CompositeHoseFittings

TABLE OF CONTENTS

TESTING & MAINTENANCE

• • • • • • HANDLING • • • • • • Never use a rope to support a composite hose as the rope may displace the wire helix. Always use hose slings or supports to spread the load on the hose surface. • • • • • • CLEANING • • • • • • Composite hoses should be cleaned after use and before testing. The method used will depend upon service and hose type. The maximum working temperature of the hose should not be exceeded, and steam lances should not be used. Composite hoses should be electrically grounded during cleaning. • • • • • • STORAGE • • • • • • After service, composite hoses should be flushed and drained. Ideally, hoses not in use will be stored off the ground in a straight line in a cool, shaded area. • • • • • • INSPECTION • • • • • • Before every use, composite hoses should be visually inspected for the following: ■■ Displacement of the reinforcing wires from their normal pitch. ■■ Abrasion of corrosion of the outer wire. ■■ Abrasion of the reinforcing fabrics under the outer cover. ■■ Dents or kinks. ■■ Damage or displacement of the end fittings. ■■ Evidence of leakage at the end fittings. Evidence of any of the above should result in the hose being retired from service. • • • • • • TESTING • • • • • • Every six months, composite hoses should be checked for electrical continuity using the following procedure: 1. Lay the hose flat on the ground. 2. Check that the hose is electrically continuous from end to end. A battery light can be used, however ideally an ohmmeter will be used. 3. Electrical resistance should not exceed 10 ohms. Every six months for chemical applications and every twelve months for petroleum applications, composite hoses should be pressure tested using the following procedure: 1. Drain and clean the hose assembly. 2. Inspect the hose for damage. Composite hoses that show significant physical damage should not be tested and be retired from service. 3. Lay the hose out straight with room for elongation under pressure.* 4. Blank off one end and fill the hose with water. Take care to make sure all the air is removed from the hose before pressurizing. 5. Raise to the appropriate test pressure and hold. Inspect the hose for leaks and test for electrical continuity. 6. Release the pressure and drain the hose. Mark the hose with the test date and any details of the test. * Elongation of a composite hose under pressure is a feature of its design. Elongation is high compared with conventional rubber hoses and cannot be used as an assessment of the condition of a composite hose. Safety Note: Do not test hoses that fail visual inspection.

Composite hose manufacturing represents a radical departure from conventional hose building technologies. The unique construction method used to make composite hose results in an extremely lightweight and flexible finished product, while a choice of construction materials allows for a range of hoses with the ability to handle a wide variety of chemical and petroleum products. All of the composite hose products listed here feature a 5:1 safety factor and meet EN 13765:2018 specifications. • • • • • • CONSTRUCTION • • • • • • Composite hose consists of multiple layers of thermoplastic film and fabric trapped between internal and external helix wires. The internal wire supports the fabric layers and provides resistance to vacuum in suction applications. Film layers and fabric layers provide sealing and strength to handle pressure applications. By combining different films and fabrics in various ways, it is possible to produce hoses with a tremendous range of chemical resistances, temperature ranges, and working pressures. The unique construction method of composite hose requires the use of specially designed fittings and assembly methods. End fittings are available in both carbon steel and stainless steel and are attached using steel ferrules and a choice of Nitrile (Buna-N) or Viton® seals. • • • • • SELECTION • • • • • Hose applications can be tough, and it is never advisable to select a hose that will be subjected simultaneously to pressure, temperature, and bending radius at the upper limits of its specifications. Please contact a member of our team for advice on selecting the composite hose best suited for your application. • • • • • • INSTALLATION • • • • • • Incorrect installation may greatly shorten the working life of a hose assembly. Special care should be taken so that: ■■ Hose assemblies are not twisted during installation or while in use. ■■ Hoses that flex while in use are routed so that all flexing occurs on the same plane. ■■ The minimum bend radius is not exceeded. ■■ The hose insert is held when attaching threaded adapters as twisting the insert in the hose will ruin the seal. Construction & Installation.................................... 2 Testing & Maintenance...........................................2 Petroleum Composite Hose......................................3 Specialty Composite Hose.......................................4 Chemical Composite Hose.......................................5 Composite Hose Handling Guide...............................5 Composite Hose & Fittings......................................6 Locking Arm Cam-Locks..........................................7 Composite Hose Accessories....................................7 CONSTRUCTION & INSTALLATION

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