Stainless Steel (SS) Instrumentation Fittings are high-precision, leak-proof connectors designed for process control, measurement, and fluid/gas transfer systems in demanding industrial environments. Typically made from SS 316, 304, or alloys, they feature robust, corrosion-resistant designs (often double-ferrule) rated for high pressure (up to 12, 100 psig) and wide temperature ranges. Common types include connectors, tees, unions, and elbows. Key Features and Characteristics Leak-Proof Performance: Engineered to provide gas-tight seals in critical applications, even under vibration or high pressure. Design: Often feature a 'flareless' design composed of four components: body, front ferrule, rear ferrule, and nut. Material: Usually constructed from Stainless Steel 316, 304, or 316L, offering excellent corrosion resistance, Common Types of SS Instrument Fittings Double Ferrule Fittings: The standard for high-pressure, leak-tight connections. Connectors (Male/Female): Connect tubes to different threaded pipe ends (NPT, BSPT, BSPP). Elbows & Tees: Used to change direction or create branch lines in a system. Bulkhead Fittings: Used for mounting fittings through panels or tanks. Tube Inserts: Used to support soft plastic or thin-walled tubing.