Application-Specific Fastening for Pneumatic Valve Assemblies
The Festo VAME-XA-Z-170 tie rod (manufacturer ID 8191766) is a purpose-built fastening component for pneumatic valve systems that demand precise, repeatable clamping force. With a length of 170 mm and a nominal tightening torque of 1.4 Nm (tolerance ± 15%), this tie rod is engineered for applications where consistent mechanical tension is critical to valve performance and leak-free operation. Its high-alloy stainless steel construction provides the corrosion resistance required in moderate stress environments, as classified by corrosion resistance class (CRC) 2.
For engineers integrating valve manifolds or custom pneumatic circuits, the VAME-XA-Z-170 offers a straightforward mounting solution: an internal hexagon AF 4 with both external and internal M4 threads. This dual-thread design simplifies assembly and allows for flexible orientation, reducing installation time and the risk of cross-threading. The tie rod's pack size of 3 ensures that replacement or new builds have a ready supply without excessive inventory.
Material and Compliance Considerations for Harsh Environments
When specifying components for industrial environments, material integrity and regulatory compliance are non-negotiable. The VAME-XA-Z-170 is made from high-alloy stainless steel, which delivers excellent mechanical strength and resistance to corrosion under moderate stress conditions (CRC 2). This makes it suitable for applications in humid or mildly aggressive atmospheres, such as those found in food processing, packaging, or chemical handling plants.
The tie rod is also LABS (PWIS) conformant to VDMA24364-B1/B2-L, ensuring it is free from substances that could cause paint wetting impairment. This is a critical requirement in automotive paint shops and other coating facilities where silicone contamination can lead to costly surface defects. Additionally, the product is RoHS-compliant, aligning with environmental directives that restrict hazardous substances. For procurement teams, these certifications reduce the need for additional testing and documentation, streamlining the approval process.
Precision Torque Control for Reliable Operation
One of the standout features of the VAME-XA-Z-170 is its defined nominal tightening torque of 1.4 Nm with a tolerance of ± 15%. This specification allows engineers to calculate the exact clamping force required for their valve stack, ensuring that seals are compressed uniformly and that the assembly remains stable under vibration and thermal cycling. Over-tightening can distort valve bodies or damage seals, while under-tightening risks leaks—both are avoided with this tie rod's predictable torque characteristics.
For maintenance teams, the internal hexagon AF 4 drive provides a secure interface for standard tools, enabling quick and repeatable adjustments. The product weight of 106.8 g is modest, contributing to overall system weight reduction without compromising strength. This balance of precision and durability makes the VAME-XA-Z-170 a reliable choice for both OEM designs and retrofit projects.
Integration Value and Long-Term Reliability
Choosing the right tie rod is not just about meeting dimensional specs; it's about ensuring long-term system uptime. The VAME-XA-Z-170's corrosion resistance and material quality minimize the risk of galling or seizing, even in environments with moderate humidity or chemical exposure. Its compliance with VDMA24364-B1/B2-L and RoHS standards also future-proofs your equipment against evolving regulatory requirements.
From a procurement perspective, the Festo brand ensures traceability and consistent quality, backed by a global supply chain. The pack size of 3 simplifies inventory management, while the standardized mounting type (AF 4, M4 threads) reduces the need for multiple fastener types. Whether you are designing a new pneumatic control system or maintaining an existing one, the VAME-XA-Z-170 delivers the mechanical reliability and compliance needed to keep operations running smoothly.