The pneumatic three-way ball valve is a pipeline control valve driven by a pneumatic actuator. Structurally, it is divided into L-type and T-type. The L-type allows switching of the medium flow direction between two mutually perpendicular channels, while the T-type allows for connection, diversion, or selective closure of three channels. The two types have no significant difference in appearance.
They have a compact structure, employing a two-seat or four-seat design. The seat materials are mostly PTFE or para-polystyrene, equipped with fire-resistant structures, anti-static valve stems, and explosion-proof devices, conforming to manufacturing standards such as GB/T12237 and API 608.
The valve's sealing performance is achieved through the elastic deformation of the four-sided valve seats, and any port can be used as an inlet. Nominal diameters cover DN15-250mm, pressure ranges from 1.6-6.4MPa, and applicable temperatures can reach -30~+300℃ depending on the material.
Valve body materials include WCB, 304, and 316, and connection methods are mainly flanges and internal threads. It is equipped with double-acting or single-acting pneumatic actuators, and optional accessories include feedback devices, solenoid valves, and handwheel mechanisms. It is widely used in media control of pipeline systems in industries such as water supply, petrochemicals, metallurgy, and food.
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Pneumatic 3 way ball valve Technical parameters
Nominal Diameter: DN15～DN300
Structure: Spherical
Nominal Pressure: 1.6Mpa～6.4Mpa
Connection Method: Flange, Internal Thread
Applicable Temperature: ≤450ºC
Actuation Method: Pneumatic
Valve Body Material: Cast Steel, Stainless Steel
Manufacturing Standard: GB (Chinese National Standard), DIN (German Standard), API (American Standard), ANSI (American Standard)
Applicable Media: Water, Oil, Gas, Liquid
Wide Applications: Petroleum, Chemical, Power, Environmental Protection, Water Conservancy, Heating, Water Supply and Drainage, Industrial, Machinery
Pneumatic three-way ball valve functions:
Regulating fluid flow: By adjusting the opening and closing degree of the valve, the flow rate of fluid in the three pipes can be adjusted to meet the needs of fluid transmission.
Isolating pipelines: When it is necessary to isolate a pipeline, the valve can be closed to isolate the pipeline from other pipelines.
Chemical Dispensing: For industries that need to control the dispensing of chemicals, pneumatic three-way ball valves can make it easier to control and dispense chemicals.
Reduced flow resistance: During fluid flow, the smooth surface of the pneumatic three-way ball valve reduces the flow resistance in the pipeline, thereby reducing the pressure loss of the system.
Applications of Pneumatic Three-Way Ball Valves:
- Petrochemical Industry: Due to their unique spherical structure and pneumatic actuator, pneumatic three-way ball valves enable precise control and regulation of various media, such as pipeline transportation and flow diversion. In petrochemical plants, they are widely used in catalytic cracking units, pyrolysis furnaces, and other equipment, providing strong support for the smooth operation of production processes.
- Power Systems: In thermal power plants, pneumatic three-way ball valves are used to regulate steam flow and pressure, ensuring stable generator operation. In nuclear power plants and new energy fields such as wind power generation, they are also widely used in various fluid control scenarios, such as regulating cooling water flow.
- Building Water Supply and Drainage Systems: Pneumatic three-way ball valves enable precise control of various liquids and gases, such as water supply, drainage, and fire protection systems. By using pneumatic three-way ball valves, precise regulation of water flow can be achieved, improving the operating efficiency of water supply and drainage systems.
- Environmental Protection and Water Treatment: Pneumatic three-way ball valves can be used in the treatment, purification, and reuse of wastewater to achieve switching and control between different pipelines. By using pneumatic three-way ball valves, precise regulation of wastewater flow can be achieved, improving wastewater treatment efficiency and protecting the environment.
- Food and Pharmaceutical Industries: The design of pneumatic three-way ball valves meets the extremely high hygiene and safety requirements of these industries. Their excellent sealing performance and stable operating performance make them an ideal choice for these industries. In food and beverage production, pneumatic three-way ball valves are widely used in various fluid control scenarios, such as raw material conveying and product processing.
- Marine and Marine Engineering: In marine fuel and cooling systems, pneumatic three-way ball valves are used to regulate flow and pressure, ensuring the normal operation of the vessel. In marine engineering, pneumatic three-way ball valves are also used in various fluid control scenarios.
