Troubleshooting & Maintenance

The Short Answer Valve packing replacement is the removal and renewal of the stem sealing material in the stuffing box, […]

The Short Answer Control valve stiction is a condition where the valve stem does not move smoothly in response to […]

The Short Answer A buzzing solenoid valve is usually a sign that the magnetic circuit is not holding properly, not […]

The Short Answer When a valve actuator stops moving, the first step is to decide whether the problem is in […]

The Short Answer A valve flange leak is a joint problem, not a valve problem, and the fix starts with […]

The Short Answer A valve stem bends when the force acting on it exceeds the stem’s ability to stay straight—most […]

The Short Answer Valve corrosion pitting is localized metal loss that appears as small cavities or holes in the body, […]

The Short Answer Adjusting valve packing is the routine way to stop a small stem leak without replacing the packing. […]

The Short Answer Cavitation damage is caused by vapor bubbles forming inside the valve and collapsing against the metal surface, […]

The Short Answer An unstable air supply to a control valve usually shows up as hunting, slow response, or a […]

The Short Answer A leaking ball valve seat usually means one of four things: the valve is not fully closed, […]

The Short Answer A gate valve stem leak is almost always a packing problem, and most stem leaks are fixable […]

The Short Answer A valve that will not close fully is usually one of four things: debris trapped on the […]

The Short Answer Steam trap failures are usually found by checking three behaviors — continuous blow-through, condensate flooding, and lost […]

The Short Answer A butterfly valve disc that is scratched, pitted, deformed or even cracked is usually the symptom of […]

The Short Answer Valve noise is a signal, not just a nuisance. The most common causes are cavitation, flashing, choked […]

The Short Answer Control valve hunting is a rapid, continuous cycling of the valve and its positioner around a setpoint […]

The Short Answer A valve packing leak is a leak around the valve stem where it passes through the bonnet, […]

The Short Answer Installing a ball valve correctly comes down to preparation, clean alignment, and protecting the soft seat materials […]

The Short Answer Replacing a gate valve follows the same discipline as replacing any inline component: isolate the section, verify […]

The Short Answer Testing a check valve means verifying two things: that it opens freely in the flow direction and […]

The Short Answer A ball valve that will not turn is usually caused by one of a few familiar problems: […]

The Short Answer Check valve slamming happens when the closure member slaps against the seat as reverse flow begins, usually […]