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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To avoid personal injury or property damage from sudden release of process pressure or bursting of
parts. Before performing any maintenance operations:
•
Always wear protective gloves clothing, and eyewear and/or any required PPE.
•
Disconnect any operating lines those providing air pressure, electric power, or a control signal to the actuator.
Be sure the actuator cannot suddenly open or close the valve.
•
Completely shut off the process to isolate the valve from process pressure. Do not remove the actuator from
the valve while the valve is still pressurized.
•
Relieve process pressure from both sides of the valve. Drain the process media from both sides of the valve.
•
The valve-packing box might contain process fluids that are pressurized, even when the valve has been removed
from the pipeline. Process fluids might spray out under pressure when removing the packing hardware or
packing rings, or when loosening the packing box pipe plug. Cautiously remove parts so that fluid escapes
slowly and safely. This point is critical for very High Pressure Valves, class above 2500 and could cause injury,
damage or death
•
Many valve parts those are moving can injure you by pinching, cutting, or shearing. To help prevent such injury,
stay away of any moving part.
•
Never apply pressure to a partially assembled valve.
•
To avoid personal injury or property damage caused by uncontrolled movement of a valve bonnet, loosen the
bonnet by following these instructions: Do not remove a stuck bonnet by pulling on it with equipment that can
stretch or store energy in any other manner. The sudden release of stored energy can cause uncontrolled
movement of the bonnet.
•
As you remove parts, such as valve shafts, other parts, such as disks can fall from the valve body. To avoid
injury from falling parts, be sure to support parts as you disassemble the valve.
•
Check with your process or safety engineer for any additional measures that must be taken to protect against
process media.
MAINTENANCE WARNINGS
