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Online PSV testing service  lets engineers check safety valves without shutting down systems. Using portable rigs, technicians apply pressure and measure how valves lift, all while the process runs. This cuts downtime, saves costs and keeps operations safe. From oil and gas to power plants, live testing is a key part of modern maintenance. How Live Testing Works Live testing uses a clamped rig that connects to the valve bonnet. The testing setup includes a pump, a pressure gauge, and a collection of sensors. With the system at operating pressure, the pump raises pressure slowly. Sensors record the exact point where the valve opens (set point) and where it reseats. All data feeds to a handheld unit or laptop for immediate review. Because the rig uses the plant’s pressure, readings reflect real conditions. Engineers avoid uncertainties that arise when testing on drained or bench-mounted valves. They can test multiple valves in one session, moving from pump stations to process vessels...