The W256 expansion barrel from Victaulic accommodates up to 42 inches of in-line expansion and contraction. The barrel eliminates the need for expansion loops or multiple expansion compensators. Standard Victaulic Style W07 AGS rigid couplings are used to join the barrel to the pipeline. The barrel is made of ductile iron and features redundant engineered seals for long service life. The barrel is available in 24- to 42-inch sizes and accommodates pressures up to 300 psi. 610/559-3300; www.victaulic.com.