Hoses
Hoses
STENFLEX hoses are flexible pipe connection elements used in industries such as shipbuilding, chemical, pharmaceutical, and food. They are designed to absorb noise and vibration, compensate for movement and pipe expansion, and reduce thermal and mechanical tension. Special structures limit axial movement or torsion stresses.
STENFLEX offers three basic hose versions: rubber, stainless steel convoluted, and plastic hoses. These are typically delivered ready for installation, with special versions for unique conditions.
Manufactured under strict quality control (EN ISO 9001), STENFLEX hoses are optimized using advanced computing techniques, ensuring high safety, ease of installation, and long service life.
Symbols indicate features like tensile stress suitability, vacuum resistance, maximum pressure rating, and temperature resistance, aiding quick product pre-selection.
Used in construction, mining, chemical, automotive, and food processing industries, STENFLEX hoses are suitable for absorbing movement, reducing tension, and bridging construction gaps.
Featuring a three-ply wall structure, rubber hoses are designed for flexibility and pressure resistance, suitable for compensating lateral or angular movement.
Different rubber grades are used based on properties and applications, such as EPDM for heat and weather resistance, and NBR for oil and fuel resistance.
Includes installation and operating instructions covering initial commissioning, use, inspection, and special remarks.
- Materials: Made from synthetic rubber with reinforcements like galvanized steel wire cord or high-strength synthetic fiber. Connection parts include materials like unalloyed steel, stainless steel, malleable cast iron, aluminum, bronze, and brass.
- Temperature Resistance: EPDM withstands up to +110°C, NBR up to +90°C. Pressure reduction due to temperature changes should be checked.
- Connection Types: Include flanges (fixed or rotating), threaded connections, and special connections, equipped with safety hose fittings.
- Type GSD: Suitable for absorbing lateral and lifting movements, reducing stress, and compensating for vibration and installation inaccuracies.
- Type GSS: A robust industrial hose for applications like pressure or suction, handling media like steam, solvents, and food products.
- Type GFS-1: Flexible for handling difficult media, ideal as an elastic adapter piece, pressure or vacuum-resistant.
- Type GFS-2: Heavy-duty for adverse conditions, suitable for chemicals and oils, withstands tensile loads.
- Hose Structure: Features smooth or fabric-patterned cover, options for integrated steel helix for vacuum resistance.
- Dimensions: Detailed dimensions for various hose types, including diameters, bend radius, and flange sizes.
- Ensure compliance with technical instructions and installation guidelines to maximize hose service life.
- Consider external influences, usage period, and handling as they significantly impact hose longevity.
- Features continuous rubber covering through to flange sealing surfaces, available in various dimensions and versions.
- Reinforced with high-strength synthetic fiber and integrated steel helix for vacuum and buckling resistance.
- Made from longitudinally welded pipes, hydraulically formed for flexibility, with single or double stainless steel wire braid for strength.
- Used in high-temperature and high-pressure environments, particularly in the chemical industry.
- STENFLEX PTFE hoses offer excellent chemical resistance and flexibility, available in smooth or convoluted versions.
- STENFLEX PVC hoses are flexible, with options for reinforcement and vacuum resistance, used in chemical, pharmaceutical, and food industries.
- Various materials used for hoses and connection parts, including stainless steel, unalloyed steel, and malleable cast iron, with specific grades detailed.
- Designed for specific industrial applications, handling aggressive media, high-frequency movement, and high operating pressures.
- Recommendations include selecting appropriate hose diameters and complying with technical instructions for installation and operation.
Staflon hoses operate between -200°C and +180°C, offering excellent chemical resistance, including resistance to solvents, weather, ozone, oil, and gas. They are food-resistant, with advice to check for pressure reduction due to temperature changes.
- Type PTS-0: Smooth inner hose
- Type PTS-1: Convoluted inner hose
- Type PTS-2: Inner hose with single braid
- Fixed flange
- Rotating flange with flared end
- Rotating flange with rim
- Nipple with male thread
- Sleeve with female thread
- Cone screwed union with male/female thread
Detailed tables of hose dimensions, bend radii, and pressure ratings for different types of hoses are provided.
Hoses made from materials like PVC, noted for high compressive strength, flexibility, low weight, and resistance to oils, fats, acids, and lyes.
Used in industries like food and beverage, air conditioning, ventilation, swimming pool systems, irrigation, drainage, and cleaning.
- Hoses must be installed by qualified personnel, avoiding torsion, tensile stress, and buckling.
- Regular inspections ensure hoses are free from damage.
- Special care during installation prevents damage from welding sparks and ensures proper alignment and connection.
- Regular checks for damage such as blistering, cracks, or deformation are advised.
- Operators must ensure hoses are accessible for visual inspections and avoid using aggressive chemicals for cleaning.
- Repairs should not be performed by operators to maintain warranty validity.
- Rubber hoses should not be repaired by patching or re-vulcanizing.
- Clean with soap and water, avoiding solvents and sharp objects.
- Regular checks for changes in elastic properties and wear are necessary.
Contact details for STENFLEX and its international subsidiaries are provided for further inquiries and support.
Catalog excerpts
Contents Page General description of the hoses ■ Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ■ Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ■ Development/Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
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Hoses General description of hoses For more than 40 years STENFLEX industrial hoses have been accepted structural elements in industrial and domestic engineering systems. Large-scale industrial manufacture of hoses, constant control of compliance with all manufacturing, business and quality processes (in compliance with EN ISO 9001) as well as decades of experience in the field of hoses guarantee a uniform product of the highest standard. It underlines the STENFLEX quality claim. Our engineers in the field of industrial, processing plant and domestic engineering systems are available for technical...
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Hoses General description of hoses Symbols for quick product selection The easy-to-find list: symbols and their meaning. The colour bar of the following data sheets depict small symbols that illustrate the special features of the corresponding types, for simple pre-selection. Suitable for tensile stress Vacuum resistant Suitable for drinking water Threaded connection to ISO specifications Suitable for acids and lyes Maximum product pressure rating Suitable for oils or fatty media Suitable for food products Flange connections Suitable for gaseous media Sleeve adapters Minimum and/or maximum temperature...
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Hoses Applications/Possible uses/Industries Basic hose types GSD Possible uses Plant construction Construction industry Mining Chemical industry Power industry Automotive engineering Fire safety Materials-handling systems Gas, water and heating industry Wood and paper industry Refrigerating technology Ventilation and air-con technology Plastic processing Agriculture Food industry Mechanical engineering Motor engineering Furnace construction Oil industry Pharmaceutical industry Refineries Shipping Steel and metal construction Exhaust hoses Extraction hoses Construction and materials handling hoses...
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Hoses Program summary Rubber hoses Type Hose material Connection parts flanges, threads flanges, threads rubber flanges, rubber rim lamellar flanges, socket flanges flanges, threads, welding ends, quick coupling Stainless steel hoses flanges, threads, welding ends, 3.3 quick coupling flanges, threads, welding ends, quick coupling flanges, threads flanges, threads Plastic hoses
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Rubber hoses General description Structure STENFLEX rubber hoses have been optimized by calculation and verified by experimentation to produce highly elastic, pressure-resistant hoses with the capacity to absorb large movement. Rubber hoses have a three-ply wall structure: ■ inner ply (core) of medium-resistant rubber compound ■ intermediate ply of rubber compound with reinforcement ■ outer ply (hose cover) of weatherproof rubber compound The rubber grades used for the inner and outer ply are empirically defined rubber compounds rated to certain properties. The inner rubber material – the hose...
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Rubber hoses General description Material qualities of hose elements Rubber grade EPDM Ethylene propylene diene rubber Trade name Buna AP Keltan Vistaton Heat-, weather and ozone-proof rubber grade with special resistance to highly oxidizing media and most chemicals (not oilproof). Safe temperature range for continuous operation from -40°C to +110°C. Water, hot water, steam, acids, lye, pickling lye, hypochlorite solutions etc. Perbunan Nitril Oil-proof and fuel-resistant, good physical properties, food-resistant, weather- and ozone-proof, wear-resistant, conditionally resistant to certain chemicals,...
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Rubber hoses General description Connection parts STENFLEX rubber hoses type GSS and GSD consist generally of standard rubber parts clamped to robust connection elements. The following connection parts are possible The extensive compression provides optimum force transfer (high tensile strength). The clamping shells extend beyond the socket and thus protect against buckling. ■ Flanges (rotating flanges or fixed flanges) ■ Threaded connections ■ Combined connections ■ Special connections The readjustable safety hose fitting guarantees a long service life. The connection parts are fitted to the...
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Rubber industrial hose type GSD ■ ■ Hose with integrated connection fittings ■ Connection fittings as flange, male thread, female thread or coupling ■ Fittings integrated by aluminium clamping shell Hose ■ Electric resistance 103 to 106 ohm (DIN IEC 93, VDE 0303-30) ■ Smooth hose core and fabric patterned hose cover of synthetic rubber ■ Reinforcements of galvanized steel wire cord, embedded in rubber for corrosion protection Rubber grade** EPDM Ethylene propylene diene rubber Trade name Temperature* Properties Buna AP Keltan Vistaflon Nitril-butadiene rubber Type GDS with fixed flange Type GSD...
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Hose with threaded connection, standard program Hose with flange connection, standard program Hose Ø DI Hose inner Ø R Bend radius without helix approx. approx. approx. mm mm mm 20 25 32 40 50 Loose and fixed flanges ØD Ød E F Flange Inner Ø Clamping Clamping outer Ø fitting shell shell mm Union nut, with female thread (ISO 228-1), (pressure-tight joints not made on the threads) *Weights refer to max. weight for 2 connections Weights Hose *Clamping shell and rotating or fixed flange approx. Weights *Clamping *Clamshell and ping shell union nut and nipple with fixed male thread approx. approx....
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Rubber industrial hose type GSS ■ ■ Hose with integrated connection fittings ■ Fittings integrated by aluminium clamping shell ■ Connection fittings as flange, male thread, female thread or coupling ■ Vacuum-resistant version with integrated helix Hose ■ Smooth hose core and smooth or fabric patterned hose cover of synthetic rubber ■ Reinforcement of high-strength synthetic fibre or galvanized steel wire cord Rubber grade** EPDM Trade name Type GSS with fixed flange Type GSS with rotating flange Type GSS with male thread ■ Additionally integrated steel helix as vacuum-resistant and bucklingresistant...
Open the catalog to page 12All STENFLEX Rudolf Stender GmbH catalogs and technical brochures
FLEXIBLE PIPE CONNECTIONS224 Pages
