By preventing impact with the elbow wall, HammerTek’s Smart Elbow® deflection elbow is said to prevent material degradation and the generation of fines.
The cast aluminium line of Smart Elbow® deflection elbows from HammerTek® is now offered in tube and pipe sizes from 3.8 cm up to 30.5 cm in diameter. Engineered for dilute-phase and dense-phase pneumatic conveying, the deflection elbows prevent material from impacting the elbow wall, eliminating or minimising breakage and the generation of fines when conveying friable materials such as chips, flakes, corn, seeds, sugar, salt, cocoa nibs and pet food pellets. According to the company, material build-up and plugging due to frictional heat is also eliminated when conveying heat-sensitive materials such as sugar, flour, spice/seasoning mixes, ground coffee, dried milk and cocoa powder.
The elbows feature a spherical chamber that protrudes partially beyond the desired 90º or 45º pathway, which causes a ball of material suspended in air to rotate, gently deflecting incoming product around the bend without impacting the elbow wall or generating heat.
Other deflection elbows, offered in varying size ranges up to 45.7 cm, are available in cast iron, carbon steel, stainless steel and specialised alloys, which additionally prevent elbow wear when conveying sharp, hard materials such as salt, rice hulls, corn meal, soy beans, cocoa bean hulls, hops, barley, cocoa nibs, corn, tobacco leaves, wheat, oats, nut shells, wood chips, hog fuel and other abrasives.
According to the manufacturer, conventional sweep elbows and “plugged tee” elbows are typically replaced with deflection elbows to eliminate the cost of elbow replacements, ensure product quality, allow directional changes in restricted spaces and prevent unscheduled system shutdowns due to elbow maintenance or repair.