Shoulong Valve
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Electric actuator for automation and worm gear for manual operation during emergencies, ensuring reliable control in all conditions.
Allows in-line inspection and maintenance without removing the valve, reducing downtime and costs.
Forged body and trunnion-mounted ball ensure stable pressure distribution, ideal for high-pressure, large-diameter applications.
Bi-directional sealing provides stable, low-torque operation, even under extreme pressure, ensuring leak-free performance.
Emergency sealing device ensures leak-free operation during critical situations, enhancing safety and quick response.
Available in sizes from 2" to 64", with materials like ASTM A216 WCB, Stainless Steel, and Duplex, ideal for harsh environments.
QWhat is the difference between the electric actuator and the worm gear in a dual-drive ball valve?
The electric actuator enables automated remote control during normal operations, while the worm gear provides a reliable manual backup during power failures or emergency situations ensuring continuous, safe valve operation under all conditions.
QWhat are the benefits of a top entry design in a trunnion ball valve?
The top entry design allows operators to inspect, repair, or replace internal components directly in the pipeline without removing the entire valve. This significantly reduces maintenance downtime, labor costs, and the risk of pipeline system disruption.
QWhy is a forged trunnion-mounted ball preferred for high-pressure applications?
Forged bodies offer superior strength and structural integrity compared to cast alternatives. The trunnion mounting fixes the ball in position, distributing pipeline pressure evenly across the seats rather than concentrating it, making it highly reliable for high-pressure and large-diameter applications.
QHow does bi-directional sealing help maintain stable torque performance?
Bi-directional sealing ensures that both upstream and downstream seats provide effective sealing regardless of flow direction. This design reduces the friction-induced torque on the valve stem, maintaining consistent, low-torque operation and preventing leaks even under extreme pressure conditions.
QWhat materials are available for corrosion-resistant trunnion ball valves?
These valves are available in a range of materials including ASTM A216 WCB carbon steel, Stainless Steel (e.g., 316/304), and Duplex Stainless Steel, making them well-suited for corrosive media, offshore environments, chemical processing, and other demanding industrial applications.
QIn what size range are these trunnion ball valves available?
The valves are available in sizes ranging from 2" to 64", covering a wide spectrum of pipeline requirements. They are widely used in oil and gas, petrochemical, water treatment, power generation, and offshore industries where reliable shut-off performance and durability are critical.
