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Name: H fin tube, also know as Doulbe H finned tube, H fin economizer, H fin tube economizer, H type finned tube, square fin tube. It is a kind of boiler parts, tohave two steel circular symmetryto be welded onfluorescent tubes to form fins positive shap muchlike letter"H", so called H-fin tube. H-economizer widely used in utility boilers, industrial boilers, marine power, such as the tail of heat exchanger component. Principle: H-economizer two rectangular fin, similar to a square, its edge length for the fluorescent tubes of 2-fold, an expansion of the heating surface.H-economizer flash resistance welding processes used, the welding seam after the high rate of fusion, weld tensile strength, and has good thermal conductivity. H-economizer can also manufacture dual tube "double H" type fin tubes, its rigid structure, and can be applied to a longer tube row occasions. Performance characteristics: (1) Excellent anti-wear performance (2) Less fouling (3) Compact space (4) Welded Joints less (5) Stability Supplying Scope: Fin tube Specification:Chinese GB standard or equivalent ASMEstandard or others; Material: carbon steel, stainless steel,Aluminiumand alloy steel; Bare tube size:OD20mm-OD273mm; Fins Pitch: 3mm-30mm; Fins Height: 10mm-30mm; Fin thickness:1-10mm; Othersizesof the finned tube can be discused withcustomers' requirements.Welcome to contact us.