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A ball valve that leaks at low pressure but seals better as pressure rises usually has one of four problems:...

A ball valve usually jams after shutdown because the torque needed to start it has increased, or the actuator can...

Use valve sealant only when the valve has an injection system made for the problem you are dealing with. In...

For a normally static, non-regulated pipeline ball valve in clean, stable service, 6–12 months can be used as a maintenance...

A new ball valve is usually hard to turn for one of four reasons: new seat and stem-seal friction, high...

If a DBB valve bleed port stays pressurized after the cavity has been safely vented, compare the cavity pressure with...

Do not choose a DBB bleed from the main valve NPS alone. Choose the effective flow path that can reduce...

Ball valves do not have one fixed warehouse expiration date. A valve stored correctly for several years may still be...

Keep normal on-off ball valves fully open during through-flushing unless the valve manual requires removal or another position. Remove large...