Metal Hose Assemblies

Metal Steel Hose Assemblies

Available as convoluted bore metal hose with an assortment of stainless steel grades, covers, couplings and end terminations, these metal hose assemblies are ideally suited for gas supply and transfer of steam, chemicals, food processing media, hot water systems, cryogenics and full vacuum applications. Flextech’s metallic hose assemblies are designed and manufactured in line with ISO10380, the current international standard for corrugated metal hoses and hose assemblies, and certain products in the range can be rated for up to 50,000 flex cycles depending on design and duty.​

Typically, Flextech’s full stainless steel braided hose assemblies consist of an AISI 321 or 316 grade liner within a 304 or 316 grade stainless steel braid. This metal braided construction can be reinforced as a double or even triple braid for enhanced protection or covered in silicone, EPDM, a fire sleeve or flexible insulative material, depending on the hose assembly duty and installation. Internal dimensions for Flextech’s metallic hose range from narrow 6 mm hose diameter to large bore 250 mm diameters, allowing engineers to match hose and pipe sizes accurately. Across the range, pressure capabilities extend from lower pressure options through to products with burst pressures approaching 880 bar, with the exact working and burst pressures determined by the specific hose type, size, braid configuration and required bend radius.​

Typical applications of Flextech’s metallic hoses include:

• High temperature hydraulic oils in machinery, vehicles and engineering where metallic hose is preferred over rubber hydraulic hose in extreme environments
• Steam, chemicals and petroleum products used in manufacturing, construction and energy where steel hose offers a non‑permeable, fire‑resistant solution
• Corrosive liquids and gases in the chemical and medical industries, using stainless steel hoses and compatible metallic hose fittings to maximise service life
• Compressed air and pneumatic lines where flexible hose assemblies reduce vibration transfer and simplify routing
• Cryogenic applications requiring stainless steel metal hose with excellent low‑temperature performance
• Food and beverage production, where hygienic hose assemblies, stainless steel couplings and fittings support cleanability and compliance
• Nuclear plants and steam lines that demand robust stainless steel braided hose with reliable valves and hardware
• Fluids associated with high temperature and pressure in paper and fabric plants and other specialist processing environments
• Specialist manufacturing including tyre moulds and textile machinery, where flexible steel hoses must cope with repetitive movement and dynamic bend radius
• Oil refineries and drilling rigs or platforms, where metallic hose assemblies connect fixed pipe to moving equipment
• Toxic and corrosive applications where metallic hose, pipework and associated valves must maintain integrity under challenging conditions.​

Key features of Flextech’s metallic hose assemblies include:

• Excellent chemical compatibility across a wide range of industrial media
• Excellent temperature range for both high and low temperature service
• Non‑permeable hose construction to help protect product quality
• Ability to retain shape under full vacuum without hose collapse
• Flexible metal hose design that accommodates movement, vibration and thermal expansion when installed within the recommended bend radius
• Wide choice of hose fittings, couplings and valves to integrate with existing metallic hose, pipe and equipment connections.​

The general rule of thumb is to use a metallic hose when no other hose type will do. Flexible metal hose assemblies perform well in applications with extreme conditions or variables such as temperature extremes, diverse chemical compatibility, concerns around liquid permeation, or where a compact bend radius is needed without compromising safety. When correctly specified from the appropriate Flextech product family, metal hose matched with suitable couplings, fittings and valves provides a robust solution where traditional rubber or thermoplastic hoses would not be suitable.