Stainless Steel (SS) ferrule fittings are high-precision, leak-proof connectors designed for connecting tubing in instrumentation and process control systems without welding. Available in single or double ferrule designs (commonly 316 or 304 SS), they use a threaded nut and compressed rings (ferrules) to create a durable, vibration-resistant, and high-pressure seal. Key Characteristics and Specifications Components: A standard assembly includes the body, front ferrule (sealing), back ferrule (gripping), and nut. Material: Primarily stainless steel 316 (high corrosion resistance) or 304. Sizes: Wide range, typically from 1/16 to 2 inches (fractional) and 2mm to 38mm (metric). Pressure/Temp Rating: Often rated up to 6000–10000 PSI, depending on size, and effective in temperatures from roughly to . Threads: Available in NPT, BSPT, and BSPP types.