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For clean methanol near room temperature, start with a carbon steel or 316 stainless steel ball valve, a PTFE-family soft...

For on/off slurry service, select the valve from six items first: maximum particle size, particle hardness, solids concentration, settling behavior,...

Before the first operation of a large ball valve, check the shipping restraints, bore and pipeline cleanliness, piping alignment, supports,...

When a metal-seated ball valve starts leaking more after repeated cycling, the problem is usually at the ball-to-seat contact. The...

Ball valve seat extrusion usually starts when differential pressure pushes PTFE, RPTFE, PEEK or another polymer into a gap that...

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...