Ball Valve News & Technical Insights from J-VALVES
Ball Valve End Connections: Flanged, Butt Weld, Socket Weld And Threaded
Flanged, butt weld, socket weld or threaded ends change installation, leak risk and cost. Compare ball valve end connections and how to choose.
Cryogenic Ball Valve Design: Bonnet Length, Materials and Cold Testing
Cryogenic ball valve design for LNG: extended bonnet length, CF8M impact testing, PCTFE seats, cavity relief and the -196°C test that proves it.
Full Port Vs Reduced Port Ball Valves: Flow And Cost Trade-off
Full port and reduced port ball valves compared on Cv, pressure drop, pig passage and torque, with the numbers that decide the bore in a purchase order.
Floating Ball Valve Torque And Seat Loading Explained
How floating ball valve torque comes from seat load, why break torque rises with bore cubed, and how to size a gearbox or actuator without stalling.
ESD Ball Valve: Spring Return Vs Double Acting Actuators
Spring return or double acting for an ESD ball valve: failure mode, spring torque curve, safety factors and the checks IEC 61511 asks for.
V Port Ball Valves for Control And Throttling Service
V port ball valves throttle process flow with a near equal percentage characteristic. Compare notch angles, turndown, seat choice and actuator sizing.
3-Way Ball Valves: L Port Vs T Port Selection Guide
3 way ball valves divert or mix flow with L port or T port balls. Compare flow paths, seat arrangements and actuator travel to pick the right pattern.
Ball And Seat Lapping: How Leakage Class Is Achieved
Ball and seat lapping for ball valves: grit sequence, contact band, Ra targets and the checks that hold ISO 5208 Rate A at 1.1 times pressure.
Duplex And Super Duplex Ball Valves for Seawater F51, F55 And C95800
Compare F51 duplex, F55 super duplex and C95800 nickel aluminum bronze for seawater duty: corrosion limits, temperature ceilings and failure risks.
Ball Valve Vs Gate Valve: Which One Is Correct for Isolation
Ball valve or gate valve for isolation? Compare torque, tightness, cycle life, size range and maintenance cost with clear decision rules.