GASKET FOR STATIONARY JOINTS Russian patent published in 2003 - IPC

FIELD: power machine engineering, possibly fittings operating in conditions of high pressure and temperature values of heat transfer agent of thermal and nuclear power plants and also fittings of other type apparatuses operating at high parameters of working fluids. SUBSTANCE: gasket of stationary joints of adjusting pipeline fitting includes helically wound metallic band with compressible member designed for fixing axial displacement of helical layers. At least two inner and two outer layers of band are crimped by bandages; band has width corresponding to thickness of gasket in its working state and being less than width of mean layers of band helix. At least between terminal layers of mean layers graphite filler is arranged. At least two layers of band between mean and inner and between mean and outer layers have width whose value is less than width of mean layers and larger than width of outer and inner layers of helix. EFFECT: enhanced reliability of joint. 4 cl, 3 dwg