Bend Tuff ® from TECHFLOW ® is specially designed wear resistant bends which allows a pneumatic conveying system to reduce maintenance shutdowns, breakage of material and jamming of material in conveying lines. Bend Tuff ® Can replace most standard bends with problem of wear and tear in line, significantly longer service life than standard bends (application-dependent). Wear Resistant Bends are designed for dense phase pneumatic conveying system and dilute phase conveying system where conveying pressures are very high.