Pneumatic High Vacuum Ball Valves: Overview & Technical Parameters

The Pneumatic High Vacuum Ball Valve is a high vacuum ball valve applied in vacuum systems (also applicable under a certain pressure) to open or cut off gas flow. The valve consists of a rotary cylinder and a valve body, and drives the ball valve to open and close by changing the direction of the air circuit through a solenoid directional valve. This valve features a compact and aesthetic appearance structure and a compensating design of the sealing seat. It has the advantages of automatic compensation for sealing seat wear, reliable sealing and long service life. The valve cylinder can be selected with single-acting and double-acting structures, and can be equipped with signal feedback control, explosion-proof electrical devices and air source treatment components. The applicable working media are various acidic and alkaline gases or liquids.

Technical Parameters of Pneumatic High Vacuum Ball Valve

• Nominal Diameter: Quick-Disconnect: DN10-DN50; Loose Flange: DN10-DN200; Thread: DN10-DN100

• Applicable Range (Pa): Quick-Disconnect Flange (KF) 2×10⁵~1.3×10⁻⁶; Loose Flange 6×10⁵~1.3×10⁻⁶

• Valve Leak Rate (Pa·L/S): ≤1.3×10⁻⁶

• Applicable Temperature: -30℃~150℃ (Standard); -30℃~240℃ (Special)

• Valve Body Material: 304 or 316L Stainless Steel

• Sealing Element Material: Reinforced Polytetrafluoroethylene (PTFE)

• Installation Position: Arbitrary

• Air Source Pressure (MPa): 0.4-0.8

• Power Supply Voltage: AC220V/50Hz (Standard); AC110V; DC24V; DC12V, etc. (Special)

• Signal Feedback and Explosion-Proof: Standard: Valve Position Indicator; Special: Limit Signal Switch / Flameproof Signal Switch / Explosion-Proof Solenoid Valve Coil / Intelligent Positioner (4-20mA)

• Cylinder Selection: Standard: Double-Acting Type; Special: Single-Acting Type (with Spring Return), Normally Open or Normally Closed Optional