Purpose and Design
The Festo VAME-XA-Z-42 tie rod (manufacturer ID 8191759) is a replacement or spare part engineered for pneumatic valve assemblies that require precise mechanical alignment and secure fastening. With a length of 42 mm and a pack size of 3, this component is supplied in practical quantities for maintenance or setup tasks. The tie rod is manufactured from high-alloy stainless steel, which contributes to its durability and resistance to wear in industrial settings. Its design includes an internal hexagon AF 4 with both external and internal M4 threads, enabling versatile mounting options that suit common valve configurations.
Corrosion Resistance and Material Compliance
Rated with corrosion resistance class (CRC) 2, the VAME-XA-Z-42 is suitable for environments with moderate corrosion stress. This makes it a reliable choice for applications where exposure to humidity or mild chemicals is expected but not severe. The high-alloy stainless steel construction ensures that the tie rod maintains its structural integrity over time, reducing the frequency of replacements. Additionally, the product is RoHS-compliant, confirming that it meets current environmental standards for hazardous substance restrictions. This compliance is an important consideration for companies with sustainability or regulatory requirements.
Standards and Precision
The tie rod conforms to LABS (PWIS) and VDMA24364-B1/B2-L standards, which are critical for applications in paint, adhesive, and sealant industries. These standards ensure that the component does not release silicone or other substances that could contaminate surfaces, making it suitable for use in sensitive production lines. The precise manufacturing tolerances of the VAME-XA-Z-42 contribute to consistent operation, ensuring that valve assemblies maintain accurate movement and sealing performance. For engineers designing or maintaining automated systems, this level of precision is essential to avoid downtime and ensure repeatable processes.
Installation and Torque Specifications
Proper installation is facilitated by the nominal tightening torque of 1.4 Nm, with a tolerance of ± 15%. This specification allows for controlled and repeatable fastening, preventing over-tightening that could damage threads or under-tightening that could lead to loosening during operation. The internal hexagon AF 4 provides a secure grip for standard tools, simplifying assembly and maintenance procedures. The product weight of 21 g is minimal, which is advantageous for applications where weight reduction is a priority, such as in moving parts of automated machinery.
Practical Applications and Benefits
The VAME-XA-Z-42 is particularly well-suited for use in valve terminals, process automation, and handling systems where moderate corrosion resistance and high precision are required. Its compliance with industry standards makes it a dependable choice for manufacturers that must adhere to strict quality and safety guidelines. By using a genuine Festo tie rod, maintenance teams can ensure compatibility and performance, reducing the risk of premature failure. The pack size of 3 also offers a practical balance between inventory management and availability, supporting efficient maintenance schedules without excessive stock.

