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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
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SEAT REPLACEMENT:
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Depressurize the system; ensure that there is no pressure trapped inside the valve.
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Remove valves bonnet(13) and its subassemblies.
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Body(18), seat rings, wedge(17) and gland nuts (5) inspected to be clean, free from any residual material and
damaged or scratched.
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If the wedge (17) is damaged seriously, it should be replaced.
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If seat rings are seriously damaged, valve must be taken out from the line to be repaired
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Ask OMB advise for correct seat rings selection according to the working pressure and the valve size.