Working Principle
1. Medium pressure prevents the valve core from pushing to one side, keeping it always centered.
2. Rotating the valve core 90° achieves full open/full close.
3. The valve seat has a built-in pre-tension spring, ensuring a seal even at low pressure.
4. More reliable sealing under high pressure, less prone to jamming and wear.
Main Advantages
1. Suitable for high pressure and large diameters. Pressures can reach Class 600, 900, 1500, and even higher. More stable than floating ball valves at large diameters.
2. Low torque and easy operation. The valve core is not pressurized, making manual/pneumatic/electric operation easier.
3. Long seal life. The valve core does not rub against or compress the valve seat, resulting in even wear, suitable for frequent switching.
4. Less prone to jamming. More durable than floating ball valves in media containing particles and impurities.
5. Optional bidirectional sealing. Achieves true bidirectional zero leakage, meeting the requirements of complex pipelines.
Applicable Operating Conditions
• Oil and gas, chemical, long-distance pipelines
• High temperature, high pressure, flammable and explosive media
• Large-diameter pipeline networks, circulation systems
• Media containing small amounts of particles, viscous media
Common Material Combinations
• Valve body: WCB/SS304/SS316/33316L/special alloy materials
• Valve core/seat: Hardened stainless steel/hard alloy overlay
• Seal: PTFE, filled PTFE, reinforced PTFE
• Applicable temperature: Approximately -29℃～200℃
