... Steel, Stainless steel Size: 16, 25, 50, 76, 100mm Application: Vacuum rectifying towers Longevity Service Metal Pall ring is one of the ... and only has half of pressure drop compared with Raschig ring.Metal Pall Ring Features:Pall ring has some advantages such ... of materials such as stainless steel, carbon steel, aluminum, bronze, 304L, 316L, and other alloy etc.Technical data of metal pall ring: ...