Every Jetpac® assembly is built on the same construction: integrally fire-resistant rubber, reinforced for shock and vibration, bonded to fittings machined in the alloy your system demands. One construction, qualified to Def Stan 02-345 and type approved, carrying the same material across sea water, fuel, hydraulic and lubricating oils and water systems, so the qualification travels with every configuration you order.
Four families cover the range, from very small bore to very large and from very low pressure to very high, with a bespoke service for the shape a catalogue cannot meet. Around 7,000 to 8,000 straight-hose configurations are already on file.
In service on every class of Royal Navy ship and submarine, and exported to navies worldwide. Designed and made in Chichester, England.
Pick the family by what the run has to do. Straight, turning, expanding or carrying air. If the run does none of those cleanly, it is bespoke, and we design it.
For the runs that go from A to B. Straight hose assemblies built to your length and end fittings, from the small-bore, high-pressure lines on HP air, hydraulics and steering gear to the large-bore runs on fuel, cooling, ballast and bilge. Around 7,000 to 8,000 configurations are already on file, so the standard answer usually exists. If it does not, we build it. By-pass valves and suction entry feet are described on the same page.
For the runs that turn, climb or double back. One family at any angle from 0° to 180°, with leg lengths set by your pipework layout and movement in all three planes. The preform takes the corner without a fabricated elbow, and the reversal without a second joint, in one integrally fire-resistant piece. 1" to 14" (25 to 350 mm) bore.
For the connections that expand and shake. Expansion and vibration isolation at machinery and pipework connections, in a unit that is its own fire protection and its own restraint. No restraining rings. No fire guards. One part where the metallic joint needs a kit, so less weight and less time when the system is opened. 1¼" to 14" (32 to 350 mm) nominal. About 100 variants.
For the air. Flexible ducting for ventilation and fume systems that have to move with the machinery and still perform in a fire. Shapes, sizes and materials to the installation.
Fire-resistant rubber, integrally. The material itself survives the fire test while carrying fluid under pressure, so no fire guard is fitted and no restraining ring is needed. Reinforced for shock and vibration. Bonded to end fittings machined in our own workshop in copper-nickel 70/30 or 90/10, nickel aluminium bronze, phosphor bronze or super-austenitic stainless steel, as the fluid and the system demand.
UK MOD Def Stan 02-345: 15 minutes at 1,100°C while pressurised and vibrated. Shock and vibration tested to MIL and NATO standards, by our customers and by UK MOD(N) in their own facilities. Type approved by Lloyd's Register, DNV, ABS and Germanischer Lloyd, and approved by the MOD. Designed, manufactured and tested under BS EN ISO 9001:2015. Material ageing, fluid resistance, smoke and toxicity verified independently through RAPRA.
One material family across sea water; Dieso F-76 and AVCAT F-44; hydraulic oils OX30 and OX33; aqueous polyglycol OX40; lubricating oils OM100, OMD113 and OEP80; distilled, fresh, potable and chilled water. 200°C continuous, 250°C intermittent. One compound, one qualification file, across the systems on board.
Bore from ¼" to 23" nominal across the range. Small-bore assemblies, ½" to 2" (12 to 50 mm), tested to 200 bar (2,900 psi). Large-bore assemblies, 2" to 12" (50 to 300 mm), to 50 bar (725 psi). Those are the test figures at the ends of the range, not its limits: the range runs from very low pressure to very high, and the shape is set by your installation. Send us the fluid, pressure, temperature, bore, movement and space, and we confirm feasibility and the standard we would qualify to.
Jetpac® assemblies carry a service periodicity of five, ten or fifteen years according to the application, established with UK MOD(N). To our knowledge, there has never been a failure in operation of a Jetpac® product. More than forty years supplying UK MOD(N). Jetrac, Oldham Seals' field division, surveys, tags and registers every hose on board and forecasts replacement before it falls due.
Connectors to BS, ISO, ASTM or ANSI, as specified. Every assembly hydrostatically pressure tested before it leaves Chichester, and released with full certification. Independent chemical and mechanical certification of non-ferrous fittings available. 2D and 3D CAD in-house; 3D models supplied on request. Manufacturing tolerances advised per installation, in writing.
The four families cover most of what goes on board. The rest is designed. Send the drawing, or the envelope, and our engineers model the preform geometry and leg lengths to your pipework, select the alloy for the fittings, machine them in-house and qualify the assembly to the standard you specify. From ¼" to 23" nominal bore. Much of our work has been won on this ability to design.
Datasheets and drawings are available for every family. Use the datasheet lane on the Discuss your application form, name the product and the application, and the sales team sends the pack.
The surface-ship and submarine pages map the applications by compartment on a generic vessel. No class is named.
A straight hose assembly for a run that goes from A to B and needs its length and end fittings set. A preformed assembly for a run that turns, climbs or doubles back, at any angle from 0° to 180°. Bellows where the system expands or shakes at a machinery or pipework connection. Ducting for air and fumes. If the run does not fit one of those, it is bespoke, and we design it.
No. The rubber is integrally fire-resistant and the assembly is tested to Def Stan 02-345 while pressurised and vibrated, so no fire guard is fitted. Jetpac® bellows need no restraining rings. That is where the weight saving over metallic pipework comes from.
From ¼" to 23" nominal bore across the range. Small-bore assemblies are tested to 200 bar (2,900 psi), large-bore to 50 bar (725 psi). Those figures are the ends of the test envelope, not the limits of the range, which runs from very low pressure to very high. Send the envelope rather than ruling yourself out.
Service periodicity is five, ten or fifteen years according to the application, established with UK MOD(N). Jetrac records the installation date of every hose in its register and forecasts the replacement before it falls due.
Sea water, Dieso F-76, AVCAT F-44, OX30, OX33 and OX40, OM100, OMD113 and OEP80, and distilled, fresh, potable and chilled water, on one material family, at 200°C continuous and 250°C intermittent.
Yes. That is most of what we do. Send the drawing or the envelope. Preform geometry and leg lengths are modelled in 2D and 3D CAD to your pipework, and fittings are machined in-house in the alloy the fluid demands.
Use the Request a datasheet lane on the Discuss your application form and name the product and the application.
Send us the fluid, pressure, temperature, movement and space you are working with, and a drawing if you have one. We tell you whether a standard configuration already covers it or the assembly needs designing, and the standard we would qualify it to. Our sales team routes it to the right engineer. Your platform stays confidential: we do not publish what we build for you.