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Ball valves are suitable for the following media: water, gas, oil products, natural gas, and acidic and alkaline corrosive media.
The applicable temperature range for the ball valve is -196 to 350℃.
Ball valve actuation methods: manual, pneumatic, electric, hydraulic, etc.
Ball valve nominal diameter: DN15 - 250mm, 1/2" - 10"
Ball valves are mainly used to cut off or connect the medium in pipelines, and can also be used for the regulation and control of fluids. Compared with other types of valves, they have the following advantages.
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Structural features:
1. Low fluid resistance. The ball valve has the lowest fluid resistance among all types of valves. Even the reduced-diameter ball valve has relatively low fluid resistance.
2. The thrust bearing reduces the frictional torque of the valve stem, enabling the valve stem to operate smoothly and flexibly for an extended period.
3. The valve seat has excellent sealing performance. The sealing ring is made of elastic materials such as polytetrafluoroethylene. The structure is easy to achieve sealing, and the sealing capacity of the ball valve increases as the medium pressure rises.
4. The valve stem has a reliable seal. Since the valve stem only undergoes rotational movement and not vertical movement, the packing seal of the valve stem is less likely to be damaged, and its sealing capacity increases as the pressure of the medium increases.
5. Due to the excellent self-lubricating properties of materials such as polytetrafluoroethylene, there is minimal frictional loss between the ball valve and the medium, thus resulting in a long service life for the ball valve.
6. The lower-mounted valve stem and the raised step at the stem head prevent the valve stem from spilling out. In case the valve stem seal is damaged due to a fire, the raised step can still form a metal contact with the valve body, ensuring the valve stem seal.
7. Anti-static function: Springs are installed between the sphere, the valve stem, and the valve body, which can discharge the static electricity generated during the switching process.
According to different control and requirements, the following accessories can be selected:
Cut-off type accessories: single electrically controlled solenoid valve, double electrically controlled solenoid valve, limit switch feedback device.
Adjustment type accessories: electrical positioner, pneumatic positioner, electrical converter.
Air source treatment accessories: air filter and pressure reducing valve, air source treatment triplex unit.
Manual mechanism: HVSD manual control mechanism.
Execution standards:
1. Design and manufacture: GB12237-89, API608, API6D, JPI7S-48, BS5351, DIN3357.
2. Flange dimensions: JB/T74~90 (JB74~90), GB9112~9131, HGJ44~76, SH3406, ANSI B16.5, JIS B2212~2214, NF E29-211, DIN2543.
3. Structural length: GB12221-89, ANSI B16.10, JIS B2002, NF E29-305, DIN3202. 4. Main test verification: JB/T 9092, API 598.
Packing of Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition
