Basic structure of Sanitary Butterfly Ball Valve
Valve body: Usually made of materials such as stainless steel, carbon steel, etc., such as WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, etc., it has good corrosion resistance and strength, and can adapt to different working environments.
Sphere: Generally made of stainless steel materials such as 2Cr13, 1Cr18Ni9Ti, 1Cr18Ni12MoTi, etc. The surface of the sphere is precision machined to ensure sealing performance with the valve seat.
Valve stem: Made of material similar to a sphere, it is connected to the sphere through threads or other connection methods, used to control the rotation of the sphere and achieve the opening and closing of the valve.
Sealing ring: Common materials include polytetrafluoroethylene (PTFE), reinforced PTFE, and para polystyrene, which have good sealing, wear resistance, and corrosion resistance, and can effectively prevent medium leakage.
Packing: Generally made of polytetrafluoroethylene or flexible graphite, used to seal the gap between the valve stem and valve body, preventing medium leakage from the valve stem
Product Features
Low fluid resistance: Its resistance coefficient is equal to that of a pipe section of the same length, even for a reduced diameter ball valve, its fluid resistance is quite small, and the pressure loss when the medium passes through is small.
Simple structure, small size, and light weight: composed of main components such as valve body, sphere, and valve stem, the structure is relatively simple, the overall volume is small, the weight is light, and it is easy to install, disassemble, and transport.
Good sealing performance: The sealing ring made of elastic materials such as polytetrafluoroethylene is easy to seal, and the sealing ability of the ball valve increases with the increase of medium pressure, ensuring good sealing performance in vacuum systems.
Easy to operate, quick opening and closing: simply rotate 90 ° from fully open to fully closed, easy and fast to operate, convenient for remote control, and can quickly cut off or connect media.
Easy maintenance: Ball valves have a simple structure, and components such as sealing rings are generally movable, making disassembly and replacement relatively convenient, and the maintenance cost is relatively low.
Wide applicability: The diameter can range from a few millimeters to a few meters, and can be applied from high vacuum to high pressure. It is suitable for various media such as steam, water, oil, nitric acid, acetic acid, etc.
Equipped with anti-static function: springs are installed between the ball, valve stem, and valve body to dissipate static electricity generated during the switching process and prevent static electricity accumulation from causing safety accidents.
Post time: May-23-2025