| Annular Corrugated Metal Hose |
Formed stainless steel corrugations arranged in annular rings, usually with
304, 321, or 316L stainless steel. One or more external wire braids may be added.
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Chemical processing
Petrochemical
Cryogenic transfer
Gas systems
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Commonly selected from vacuum service to several dozen bar, depending on diameter,
braid layers, corrugation design, and safety factor.
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Metal construction can support very low and high temperatures; many assemblies are
used approximately from −196°C to +550°C when materials, seals, and fittings are suitable.
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Suitable for vibration, thermal expansion, equipment movement, and repeated bending.
Install with the recommended bend radius and without torsion.
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High flexibility, strong pressure resistance, good temperature capability, and
compatibility with many gases and liquids.
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Fatigue life decreases with over-bending, twisting, vibration at the wrong frequency,
or unsupported weight. The braid is not a substitute for correct routing.
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| Helical Corrugated Metal Hose |
Corrugations formed in a helical pattern, generally manufactured from stainless steel
strip or tube with an external stainless steel braid for pressure service.
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Steam
Thermal oil
Industrial gas
General machinery
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Usually selected for low-to-medium and medium-to-high pressure duties, with the
allowable pressure determined by bore size, braid construction, and operating temperature.
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Commonly suitable for hot service when the hose, braid, gasket, and end connections
are rated together. Temperature limits must be confirmed for the complete assembly.
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Effective for axial movement, equipment vibration, and moderate lateral movement.
Useful where a compact flexible connection is required.
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Broad industrial availability, good flexibility, and strong resistance to heat and
corrosion when the correct stainless grade is selected.
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Not intended to compensate for excessive misalignment. Repeated movement should be
controlled by guides, supports, or a calculated hose loop.
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| Stainless Steel Braided PTFE-Lined Hose |
Smooth or convoluted PTFE inner tube covered by one or two layers of stainless steel
wire braid. Common liner choices include virgin PTFE and conductive or modified PTFE.
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Food and beverage
Pharmaceutical
Chemical transfer
Hydraulics
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Often used from low pressure to high pressure, with pressure strongly dependent on
bore size, braid layers, liner type, and fitting design.
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Many PTFE assemblies operate approximately from −60°C to +260°C, but the actual limit
depends on pressure, liner formulation, fittings, and cycling conditions.
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Good for tight routing, pulsation, chemical transfer, and applications requiring a
low-friction or non-stick bore. Avoid sharp bends near fittings.
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Excellent chemical resistance, clean internal surface, low friction, and reduced
permeation compared with many elastomeric liners.
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PTFE can creep under pressure and may be damaged by severe kinking, abrasion, or
rapid pressure and temperature cycling. Verify media compatibility and permeation.
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| Interlocked Stainless Steel Hose |
Flexible interlocked metal strips, commonly stainless steel, sometimes supplied with
packing or an elastomeric seal to reduce leakage.
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Furnace exhaust
Dust extraction
Machine guarding
Low-pressure air
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Generally intended for low-pressure or non-pressure-tight service. It should not be
treated as equivalent to a corrugated pressure hose.
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Often selected for hot air, exhaust, and radiant-heat zones; the practical limit
depends on strip alloy, packing, seals, and movement frequency.
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Useful where flexibility, crush resistance, and external mechanical protection are
more important than fluid-tight pressure containment.
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Strong resistance to crushing, abrasion, sparks, and external mechanical damage.
It can tolerate relatively rough industrial environments.
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Not normally suitable for high-pressure liquids or gases. Leakage may occur through
the interlocked structure unless a suitable sealed design is used.
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| Exhaust Flexible Metal Hose |
Thin-wall corrugated stainless steel tube, often with an outer braid, sleeve, or
protective layer for automotive, engine, and industrial exhaust systems.
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Automotive exhaust
Diesel generators
Marine engines
Industrial engines
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Designed mainly for low-pressure exhaust flow and vibration isolation rather than
high-pressure fluid transport.
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Must be selected for exhaust-gas temperature, thermal cycling, vibration, and
oxidation conditions. The hose surface can become extremely hot in service.
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Install with adequate clearance, independent supports, and allowance for thermal
expansion. Prevent the hose from carrying the weight of the exhaust system.
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Reduces transmission of engine vibration and accommodates thermal movement in
exhaust piping.
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Short service life may result from unsupported weight, severe vibration, condensate
corrosion, thermal shock, or contact with nearby components.
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| Metal Hose with Protective Outer Braid or Armor |
Corrugated stainless steel pressure tube combined with stainless braid and, where
required, an additional armor, guard, or abrasion-resistant cover.
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Outdoor process plants
Mining
Construction equipment
Marine systems
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Pressure capability is based on the corrugated core and braid; armor generally protects
against damage but does not automatically increase the rated working pressure.
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Suitable for hot or cold service when the core, braid, cover, seals, and fittings are
rated for the same temperature range.
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Recommended for exposed routing, abrasive areas, crossing points, and installations
vulnerable to impact or accidental contact.
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Improved abrasion, impact, and environmental protection compared with an unprotected
braided assembly.
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Additional protection can reduce flexibility, increase outside diameter, and make
inspection or bend-radius control more difficult.
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| Sanitary Stainless Steel Flexible Hose |
Smooth-bore 316L stainless steel or PTFE-lined construction with hygienic fittings
such as sanitary clamp, butt-weld, or aseptic-style connections. Internal surfaces
may be polished to a specified roughness.
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Dairy
Beverage
Biotechnology
Pharmaceutical
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Selected according to the sanitary fitting rating, hose bore, braid, pressure,
temperature, and cleaning cycle. Static and dynamic ratings may differ.
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Must withstand the product temperature and cleaning or sterilization cycle, including
hot water, steam, or chemical cleaning where applicable.
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Use self-draining routing, hygienic supports, controlled bend radius, and fittings
that avoid dead legs. Confirm CIP and SIP requirements before purchase.
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Cleanable construction, corrosion resistance, low contamination risk, and compatibility
with hygienic process design.
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Surface finish, gasket material, fitting geometry, and cleaning procedure are critical.
A general industrial hose is not automatically suitable for sanitary service.
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| High-Pressure Stainless Steel Hydraulic Hose |
Typically a small-bore elastomeric or thermoplastic tube reinforced with stainless
steel wire braid or spiral reinforcement; it is not usually a fully metallic hose.
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Hydraulic power units
Mobile equipment
Automation
Heavy machinery
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Common working pressures range from approximately 70 bar to more than 400 bar,
depending on hose construction, bore, temperature, and applicable hydraulic standard.
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Typical hydraulic service may be approximately −40°C to +100°C, but the tube material,
fluid, pressure, and fitting assembly determine the actual limit.
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Use where compact routing and high-pressure movement are required. Protect against
abrasion, maintain minimum bend radius, and prevent hose twisting.
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High pressure-to-size ratio, strong impulse performance, and good flexibility for
moving hydraulic equipment.
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The liner is not stainless steel and may limit chemical or temperature compatibility.
Failure can involve dangerous fluid injection, so inspection and replacement controls are essential.
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