dualvalves

Dualvalves refer to valve assemblies that integrate two valve elements within a single housing. Each element controls a separate fluid path or provides alternate routing for the same fluid. Depending on design, the valves can be arranged in series to regulate a single circuit, in parallel to alternate between two outlets, or in a shared-manifold arrangement to isolate or connect multiple lines. Actuation is typically electric (solenoids or motors), pneumatic, or hydraulic, and control logic may coordinate the two elements for sequencing, interlock, or fail-safe behavior.

Common configurations include two isolated valves in a common body with a shared actuator, and two closely coupled valves in a manifold that allows rapid switching between lines. Dualvalves are used in industrial automation, process control, aerospace, automotive systems, and laboratory instrumentation to save space, reduce external leak paths, and enable rapid or synchronized switching between two circuits.

Advantages of dualvalves include compactness, potential for reduced leakage compared with two separate valves, simplified piping, and the ability to implement redundant or fail-safe paths. Limitations include higher unit cost, greater complexity, potential cross-talk or cross-contamination between channels if seals fail, and the need for compatible actuators and control electronics.

See also: valve, solenoid valve, pneumatic valve, hydraulic valve, valve manifold, redundancy in control systems.