DELCO Pneumatic High Vacuum Ball Valve – Flanged, High Sealing Integrity
The DELCO Pneumatic High Vacuum Ball Valve is engineered for critical vacuum applications requiring extremely low leak rates (Vacuum degree ≤ 1×10⁻⁶ Pa). Featuring high-precision machining and specialized Viton (FKM) or Bellows sealing, it ensures absolute isolation in negative pressure environments. It is the standard choice for semiconductor, aerospace, and vacuum coating industries.
Size Range: DN06-DN100
Material: WCB, Stainless Steel etc.
Connection Standard: G / BSPT / NPT
Features
A specialized pneumatic flanged ball valve designed for high vacuum systems, ensuring ultra-low leak rates and reliable sealing down to 10⁻⁶ Pa.
✅High Vacuum Performance: Engineered to maintain a vacuum degree of ≤ 1 × 10⁻⁶ Pa, providing superior leak tightness compared to standard Pneumatic Flanged Ball Valves which may leak under deep vacuum.
✅Specialized Vacuum Sealing: Utilizes high-grade Fluororubber (Viton/FKM) seals and precision-polished surfaces to prevent gas permeation and ensure a reliable seal in negative pressure.
✅Optional Bellows Stem Seal: Available with a metallic bellows stem seal to provide a hermetic barrier, completely eliminating stem leakage risks in ultra-high vacuum applications.
✅Anti-Blowout Stem: Safety-first design features an internally loaded stem that prevents ejection, ensuring operational safety even if the system is accidentally pressurized.
✅Pneumatic Automation: Powered by a responsive pneumatic actuator for fast open/close cycling, essential for automated vacuum load locks and chamber isolation processes.
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Key Application Fields
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Oil & Gas
DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines. -
Chemical & Petrochemical
DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely. -
Power Generation
DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants. -
Food & Pharmaceutical
DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity. -
Water & Wastewater
Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability. -
HVAC & District Heating
DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.
Browse our case studies or talk directly with our engineers to discuss your application.
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