Purpose and Role in Pneumatic Valve Assemblies
The Festo VAME-XA-Z-29 tie rod (manufacturer ID 8191757) is a fastening element designed for pneumatic valve assemblies that require a defined, repeatable clamping force. With a length of 29 mm and a nominal tightening torque of 1.4 Nm (tolerance ± 15%), it is suited for applications where precise force transmission is critical to maintaining valve integrity and performance. The tie rod is made of high-alloy stainless steel, which provides strength and durability in demanding industrial environments.
Material and Corrosion Resistance
The VAME-XA-Z-29 is classified with corrosion resistance class (CRC) 2, meaning it can withstand moderate corrosion stress. This makes it appropriate for environments with occasional exposure to moisture or mild chemicals, such as assembly lines, packaging machinery, or automotive plants. The high-alloy stainless steel construction ensures long-term reliability without the need for frequent replacement. Additionally, the product is RoHS-compliant, supporting sustainability and regulatory requirements in modern manufacturing.
Standards Compliance and Cleanliness
For industries that handle sensitive materials—such as electronics, food processing, or pharmaceutical production—the VAME-XA-Z-29 conforms to LABS (PWIS) and VDMA24364-B1/B2-L standards. This conformity ensures that the tie rod does not release substances that could contaminate painted surfaces or interfere with downstream processes. Engineers and procurement teams can specify this component with confidence in clean-room or low-emission applications, reducing the risk of quality issues.
Mounting and Integration Details
The tie rod features a dual-thread design: an external M4 thread and an internal M4 thread, with an internal hexagon (AF 4) for installation. This allows flexible mounting options, either by threading into a mating component or by using the internal thread for additional fastening. The product weight is only 15 g, and the pack size is 3, which simplifies handling and inventory management. The compact 29 mm length makes it suitable for space-constrained valve manifolds, where precise alignment and secure fastening are essential.
Selection Considerations for Engineers and Buyers
When selecting the VAME-XA-Z-29, verify that the required tightening torque of 1.4 Nm aligns with your assembly process. The ± 15% tolerance means that actual torque may vary between 1.19 and 1.61 Nm, so ensure your torque tools are calibrated accordingly. The CRC 2 rating indicates that this tie rod is not intended for highly corrosive environments, such as offshore or chemical processing; for those, a higher CRC class would be necessary. Also, confirm that the M4 threads match your valve components, and note that the tie rod is sold in packs of 3, which may influence ordering quantities.
In summary, the Festo VAME-XA-Z-29 offers a balance of precision, corrosion resistance, and standards compliance, making it a practical choice for pneumatic systems that demand reliable fastening without compromising cleanliness or performance.