Ferrule Fittings are mechanical fittings used to join or connect tubes and pipes in a leak-proof manner, particularly in instrumentation and fluid handling systems. These fittings use a ferrule (ring-shaped component) that compresses around the tubing when tightened, ensuring a secure and sealed connection without the need for welding or threading. Commonly made from stainless steel or brass, they are ideal for high-pressure and high-temperature applications.