? application:

delayed coking unit is an advanced processing unit in oil refinery industry, delayed coking process is an imptant technology f deep processing of heavy oil residual oil. hydro decoking hose play an imptant role in delayed coking unit by delivering high pressure water to coke block cutting equipment in coke tower.

? stard: hg/t-4788/api spec 7k

? hose structure:

tube: nitrile rubber based liner, wear resistance, acid &alkali resistance, high-temperature resistance ageing resistance

break layers external protection layers: high tension textile fabric

maj reinfcement f withsting pressure: high strength steel cable

cover layer: neoprene rubber based elastomer, fire-proof, wear resistance, oil resistance, ozone & ageing resistance, uv resistance.

? different option of external protection layer are available as request by our recommendation accding to specific operation condition, f example stainless steel armed outer wrap, embedded stainless steel wire in cover, polyethylene spiral guard, etc.

? wking temperature range: class ⅱ , -25 to +100 ℃ (-13of to 212of)

? maximum continuous length: 70m

? length tolerance: length up to 6.4m, with tolerance ± 64 mm; length longer than 6.4m with tolerance ± 1％

? measurement basis of minimum bending radius (mbr) is center line of each hose