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Introduction Brennan's Double-Ferrule Compression Tube Fittings provide leak-proof, torque-free seals at all tubing connections. They eliminate potentially hazardous and expensive leaks in instrumentation, process, pneumatic, hydraulic, gas and other tubing systems. The basic Double-Ferrule Tube Fitting is a four-piece fitting consisting of the nut, back ferrule, front ferrule and the body. When installed, it becomes a five-piece connection with the addition of the tubing to provide a solid leak-free joint. The two ferrules grasp tightly around the tube with no damage to the tube wall. Exhaustive tests have proved that the tubing will yield before a Brennan Double-Ferrule joint starts leaking. The secret behind the success of the Brennan Double-Ferrule Tube Fitting lies in the two-ferrule design, which combines geometry and metallurgy. All action in the fitting is an axial movement along the tube instead of a rotary motion to create the joint. This axial movement prevents transmis- sion of any torque from a fitting to the tubing. Since there is no initial strain in the tubing, the making of the joint does not weaken the tubing. Another advantage of the Brennan Double-Ferrule Tube Fitting is that the swaging action of the twin ferrules overcomes variations in tubing wall thickness, hardness and dimensional tolerance. Brennan's Double-Ferrule Tube Fittings are easy to install and require no special tools. They are reusable several times and can withstand heavy impulse and vibration in both vacuum and pressure systems. Brennan Double-Ferrule Compression Tube Fitting Features: � Self-aligning � Work on thick and thin wall tubing � Resist vibration � Work on a variety of tube materials � All components are made of the same material for thermal compatibility and corrosion resistance � Resist temperature cycling � Compensate for the variables encountered in the tube and materials � Do not significantly reduce flow area Performance � Work in vacuums, as well as at low and high pressures � Seal at low cryogenic temperatures, as well as elevated temperatures rated for the tube � Seal consistently over a wide range of temperature cycling � Seal repeatedly under both make and remake conditions � Resist pressure beyond the tubing burst point Assembly � Use geometry rather than torque for uniformity of make-up. (To com- plete the joint, it requires only a 1-1/4 turn after snug-tightening.) � Do not require disassembly and inspection of ferrule swaging at every make-up � Do not require any special tools for assembly Service Brennan's Double-Ferrule Tube Fittings are available in a wide range of materials, sizes, connections and configurations from our local distribu- tors and supported by substantial inventories at our distribution centers. B R E N N A N I N D U S T R I E S Atlanta�Cleveland�Dallas�LosAngeles�Seattle
Goodyear Rubber Products
