ARK Stainless Inc. is a manufacturer, supplier and exporter of stainless steel flexible hose pipes, SS braided hoses and corrugated flexible metal hose assemblies, based in Mumbai, India. We manufacture these hoses for industrial piping systems where vibration, thermal expansion or equipment movement makes rigid connections unsuitable.
Each hose is a corrugated stainless steel core covered with single, double or multiple layers of wire braid, and fitted with threaded, flanged or welded ends to match your line. Send us the media, pressure, temperature, size and how much the hose has to move, and we’ll quote to that.
A stainless steel flexible hose starts with a thin-walled corrugated tube. The corrugations let the hose bend and accommodate movement that rigid pipe can't take. Depending on the working pressure, wire braid goes over the tube in one or more layers, and end fittings are attached to connect it to your piping.
The braid does more than protect the tube. Pressure inside a corrugated hose pushes it to stretch lengthwise, a bit like a spring, and the braid helps limit that extension while carrying part of the pressure load. That's why the pressure rating of an SS braided flexible hose depends on the hose diameter, corrugation design, braid construction and operating temperature, not on the braid alone.
You'll see these products called a stainless steel flexible hose, a corrugated stainless steel hose, a flexible metal hose, a braided metal hose, an SS flexible hose pipe or, in the Indian market, a bellow hose. Buyers use these names interchangeably in enquiries, though the actual construction can differ. When the hose comes with its end fittings attached, it's called a flexible hose assembly, which is what most industrial buyers order.
A single braided stainless steel flexible hose is suitable for many industrial piping connections where its pressure rating meets the operating requirements. Double braided SS flexible hoses have an additional layer of wire braid and are generally used for higher pressure applications. The extra braiding can affect flexibility and cost. Three or more layers are available for special pressure requirements.
For lines with pressure pulsation, such as reciprocating pump connections, the hose must also be selected for the pressure cycles and movement involved.
Not sure whether you need a single braided or double braided flexible hose? Send us the hose size, working pressure, temperature and application details. There's no point paying for heavier braiding than the job needs.
The corrugated stainless steel tube gives the hose its flexibility. Its ridged construction allows the hose to bend and accommodate vibration, thermal expansion and limited movement in industrial piping systems. The hose diameter, corrugation profile and minimum bend radius determine how much movement it can safely handle.
Stainless steel wire braiding provides pressure reinforcement and helps prevent the corrugated tube from extending under internal pressure. It also offers some protection against external contact and abrasion. Depending on the hose size and working pressure, a braided stainless steel flexible hose may have one, two or more layers of wire braid.
The hose is completed with suitable end fittings, such as threaded connections, flanges or welded pipe ends. At ARK Stainless Inc., we inspect the welded connections before dispatch, as these joints are an important part of the finished flexible metal hose assembly.
The right hose depends on the working pressure, process media, movement requirements and end connections. ARK Stainless Inc. manufactures corrugated and braided stainless steel flexible hose pipes for industrial piping systems, utility lines and OEM equipment. The main types are listed below.
A corrugated stainless steel flexible hose pipe has a flexible metal tube without external wire braiding. Unbraided hoses can be used for suitable low-pressure and vacuum applications, provided the hose is rated for those conditions. Where higher internal pressure is involved, stainless steel wire braiding is generally added to provide reinforcement.
This is what many industrial buyers mean when they ask for an SS flexible hose pipe or a braided flexible hose: a corrugated stainless steel tube with one or more layers of wire braid. Single braided and double braided SS flexible hoses are used for pump connections, compressors and process piping where pressure resistance and controlled movement are required.
High-pressure stainless steel flexible hoses are used in refineries, power plants and industrial process lines where a standard hose construction may not meet the working pressure. Depending on the application, these assemblies can have additional braid reinforcement and suitable high-pressure end fittings. The hose, braid and end connections must all be rated for the specified service conditions.
Steam flexible hose pipes are used in steam distribution lines, boiler connections and other high-temperature piping applications. Steam temperature, pressure and repeated heating and cooling cycles all affect hose selection.
For saturated or superheated steam service, send us the operating pressure, temperature and required hose size. The installation also needs to account for condensate drainage, as low points where water collects can create operating problems.
Stainless steel flexible hoses are used for transferring compatible chemicals, solvents and process liquids in chemical plants and industrial facilities. The hose material must be suitable for the chemical, its concentration and the operating temperature.
SS 316L flexible hoses may be preferred over SS 304 for certain corrosive services, but neither grade is suitable for every chemical. If you're unsure which material to specify, send us the chemical name, concentration, temperature and working pressure so we can review the requirement.
Need an unusual length, a flange on one end and a threaded fitting on the other, or a flexible metal hose made to an existing drawing? ARK Stainless Inc. manufactures custom SS flexible hose assemblies with flanged, threaded, welded and other specified end connections.
Send us your drawing or existing hose specifications along with the material grade, hose size, pressure rating and quantity. We'll review the details and quote accordingly.
The right stainless steel grade depends on what's flowing through the hose, the operating temperature and the surrounding conditions. ARK Stainless Inc. manufactures SS flexible hose pipes in different material grades to suit industrial piping requirements. These are some of the commonly specified grades.
Our manufacturing range includes SS 304 Flexible Hose Pipes, SS 304L Flexible Hose Assemblies, SS 316 Flexible Hose Pipes, SS 316L Braided Hose Assemblies, SS 321 Flexible Hose Pipes, SS 316Ti Flexible Hose Assemblies and special alloy hose assemblies manufactured to customer specifications and application requirements.
SS 304 and SS 304L flexible hose pipes are widely used for general industrial applications involving water, air, steam, compressed gases and compatible process fluids. These grades offer good corrosion resistance, strength and fabrication properties, making them suitable for a wide range of process piping and utility services. SS 304L has a lower carbon content, which helps reduce the risk of intergranular corrosion associated with welding.
SS 316 and SS 316L flexible hose pipes are commonly supplied for chemical processing plants, pharmaceutical facilities, food processing units, marine applications and corrosive process environments. The addition of molybdenum improves resistance to pitting corrosion in many chloride-containing environments and provides good resistance to various industrial chemicals, depending on the service conditions.
SS 321 flexible hose pipes are used for applications involving prolonged exposure to elevated temperatures. The titanium-stabilised stainless steel grade helps improve resistance to intergranular corrosion, making it suitable for selected exhaust systems, thermal equipment, furnaces and high-temperature process piping applications.
SS 316Ti flexible hose pipes combine the corrosion resistance of SS 316 with titanium stabilisation for improved resistance to sensitisation and intergranular corrosion at elevated temperatures. These hose assemblies may be specified for petrochemical plants, refineries, chemical processing facilities and industrial piping systems operating under demanding service conditions.
For conditions where conventional stainless steel may not be suitable, such as aggressive chemicals, seawater or extreme temperatures, special alloy flexible hose assemblies may be required. Inconel alloys are often considered for high-temperature service, Monel for certain marine and chemical applications, and Hastelloy for demanding corrosive environments.
The right alloy depends on the process media, concentration, temperature and pressure. Send us your operating conditions so we can review the material requirements.
The end fitting decides how the hose connects to your line, and mismatched ends are an easy mistake to make. We supply BSP, BSPT, NPT, ANSI/ASME, DIN, EN and JIS connections, along with welded and custom ends.
Common on utility lines, water, compressed air and industrial equipment where a hose needs to be disconnected or replaced without modifying the pipework. BSPP uses parallel threads, while BSPT uses tapered threads, so the correct thread type and sealing arrangement matter.
Common on equipment and piping built to American standards, including oil and gas, petrochemical, instrumentation and process applications. One warning: BSP and NPT threads can look similar, but they have different thread forms and are not generally interchangeable. Tell us which thread your equipment uses before ordering.
Flanged connections are useful where hoses need to be inspected, removed or replaced. We supply ANSI/ASME, DIN, EN and JIS flanges in different pressure classes. Send us the flange standard, size, pressure class and facing so the connections match your existing pipework.
For piping systems where the specification calls for welded connections, such as refineries, power plants and chemical processing units. Welded pipe ends can be supplied to match the pipe material, dimensions and connection requirements. Send us the pipe size, schedule and material so the weld ends match your line.
Camlock couplings are commonly used for liquid transfer applications where hoses are connected and disconnected frequently. The coupling must be rated for the operating pressure, temperature and media. Quick couplings, adaptors, unions and other custom fittings can also be supplied to match existing equipment.
ARK Stainless Inc. manufactures stainless steel flexible hose pipes in different series to suit varying pressure, temperature, movement and installation requirements. Each series is developed for specific industrial applications, allowing customers to select a hose assembly based on operating conditions, flexibility requirements and pressure ratings rather than using a single hose for every application.
Our product range includes Standard Pitch Flexible Hose, Mechanically Formed Flexible Hose, Heavy Duty Stainless Steel Flexible Hose and Open Pitch Flexible Hose Assemblies for process industries, utilities, OEM equipment and industrial piping systems.
Hydro testing, PMI, dimensional checks and visual inspection are available, along with material test certificates to EN 10204 3.1, inspection reports and heat-number traceability. Tell us at the enquiry stage what your project needs. Third-party inspection can be arranged on request, but it needs scheduling, so it helps to mention it early.
Most premature failures come from how the hose was fitted, not how it was made.
A standard corrugation profile for lines that need to accommodate installation movement, vibration or thermal expansion within the hose's rated limits. Typical uses include steam distribution, hot water, chemical transfer and general process and utility piping.
For applications requiring higher working pressure, with stainless steel wire braid reinforcement selected to meet the specified pressure rating. These hose assemblies may be used on pumps, compressors, hydraulic equipment and industrial process lines.
A reinforced hose construction for demanding industrial service where pressure, temperature and mechanical requirements need particular attention. Typical applications include oil and gas, refineries, petrochemical plants and power generation.
An open corrugation profile for selected industrial piping applications, including heat exchangers, thermal systems and process connections. Suitability depends on the required movement, operating pressure and temperature.
Every series has pressure, temperature and movement limits that depend on its construction and size. Send us your operating conditions, and we'll help identify a suitable hose series.
Start with the working pressure and temperature, as these help narrow down the options. Then look at how much the line moves and how often, the available bend radius and the media flowing through it. Send us these details along with the hose size, and we'll help you select a suitable series and braid construction.
Stainless steel flexible hose pipes go wherever rigid pipe meets something that moves:
Send us your drawing or a rough specification with the hose size, length, process media, working pressure, temperature, end connections and quantity. We'll review your requirements and get back to you with a quotation. If we think your specification needs adjusting, we'll let you know.
Phone: +91 99304 98823
Email: sales@arkstainlessinc.com
A flexible metal hose connects piping and equipment where vibration, thermal expansion or limited movement needs to be accommodated. Common examples include pump connections, steam lines and vibrating machinery. You may also see it called a stainless steel flex hose, corrugated flex pipe or SS flexible hose pipe. The construction, material grade, braid and end connections depend on the application.
A braided hose has a corrugated stainless steel tube covered with one or more layers of wire braid. The corrugated tube provides flexibility and contains the process fluid. The braid helps restrain the tube from extending under internal pressure and increases the hose's pressure capacity.
A single braided hose is suitable for many industrial applications when its pressure rating meets the operating requirements. Double braiding is generally used when higher pressure capacity is needed. It doesn't automatically make a hose suitable for pulsating flow. Send us the hose size, working pressure, temperature and application details, and we'll help you choose the right construction.
SS 304 is commonly used for water, air, steam and compatible process fluids. SS 316 offers better resistance to certain corrosive environments, including many chloride-containing applications. But neither grade suits every chemical or operating condition. If the hose will be exposed to chlorides, high temperatures or aggressive chemicals, tell us before ordering so we can review the material suitability.
It depends on how the hose is used. A hose that only accommodates occasional thermal expansion may last for years under suitable conditions. One that flexes constantly on a compressor connection is subject to repeated fatigue and may need replacement sooner. Pressure cycles, temperature, process media and installation all affect service life. A twisted or over-bent hose can fail prematurely, regardless of its material grade.
Yes, provided the hose assembly is designed and rated for the steam conditions. Tell us whether the steam is saturated or superheated, along with the operating pressure and temperature. We'll review the suitable material grade, braid construction and end connections.
ISO 10380 is an international standard covering corrugated metal hoses and hose assemblies. BS 6501 is a British standard series covering metal hose assemblies, with requirements and guidance depending on the relevant part. If your project specifies either standard, mention the applicable edition and requirements when requesting a quotation.
Yes. ARK Stainless Inc. is a stainless steel flexible hose pipe manufacturer and supplier based in Mumbai, India. We supply industrial customers across Maharashtra and other parts of India and also handle export enquiries for stainless steel flexible hose assemblies.
