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Hose types, by the job they do

Thirty-nine duties, each written up the same way: what the service does to a hose, what we would fit, what we would not, and what we need to know before we can say either.

Every hose on this site is the same few constructions — corrugated, braided, interlock, PTFE-lined. What changes from one job to the next is the duty, and the duty is what decides the grade, the ends, the length and whether the assembly survives its first year. These pages start from the service rather than the catalogue. Each one says what the duty does to a hose, what we would fit for it, what we would not fit and why, and what we need from you before anyone can size it honestly.

A note on the names. We do not trademark our hoses. A “burner fuel hose” and a “steam hose” may leave the works built from the same corrugated stock — what makes them different is the grade, the end fittings, the derating they were sized on and the tests they were given. Naming them for the job they do is how our customers ask for them, so it is how we list them. It is not a claim that each is a separate product.

Fuel and combustion

Hoses that carry a fuel to a burner, an engine or a tank. Almost none of them fail on pressure — they fail on heat at the fitting and movement at the burner.

Burner Fuel Hose

PNG, CNG, LPG vapour and furnace oil into the burner, on a swinging burner front.

LPG Hose

Vapour and liquid offtake, cylinder banks and bulk tanks, where flashing is the real hazard.

Diesel and HSD Hose

Gensets, day tanks and bowsers — low pressure, constant handling, water and bugs in the fuel.

Bitumen Hose

Hot asphalt at 160 °C and above, where the hose has to be kept hot or it blocks solid.

Gas Manifold Pigtail

Short high-pressure tails from cylinder to header, changed by hand many times a week.

Heat and steam

Duties where temperature, not pressure, sets the rating. Every one of these has to be specified on the derated figure rather than the catalogue figure.

Heat Exchanger Hose

Shell-and-tube and plate connections that have to take the bundle’s thermal growth.

Steam Hose

Saturated and superheated, where pressure and temperature are the same variable.

Thermic Fluid Hose

Hot oil to jacketed reactors and calenders, 250–320 °C, with a fluid that finds every joint.

Jacketed and Traced Hose

A product line inside a heated outer, for media that solidify if they are allowed to cool.

Autoclave and Sterilizer Hose

Steam-in-place at 121–134 °C, cycling several times a day for years.

Furnace and Flue Exhaust Hose

Interlock for hot gas and grit at almost no pressure, to 700–800 °C.

Chemical and process

Here the medium decides everything and the mechanism is usually pitting or stress corrosion cracking rather than pressure. Several of these are PTFE-lined, not bare stainless.

Chlorine Hose

Wet and dry chlorine. Moisture is the switch, not concentration — PTFE-lined only.

Acid Transfer Hose

HCl, sulphuric and nitric. Which acid and which concentration decides whether metal is possible at all.

Caustic Soda Hose

NaOH, where stainless is fine cold and cracks above roughly 60 °C.

Solvent Transfer Hose

Toluene, acetone, MEK and the rest — easy on the metal, dangerous on static.

Ammonia Hose

Refrigeration and process ammonia, where copper alloys are excluded outright.

Hydrogen Hose

Electrolyser, fuel cell and blending duty. Leak tightness and embrittlement, not pressure.

Cryogenic and industrial gas

Very cold or very clean. Contraction, cleanliness and leak tightness set these, and the pressure rating is rarely the constraint.

Cryogenic Hose

LIN, LOX, LAr and LNG. The cold is not the problem — contraction is.

LNG Transfer Hose

Tanker and satellite station transfer at −162 °C, with the whole line moving.

Oxygen Hose

The metal is ordinary; the cleaning is not. Cleanliness is the specification.

Nitrogen and Argon Hose

Blanketing, purging and shielding gas — dryness and no ingress of air.

Vacuum Hose

Rated on collapse and on leak rate, not on working pressure.

Hygienic and high purity

Judged on drainability, surface finish and documentation rather than on pressure. What cannot be cleaned or proved does not belong on these lines.

Sanitary Hose

Food and dairy, tri-clamp ends, crevice-free, drainable, cleaned in place.

Pharma and WFI Hose

Water for injection and SIP duty, with a stated Ra and the paperwork to match.

Brewery and Beverage Hose

Wort, beer and CIP caustic through the same line, several times a week.

High-Purity and Semiconductor Hose

UHP gas and DI water, where particle count and moisture are the rating.

Plant utility and machinery

The everyday duties that make up most of a plant’s hose population. They are simple, which is exactly why they get sized carelessly and fail early.

Pump Connector Hose

Pumps and compressors — two million cycles a day, sized on the flexing bend radius.

Compressor Discharge Hose

Hot, pulsing and oil-carrying, with pulsation rather than pressure doing the damage.

Chilled Water and Cooling Hose

Chillers, jackets and cooling towers, where the water chemistry decides the grade.

Instrument Air Hose

Small bore to actuators and analysers, where a hose is fitted to stop a tube fatiguing.

Vibration Isolator Hose

HVAC and building services — chillers, AHUs and seismic movement joints.

Data-Centre Cooling Hose

CDU and rack manifold connections, decided by chloride chemistry and installed bend radius.

Hot, abrasive and bulk

Interlock territory. Not pressure-tight, never was, and chosen for the fact that it survives heat and grit that would destroy a corrugated hose.

Cement and Powder Conveying Hose

Dry bulk under pneumatic conveying, where abrasion sets the life.

Hot Air and Kiln Hose

Hot air, kiln offtake and cooler ducting, moving on thermal growth.

Foundry and Slag Hose

Radiant heat, splash and grit around the melt floor.

Automotive Exhaust Flex

OEM and Tier-1 decoupling elements between manifold and downpipe.

Transfer and loading

Hoses that are connected, disconnected and dragged. Handling, static and end-fitting security matter more here than anything on the pressure table.

Tanker and Loading Arm Hose

Road and rail, top and bottom loading, and arm-mounted swivel connections.

Drum and IBC Transfer Hose

Short decanting lines, handled by operators, dropped more often than anyone admits.

Anti-Static and Bonded Hose

Flammable and solvent duty where the assembly has to carry charge to earth and be proved to.

If you would rather work from the product end

All products

Corrugated hose, interlock hose, bellows and expansion joints, fittings.

All industries

20 industries and what each one typically runs.

How to specify an assembly

The seven inputs, and why each one changes the answer.

Tell us about the job. We will work out what it needs.

Send the medium, pressure, temperature, movement and end connections — or just describe the problem. You get back a specified assembly and a drawing, and a price once the specification is settled.

Talk to an engineer What we need to quote