Allows For Thermal Expansion
Sandwiched between the inner and outer pipes, knitted mesh spacer rings allow a constant gap to be maintained even with thermal expansion caused by temperature changes within the exhaust system. Knitted mesh spacer rings also act as extremely effective vibration dampers, protecting exhaust components, due to the tiny springs that are formed by the looped wires created during the knitting process.Material Options
Knitted mesh spacer rings are normally produced from grade 304 or 316 stainless steel. Other higher temperature grades, such as 321, 309, 310 and 310S, may also be used. For temperatures exceeding 1000°C, Inconel* 601 is also available.For better shape definition, a sleeve of knitted wire mesh can also be placed around the outside of the wool packing.