OMB Valves S.p.A
. Forged steel GATE, GLOBE & CHECK Valves Installation, Operation and Maintenance Manual Rev.5- 2016
Via Europa,7 Cenate Sotto 24069 (BG) Italy
Tel: +39 035 4256711
Fax: +39 035 942638
www.ombvalves.com
28
SEAT REPLACEMENT:
•
Depressurize the system; ensure that there is no pressure trapped inside the valve.
•
Remove valves bonnet (24) and it’s subassemblies.
•
Body (18), seat ring, disc,
piston or ball
(19) inspected to be clean, free from any residual material and damage
or scratches.
•
If there is rust, it must be clean properly, rusting cause an improper operation for the valve.
•
If the seat is damaged seriously, it should be lapped and replaced.
•
Reassemble the valve, test, and place back in the line.
•
Check Valves Cracking pressure must be advised by OMB Valves S.p.A.
