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The knockout tool is inserted into the tube and the impact pneumatic hammer is actuated to punch out the tube stub. Tube Installation (Tube Expanders) - Tube Expanding is the art of reducing a tube wall by compressing the outer diameter of the tube against a fixed container such as rolling tubes into tube sheets, drums, ferrules or flanges.
Strandpulling is the general term for the practice of stretching steel springs, rubber cables or latex tubing, as a form of exercise and as a competitive sport, using a "chest expander", with many specific movements designed to target different muscles and provide progressive resistance usually, but not always, to the upper body.
The same fitting can be used in reverse as an eccentric increaser or expander. They are used where the diameter of the pipe on the upstream side of the fitting (i.e. where flow is coming from) is larger than the downstream side, and where there is a danger that vapour may accumulate. [1]
Today's expander heads have a leading end much smaller in diameter than the trailing (bursting) end, small enough to fit through the pipe that will be replaced. The smaller leading end is designed to guide the expander head through the existing pipe; earlier models did not have this feature and lost course at times, resulting in incomplete pipe ...
A pipe wrench is any of several types of wrench that are designed to turn threaded pipe and pipe fittings for assembly (tightening) or disassembly (loosening). The Stillson wrench, or Stillson-pattern wrench, is the usual form of pipe wrench, especially in the US. The Stillson name is that of the original patent holder, who licensed the design ...
Elliott Tool Technologies [1] was founded in September 1892 by an inventor and manufacturer named Gustav Wiedeke in his Dayton, Ohio home. He began designing and manufacturing specialized tools for servicing heat exchangers and water-tube boilers. [2] [3]
In 1920, he applied for a patent for the first so-called flexible metal tube expansion joint, German Reichspatent No. 367 185, from 29 July 1920. From a technical point of view, this precursor of today's expansion joints is a large, pressure-tight flexible metal hose with a defined, restricted freedom of movement.
Pipe expansion joints are necessary in systems that convey high temperature substances such as steam or exhaust gases, or to absorb movement and vibration. A typical joint is a bellows of metal (most commonly stainless steel), plastic (such as PTFE), fabric (such as glass fibre) or an elastomer such as rubber. A bellows is made up of a series ...
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