistent with
the desired temperature. Steam should be
connected in at the highest point on the end
cover and out at the lowest point to allow
any condensate to drain from the lowest
point. (see figure 6).
2.14 OVERLOAD PROTECTION
To prevent injury to personnel or damage to
pump or system caused by excessive
pressures, a protection device should be
fitted such as:-
Page 14
Hy~Line
and
Ultima
Lobe Pumps
Figure 8 :
Liquid
Barrier
System
for Barrier
End
Cover
Figure 7:
Ultima
Barrier End
Cover