Overview and Core Specifications
The Festo VSVA-BK-M52-AD-D1-1B2 (MPN 8166593) is a 5/2-way monostable solenoid valve designed for precise and reliable pneumatic control in industrial automation. With a width of 38 mm and a valve size of 42 mm, it offers a compact footprint suitable for tight machine layouts. The valve delivers a standard nominal flow rate of 1200 l/min and a pneumatic valve flow rate of 1342 l/min, ensuring efficient handling of compressed air for a wide range of actuators. Its operating pressure range of 3 to 8 bar and a nominal width of 6.3 mm make it versatile for medium-duty applications. The valve operates on 24 V DC with a coil power of 3.3 W and features a 100% duty cycle, allowing continuous operation without derating.
Construction and Integration Benefits
The VSVA-BK-M52-AD-D1-1B2 employs a piston slide with sealing ring design and soft sealing principle, providing dependable sealing and smooth switching. The housing and piston slide are made of wrought aluminum alloy, while seals are HNBR/NBR, ensuring compatibility with standard compressed air per ISO 8573-1:2010 [7:4:4]. The valve is pilot-controlled with internal pilot air supply, simplifying installation by eliminating the need for external pilot lines. It mounts on a sub-base with pneumatic connections conforming to ISO 5599-1, size 1, which enables standardized manifold assembly and quick replacement. The electrical connection uses Form B (11 mm) per industrial standards, and with a plug socket, the valve achieves IP65 protection, making it suitable for environments with dust and water spray. The manual override offers both detenting and non-detenting options, providing flexibility during setup and troubleshooting.
Performance and Switching Characteristics
This valve is engineered for fast and consistent response. The on switching time is 17.3 ms, and the off switching time is 20.7 ms, enabling rapid cycle rates in high-speed automation. The b-value of 0.26 and C value of 5.87 l/s·bar indicate efficient flow characteristics, while the underlap lap design helps minimize pressure buildup during switching. The valve supports a maximum positive test pulse of 2500 μs on a 0 signal and a maximum negative test pulse of 1100 μs on a 1 signal, which is critical for diagnostic and safety circuits. The reset method uses a pneumatic spring, ensuring a fail-safe return to the home position when power is removed, enhancing operational safety.
Environmental and Durability Considerations
Designed for industrial environments, the VSVA-BK-M52-AD-D1-1B2 operates within an ambient and medium temperature range of -5°C to 50°C. It has been tested for vibration resistance per FN 942017-4 and EN 60068-2-6, and shock resistance per FN 942017-5 and EN 60068-2-27, with severity level 2, ensuring robustness during transport and operation. The corrosion resistance class is 1 (low corrosion stress), and the valve conforms to VDMA24364 zone III for LABS (PWIS) conformity, making it suitable for use in paint and coating applications where silicone-free materials are required. The product is RoHS-compliant, and the screws are made of galvanized steel for added corrosion protection.
Selection and Application Guidance
When integrating this valve, consider its non-reversible flow direction and the need for a sub-base with ISO 5599-1 size 1 ports. The valve is not ducted for venting, so exhaust air must be managed through the sub-base. The exhaust air function includes a flow control option, allowing adjustment of cylinder speed. The valve's mounting position is any, offering flexibility in machine design. With a product weight of 321 g and a maximum tightening torque of 5 Nm for mounting, it is easy to handle and install. The valve is suitable for a variety of pneumatic actuation tasks, including cylinder control, clamping, and material handling, where its high flow rate and fast switching enhance productivity. For applications requiring signal status display, an accessory is available, but it is not included with the valve.