Tube Expanding is based on engineering principles, involving elasticity and plasticity, to compress the OD of the tube against a fixed container, such as rolling tubes into tube sheets, drums, ferrules or flanges. To assure a proper tube joint, the tube wall must be reduced by a predetermined percentage. The following chart can be used for determining the correct tube wall reduction.
Basic Principles Of Tube Expansion Expanding Tubes In Heat Exchangers, Condensers, & Other Heat Transfer Units Selecting & Setting Up An [...]
Basic Principles Of Tube Expanding Expanding Fire Tube Boilers Firetube boiler tubes consist of an expanded and beaded tube end. [...]
Basic Principles Of Tube Expansion Materials, Tube Leaks, & Pre-Expansion Steps Tubing Material Below are materials and percentages that can [...]
Tube cleaners are vital to the vessels in use at many facilities. It is necessary that vessels be kept on the line in refineries, power plants, nuclear plants, processing plants and other facilities.
Geometry, materials, coatings, and application all influence the performance and life of a cutting blade. In order for it to perform well, it needs to be designed to work in a certain application. Using the incorrect cutting blade will reduce tool life and negatively impact cutting performance.
Materials, manufacturing processes, and engineering principles all influence the quality of a cutter. In order for it to perform in tough applications, it needs to have the right combination of variables. Otherwise, the cutter can fail prematurely or provide inadequate cleaning performance.
Single roll beading expanders simultaneously expand and bead the tube ends in firetube boiler applications. This tool accomplishes the creation of a pressure-tight tube-to-tube sheet joint, and a beaded tube end, by utilizing the natural feed force built into the expander to push the beading roll against the end of the tube while expansion is taking place. The successful operation of these expanders can be achieved by following a few simple steps.
There have been many variations of the tube plug over the years in an effort to achieve maximum sealing area and to control the method in which it is installed. While each of these plugs are still commonly used today, they were designed to overcome various challenges operators have had over the years.
Elliott offers the 445 Series Motors in both roll and lever throttle for tube sizes 2.000” (50.8mm) to 4.000” (101.6mm) to suit your tube expansion needs. The powerful 445 Series Motors are ideal for tough boiler tube applications. The right angle heads are suited for rolling tubes in hard to reach, tight areas.
