A barbed fitting is a simple and reliable means of connecting tubes and hoses. They are particularly suitable for low-pressure fluids (between 100 and 120 psi) and soft tubing. The barbs grip on to the inside circumference of the tube and provide resistance to its removal. They can impact the overall effectiveness of a connection, so below are some pointers for selecting a fitting.
Type of fitting
There are many ways to connect flexible tubing: elbow connectors, tees, four-way tees, Y-connectors, and so on. The chosen type of fitting will depend on the tubing system created: users can select the connectors they need to replicate their project's layout. The diameter of the fitting will need to be compatible with the soft tubing used.
Fittings can have many different kinds of barbs, from one barb to multiple, at various slopes and with different widths. Connectors with the most barbs aren't always the best choice, as some kinds of soft tubing close over the barb and seal fully against the smooth part of the fitting. Stiffer types of tubes might require more barbs, as they won't close around them as well. Fittings also usually have an upper limit to the pressure they can withstand, after which their barbs don't hold on so well.
Barbed fittings are made out of a wide range of materials, from nylon to PVC to brass, all with their own specific uses and advantages. Materials like stainless steel have benefits in corrosion resistance and durability, while thermoplastics like nylon are chemically inert and can handle high temperatures and sudden shocks. The barbs on metal fittings are also sharper than plastic ones, leading to leaks or tearing if used with extra soft tubing. In plastics, meanwhile, molding lines can pose the risk of leaks occurring. This can be a problem if the system is transporting something of high value.
Categories Simillar to Barbed Fittings includes Quick Connect Fittings, Sanitary Fittings and Tube Fittings