METHOD OF ASSEMBLY OF PIPE HEAT INSULATION ANTI-FIRE INSERTS Russian patent published in 2014 - IPC F16L57/04 

FIELD: process engineering.

SUBSTANCE: invention relates to protection against fire propagation over pipe covering and to assembly of anti-fire inserts. Proposed comprises application of antirust protection to overhead pipe weld joint with the help of thermosetting polymer tape. Heat-insulating shells of foam polyurethane are fitted at the joint and coupled by tie tapes with locks. Hot melt adhesion tape is glued to edges of the pipe covering to overlap said shells of foam polyurethane. Protective zinc plated case is arranged in symmetry with weld joint centre to cover weld joint and protective shell over preset distance.

EFFECT: corrosion protection of welded joints using heat-shrinkable polymer tape and installation at the junction of the shell of fire-retardant insulation material protected by galvanised steel casing.

9 cl, 2 dwg, 2 tbl