Diagrama De Flujo A - GF NeoFlow Betriebsanleitung

Válvula reductora de presión NeoFlow
8.2

Diagrama de flujo A

La válvula reductora de presión NeoFlow presenta un funcionamiento defectuoso (por ejemplo, una fuga, no se puede lograr la pre-
sión de salida deseada o no se puede mantener la presión de salida).
Fittings/Pipes Pilot leakage indicator
Retighten, seal or
replace all leaking
components
Outlet pressure
too high
See flowchart B -
variant 1
Codificación Rango de presión
cromática del ajustado
resorte de la (bar [g])
válvula piloto
Plateado 0.0 - 3.0
Negro 1.0 - 8.0*
Rojo 1.0 - 16.0
*Versión estándar
170
Yes
REASON:
Error with the
Pilot Valve
ACTION:
Pilot valve main-
tenance
Check outlet
pressure at KH5
Outlet pressure
too low
Does the inlet pressu-
See flowchart B -
variant 2
Sensibilidad del
ajuste
(bar/vuelta)
0.18
0.43
1.53
Are there any visible
leaks on the
NeoFlow pressure
reducing valve?
No
Are the ball valves
KH1-KH3 open?
No
Yes
Is the pilot valve
spring color coding
correct for the desi-
red outlet pressure?
Yes
Outlet pressure
unstable
No
re fluctuate?
Yes
REASON:
Network problems
(input pressure too
low)
Manual de instrucciones
REASON:
Ball valves closed
ACTION:
Open ball valves and recom-
mission the NeoFlow pressu-
re reducing valve
REASON:
Incorrect pilot valve spring
color coding
ACTION:
No Replace pilot valve spring
and recommission
NeoFlow pressure redu-
cing valve
REASONS:
- Set outlet pressure too high
- Damping valve too wide open
- Air in control chamber
- Control system malfunction
ACTIONS:
- Reset set outlet pressure
- Reset damping valve, see chapter "Reduce
output pressure fluctuations"
- Open KH4 for approx. 20 sec.
- Restart pilot valve