how to choose vacuum butterfly valves

Vacuum butterfly valves are an efficient, reliable choice for vacuum systems, owing to their fast response, strong pressure control, and broad pressure range. Suitable for diverse vacuum applications—especially high-pressure/low-flow environments—they offer flexible sealing options: rubber seals (for high vacuum), all-metal or metal-sealed designs (for ultra-high vacuum and wet media) to meet varied process needs.

High Efficiency: Extremely low control conductance enables flow regulation from zero to minimal levels, ensuring precise adjustment in vacuum systems.

Superior Pressure Control: Excellent pressure control and a wide regulation range suit applications with different vacuum requirements.

Fast Response: High operating speed and quick reaction to control signals, critical for vacuum tasks needing precise, timely adjustments.

Broad Applicability: Fits various vacuum scenarios, covering pressure levels from high vacuum to ultra-high vacuum.

Rubber Seals: For high vacuum; reliable performance, often with ISO-KF/ISO-K flanges.

Metal Seals: Ideal for ultra-high vacuum and wet media contact; fitted with CF flanges.

All-Metal Valves: Choose when all media face extreme conditions (equipped with all-metal seals).

Widely used in fields requiring precise pressure control and reliable vacuum performance, e.g., semiconductor manufacturing, scientific research, and industrial vacuum processes.