Control Valve Manifold

The Control Valve Manifold is a critical component of the Leak Testing Module. It consolidates multiple control valves into a single manifold block, enabling precise routing, isolation, and regulation of test media (air, gas, or liquid) to and from the test specimen during leak detection procedures. This component is designed for use in machinery and equipment manufacturing, particularly in automated leak testing systems where reliable and repeatable flow control is essential. The manifold is typically constructed from stainless steel (e.g., 316L) or aluminum alloy, with PTFE seals and gaskets for compatibility with various test media. It features multiple ports (configurable from 2 to 8) with port sizes ranging from 1/4 to 1 inch (NPT or BSP threads). The operating pressure range is 1.0–1.6 MPa, with a note that The flow coefficient (Cv) ranges from 0.2 to 5.0, allowing for faster filling when higher Cv values are selected. The leakage rate is ≤0.01 sccm at rated pressure, ensuring minimal media loss. Response time is ≤50 ms from signal to full open, and the operating temperature range is -20 to 80°C, with seals degrading above 80°C. Electrical specifications include a 24 V DC supply (±10%) for solenoid pilot valves, with power consumption ≤8 W per solenoid. The electrical connection is a 4-pin M12×1 connector per IEC 61076-2-101. Ingress protection ranges from IP54 to IP65, with IP65 suitable for washdown environments. The body material is 316L stainless steel (ASTM A276) for corrosion resistance, and seal material is FKM (ASTM D2000) for compatibility with test media. Weight varies from 1.5 to 4.5 kg depending on port count. This component is a directory reference; model-specific values and standards must be verified with the legal manufacturer or supplier before procurement or use.

The Control Valve Manifold operates by using individual solenoid or pneumatic valves mounted on a common manifold body. A central controller actuates specific valves to open or close flow paths, directing the test medium through the system for pressurization, stabilization, and measurement phases of the leak test cycle. The manifold design consolidates multiple valves into a single block, reducing potential leak points and simplifying plumbing. Each valve is independently controlled, allowing for precise routing of media to different test circuits. The central controller sequences the valve operations based on the test program, ensuring that the correct flow paths are established at each phase. This enables accurate control of pressure, flow, and timing, which are critical for reliable leak detection results.