Pneumatic two-piece 2-way threaded ball valve-DK66-2PS
Pneumatic two-piece 2-way threaded ball valves are vital components in fluid control systems, offering reliable and efficient regulation of fluid flow in various industrial applications. With their innovative design and pneumatic actuation, these valves provide precise control, rapid response, and long-term durability, making them indispensable in industries such as oil and gas, chemical processing, water treatment, and more. This comprehensive introduction explores the design, operation, advantages, applications, and significance of pneumatic two-piece 2-way threaded ball valves in modern industrial settings.
Pneumatic ball valve is composed of pneumatic actuator and ball valve, Pneumatic actuator with a gas source to drive the valve spool rotation of 90 degrees. Pneumatic ball valves are usually configured with various accessories, such as solenoid valves, air source processing triplets, limit switches, positioners, control boxes, etc., to achieve local control and remote centralized control.
- Model: Ball valve
- Size Range: 1/4″ to 4″
- Pressure Range: 1.0 to 1.6MPa
- Material: Stainless Steel 304/316,WCB
Description
The pneumatic two-piece 2-way threaded ball valve comprises two main components: the valve body and the pneumatic actuator. The valve body typically consists of two halves, allowing for easy installation and maintenance. Within the valve body, a hollow ball with a central bore rotates within the flow path. When the bore aligns with the inlet and outlet ports, fluid can flow through the valve, and when rotated perpendicular, flow is blocked.
The pneumatic actuator is the key to the valve’s operation. It converts pneumatic energy into mechanical motion to control the position of the valve ball. Upon receiving a signal from the control system, compressed air is directed into the actuator, causing a piston or diaphragm to move, which in turn rotates the valve ball to open or close the flow path. This pneumatic actuation provides fast response times, precise control, and remote operation capabilities.
Pneumatic Two-Piece Threaded Ball Valve Parameter:
| Valve Body | Valve components | ||
| Size Range | DNO8-DN100 | Sealing material | PTFE:-20℃~180℃PPL:-20℃~150℃ |
| Body Material | SS304 SS316 SS316L | Core Material | Stainless Steel 316 |
| End Connection | Female Thread | Stem Material | Stainless Steel |
| Operating Pressure | PN1.0~1.6MPa | Applicable media | Control of Water. Air. Gas.Oil, Liquid, Steam |
| Structure | Floating ball core | ||
Valves Advantages
Precise Control: Pneumatic two-piece 2-way threaded ball valves offer precise control over fluid flow rates, allowing for accurate modulation and regulation of process parameters.
Rapid Response: The pneumatic actuation system enables quick opening and closing of the valve, facilitating rapid response to changes in process conditions and enhancing system efficiency.
Reliability: With fewer moving parts and robust construction, these valves are highly reliable and require minimal maintenance, ensuring uninterrupted operation in demanding industrial environments.
Versatility: Suitable for a wide range of fluids, including corrosive and abrasive media, pneumatic two-piece 2-way threaded ball valves find applications in diverse industries and process conditions.
Valves Applications
Chemical Processing: These valves regulate the flow of chemicals, acids, and solvents in chemical manufacturing plants, ensuring accurate dosing and mixing for process optimization.
Oil and Gas: In oil and gas production facilities, these valves control the flow of crude oil, natural gas, and various hydrocarbons, facilitating safe and efficient extraction, processing, and transportation operations.
Water Treatment: Used in water and wastewater treatment plants, these valves manage the flow of water, chemicals, and sludges, enabling effective purification, filtration, and disinfection processes.
HVAC Systems: Pneumatic two-piece 2-way threaded ball valves play a crucial role in heating, ventilation, and air conditioning (HVAC) systems, regulating the flow of water or refrigerant to maintain desired temperatures and humidity levels in commercial and residential buildings.
Technical Parameters of Valves Actuator
| Springs quantity | Air Pressure(MPa) | Spring return | ||||||
| 0.3 | 0.4 | 0.5 | ||||||
| Begin | terminal | Begin | terminal | Begin | terminal | Begin | terminal | |
| 8 | 15 | 7.9 | 22.3 | 15.2 | 27.9 | 19.1 | 14.2 | 7.1 |
| 10 | 20.6 | 11.7 | 26.2 | 15.5 | 17.8 | 8.9 | ||
| 12 | 18.8 | 8.1 | 21.3 | 10.7 | ||||
| 8 | 25.1 | 16.2 | 38.1 | 29.3 | 47.6 | 36.6 | 22.8 | 14 |
| 10 | 34.6 | 23.6 | 44.1 | 30.9 | 28.5 | 17.5 | ||
| 12 | 31.1 | 17.9 | 34.2 | 21 | ||||
| 8 | 56.1 | 26.5 | 85.1 | 55.5 | 106 | 69.4 | 60.7 | 31.1 |
| 10 | 77.3 | 40.3 | 96.8 | 54.2 | 75.9 | 38.9 | ||
| 12 | 69.6 | 25.2 | 91 | 46.6 | ||||
| 8 | 101 | 65.7 | 155 | 120 | 194 | 150 | 97.7 | 62.2 |
| 10 | 140 | 95.7 | 179 | 125 | 122 | 77.7 | ||
| 12 | 124 | 71.3 | 146 | 93.2 | ||||
| 8 | 201 | 134 | 312 | 246 | 391 | 307 | 199 | 133 |
| 10 | 279 | 196 | 357 | 258 | 249 | 166 | ||
| 12 | 246 | 146 | 299 | 199 | ||||
| 8 | 465 | 309 | 734 | 578 | 917 | 723 | 497 | 341 |
| 10 | 648 | 454 | 832 | 599 | 621 | 427 | ||
| 12 | 563 | 330 | 745 | 512 | ||||
| 8 | 945 | 670 | 1474 | 1199 | 1843 | 1499 | 915 | 640 |
| 10 | 1314 | 970 | 1683 | 1270 | 1144 | 800 | ||
| 12 | 1154 | 741 | 1373 | 961 | ||||
| 8 | 1491 | 838 | 2314 | 1662 | 2893 | 2077 | 1631 | 979 |
| 10 | 2069 | 1254 | 2648 | 1669 | 2039 | 1223 | ||
| 12 | 1825 | 846 | 2447 | 1468 | ||||
| 8 | 2181 | 1404 | 3427 | 2650 | 4284 | 3312 | 2330 | 1554 |
| 10 | 3038 | 2067 | 3895 | 2730 | 2913 | 1942 | ||
| 12 | 2650 | 1484 | 3496 | 2331 | ||||
Air source processor: The pneumatic triplet, a vital accessory for pneumatic valves, combines filtering, pressure reduction, and lubrication functions. The pressure reducing valve adjusts inlet pressure to a stable outlet pressure, utilizing the medium’s energy. In two-piece assemblies, it couples with a filter for compressed instrument air filtering. In three-piece configurations, it adds lubrication to the air, ensuring efficient operation.
Pneumatic solenoid valve: The pneumatic solenoid valve, also known as a directional control valve, is a vital component for regulating the opening and closing of pneumatic valves. It functions by magnetizing and demagnetizing, which directs the gas flow based on voltage signals. Commonly employed to manage gas source and circuit flow, these valves offer precise control over valve operations through voltage signals.
Limit switch: The valve limit switch, also called a travel switch, is a critical field instrument in automatic control systems. It detects the valve’s status and outputs signals for open or closed positions. This switch is essential for confirming and executing subsequent programs by programmers. Additionally, it serves as a vital component for valve interlock protection and remote alarm indication within the system. It effectively indicates and provides feedback on mechanical equipment’s movement limit position.
Valve positioner: The valve positioner is a crucial component of pneumatic control valves, enabling precise control over valve positioning. It utilizes the valve stem displacement signal as input feedback and the controller output signal as the control signal. By comparing these signals, any deviation triggers adjustments to the actuator output signal, ensuring a direct correspondence between valve stem displacement and controller output.
Manual device: The manual device is an essential component that complements the pneumatic actuator assembly. It serves to facilitate manual or pneumatic operation for butterfly valves and ball valves with a 90° opening. This mechanism is crucial for ensuring versatility and flexibility in valve operation, allowing for both manual and automated control as needed.
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