Tuffclassified

To produce a leak-free connection between hydraulic components, Code 61 flanges are utilised in conjunction with O-ring seals. They come in a variety of diameters and pressure ratings to satisfy the demands of various hydraulic applications. The flange is divided into two pieces, each with a flat face that matches with the other. When the bolts are tightened, an O-ring compresses between the two flat faces and seals the connection.