Mechanical seals, use for centrifugal and positive displacement pumps in industrial, process and marine applications.etc. Item NodDLL1L2TM109-18183425194.5TM109-2020362518.55TM109-3030463122.57Mechanical SealsOperating Parameters:1) Temperature: -20 to 80oC 2) pressure: ≤ 0.8 MPA Mechanical seals