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One thing that sometimes confuses those new to the industry is the difference between “tubes”, “pipes” and “hose”. The most easily distinguishable of the three is hose, which is generally more pliable and flexible than either tubes or pipes. Both tubes and pipes are rigid, long and cylindrical. What differentiates pipes and tubes is how they are sized. Generally, tubes are sized according to their outer diameter whereas pipes are sized according to their inner diameter. Pisco tube fittings are built specifically to handle the joining of tubes to various pieces of machinery such as Pisco pneumatic equipment, and it is important to know the difference between tubes and pipes so that you can take the right measurements. Tube fittings also come in different types that cater to different applications. Pneumatic applications require fittings to have extremely tight seals, as this prevents any leakage of the gases used to power the equipment. Hydraulic applications, on the other hand, require fittings that are made of corrosion resistant materials due to the constant exposure to fluids. Tube fittings are also differentiated according to the type of connection and their function. Compression Fittings Compression fittings work by means of a gasket, ring or ferrule on the end of the tube where it joins the fitting. Once the tube is inserted into the fitting, a nut is tightened over the gasket, ring or ferrule, thus securing the tube in place. Common compression fittings do not need any special tools to assemble, making this type of fitting the most convenient to put together. Its main problem, however, is that it is not as strong as some other types of fitting, and is therefore not suitable for use in systems that function under very high pressure. End Fittings End fittings allow for specific types of connecting methods. Clamp ends allow for the tubes to be clamped to the connection, while plain ends allow for tubes to be connected using solder, adhesive or other methods. Flange Fittings Flange fittings allow for tubes to be connected to flat surfaces such as walls. One side of the flange fitting allows for the tube to be connected while the other side features a flush surface that is perpendicular to the connected tube. The flush surface of the fitting can then be attached to the wall by means of bolts, clamps or by welding. Threaded Fittings Threaded fittings are relatively simple fittings that feature screw threads, allowing tubes to simply be screwed into place. This makes for extremely convenient assembly, but the connections are not as strong as with other types of fitting. While the seal formed can be reinforced by means of an additional coating or seal tape, this type of fitting is still less suitable for use in very high pressure systems. Choosing The Right Fittings Given the wide range of different types of fittings available, it is important that you know exactly what type of Pisco tube fittings you are in the market for when you look to purchase. Depending on the type of Pisco pneumatic equipment you will be using the fittings with, your choice of fitting will vary and you must be aware of this. Resource Box: Pisco pneumatic equipment and Pisco tube fittings are among the most reliable pneumatic products in the industry, and when you design your system, DAS Services Inc is the store to visit to purchase all of the best pneumatic equipment and parts!
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