F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L51/00—Expansion-compensation arrangements for pipe-lines
F16L51/02—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube
F16L51/025—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations
F16L51/027—Expansion-compensation arrangements for pipe-lines making use of a bellows or an expansible folded or corrugated tube with several corrugations with external reinforcement
Dispositif de production de chaleur par circulation d'un fluide sous pression à travers une pluralité de tubulures, et système thermodynamique mettant en oeuvre un tel dispositif
Procede pour la fabrication d'une surface de chauffe d'une chaudiere exempte de condensation d'eau, composee d'une enveloppe interieure et d'une enveloppe exterieure, et surface de chauffe fabriquee par ce procede