DeZurik APCO AVV-1800 Manuale di istruzioni - Pagina 17
Sfoglia online o scarica il pdf Manuale di istruzioni per Unità di controllo DeZurik APCO AVV-1800. DeZurik APCO AVV-1800 18. Dual body combination air valve with optional csv surge check valve
Stampa la pagina
APCO AVV-1800/1800K Dual Body Combination Air Valve
Troubleshooting
Condition
Valve leaks at flange joint.
Valve leaks out of outlet port.
June 2019
with CSV Surge Check Valve
Possible Cause
Loose flange bolting.
Blown flange gasket.
Misalignment or damage to field
piping and supports.
Damaged flange face/s or
improper flange connections.
Dirty needle and/or seat.
Worn needle and/or seat.
Dirty seat and/or float.
Worn seat and/or float.
Line pressure is under 10 psi
(70KPa).
Float linkage is dirty.
Page 17
DeZURIK
Corrective Action
Tighten flange bolting.
Replace flange gasket.
Adjust misalignment or repair
piping or supports.
Repair flange, replace valve
body or adjust flange
connections.
Clean needle and/or seat.
Replace needle and/or seat.
Clean seat and/or float.
Replace seat and/or float.
Replace seat with softer seat.
Clean float linkage.
D12025