at the petroleum industry, rubber specialist Truco now
offers a lightweight
composite hose for
off-loading road tankers, manufactured in standard 100
mm dia and 4500 mm lengths. In addition, Truco is able
to offer the same lightweight hose to meet any required
specification in sizes from 40 mm to 100 mm dia, up to
12 m in length. For a safer operation, the fittings on
both ends of the hose are secured by means of crimping.
The hose comprises of an inner high tensile aluminium
wire helix and an outer galvanised wire helix, with
multiple plies of polypropylene film, woven
polypropylene reinforcing material and a PVC cover
sandwiched between the two. With a bend radius of
approximately 300 mm and a mass per meter of less than 4
kg, the hose has proven its durability and reliability
amongst its heavy weight rubber competitors. The hose
also carries a 4:1 safety factor on its 350 kpa design
operating pressure, which not only meets, but exceeds
the BS 5842 specification for thermoplastic off-loading
For better quality control, the hose is manufactured on a rigid mandrel in 4500 mm lengths and the end crimp fittings are sealed with a nitrile seal.
In addition to a sulphuric acid off-loading hose, Truco manufactures a wide range of thermoplastic composite hose for the chemical industry, including ship to shore bunkering hose with PTFE liners and hoses for conveying solvents such as xylene, toluene and benzene. These composite hoses do not necessarily have to convey aggressive substances, they can be used for potable water or alcoholic / non-alcoholic beverages.
An on-site assessment can be made by a Truco representative as to whether it would be feasible to change current rubber or PVC hose to thermoplastic composite hose, or a general inspection of working hoses to check their condition.