3 Inch x 6m SS Flexible Hose vs Single Braided Stainless Hose

Procurement teams search this spec two different ways depending on which document they are working from. A mechanical drawing calls out '3 inch x 6m SS flexible hose' by nominal bore and length. A spec sheet or old PO calls out 'stainless steel hose c/w single braided' by construction. Both describe the same physical item: a DN80 (3 inch nominal bore) SS304 corrugated inner tube, 6 meters long, wrapped in a single layer of woven stainless steel wire braid. There is no difference in the product, only in which convention the buyer learned first. JOHOB supplies this assembly under its Piping, Fittings and Accessories category, alongside ball valves, gate valves, and related connectors used in the same pump rooms, boiler rooms, and utility risers. Stock is sourced from an ISO 9001 certified partner factory and delivered nationwide across NCR, Luzon, Visayas, and Mindanao, including PEZA and SBMA locator sites. Knowing both naming conventions matters most when cross-checking a quote against an old spec sheet or a contractor's as-built drawing: if the DN80 bore, the 6 meter length, and the single-braid construction all match, it is the same part regardless of which label is on the page.

'Single braided' means the corrugated SS304 inner tube is wrapped in exactly one layer of woven stainless steel wire. The braid does two jobs: it resists the internal pressure trying to expand the corrugated tube outward, and it absorbs vibration and allows the hose to flex at pump connections, boiler feed lines, and anywhere two fixed points are not perfectly aligned. A single braid is adequate for most standard-duty connections at normal operating pressure and ordinary vibration from a pump or compressor. Double braided means a second layer of wire is woven over the first. The extra layer raises the pressure rating and extends fatigue life under constant flexing, which matters for continuous-duty steam lines, high-vibration equipment, or installations where the hose flexes through many cycles over its service life rather than sitting mostly static. JOHOB sizes and specs each assembly per the installation: for a straightforward 3 inch x 6m run feeding a booster pump or transfer system, single braid is typically sufficient; for steam, condensate, or continuous high-cycle service, JOHOB will recommend double braid and confirm the exact pressure rating for that configuration before quoting, since rating depends on bore, braid count, and end fitting together, not on any one spec alone.

DN80 (3 inch nominal bore) is sized for the flow rate of the equipment it connects, not chosen independently. In practice this size shows up most often on booster pump discharge lines, transfer pump suction and discharge runs, and boiler feed or condensate return lines where the fixed piping is already sized at 3 inch and a flexible section is needed to absorb vibration or allow for thermal movement. The 6 meter length is a common run length for connecting equipment that sits some distance apart, for example a pump skid to a header manifold across a plant room, or a boiler to a condensate tank in a separate bay, without needing multiple rigid elbows. Buyers should confirm the actual flow rate and operating pressure of the system before ordering, since a 3 inch assembly undersized for the actual flow creates unnecessary pressure drop, and an oversized assembly adds cost without benefit. JOHOB stocks this spec ex-stock with delivery in 21 to 35 days; non-standard lengths, bore sizes, or braid configurations are made-to-order in 45 to 90 days. Confirming the exact bore, length, and braid count against the equipment datasheet before ordering avoids a costly reorder on a made-to-order run.

End fittings on this assembly are specified per project to match the existing pipework, commonly flanged or threaded connections sized to the DN80 bore. The exact pressure rating of a finished assembly depends on the combination of bore, braid count (single or double), and fitting type together, so JOHOB provides a pressure rating specific to each configuration rather than a single blanket figure, and buyers should request that rating sheet before finalizing an order for a critical application. On certification, the hose is produced at an ISO 9001 certified partner factory, meaning the factory's quality management system is independently certified, and the hose construction is TUV SUD tested. These two certifications cover the manufacturing quality and testing of the hose itself. JOHOB does not apply CE marking or ASME pressure vessel certification to this product line: CE marking on JOHOB's supplied equipment applies to electrical panels and material handling equipment, and ASME applies to pressure vessels where relevant, neither of which describes a flexible hose assembly. Buyers who need a specific third-party certification beyond ISO 9001 and TUV SUD testing should confirm that requirement with JOHOB before ordering, since it may affect lead time and sourcing.

This spec shows up across several of JOHOB's core verticals rather than one single use case. In pumping and pressure systems, a 3 inch x 6m single braided hose is a common flexible connector between a booster or transfer pump skid and the fixed discharge header, isolating pump vibration from the rest of the piping run. In steam and boiler systems, the same bore and braid construction connects boiler feed lines or condensate return runs where thermal expansion and movement need to be absorbed without stressing rigid pipe joints. In fire protection installations, a flexible connector of this size is used where a fire reserve tank or pump set needs a short run of flexible pipe to a fixed header, allowing for minor misalignment during installation. Facilities most likely to need this exact spec include commercial and industrial pump rooms, boiler rooms in hotels and hospitals, and utility buildings inside PEZA and SBMA zones where JOHOB already delivers nationwide. The right vertical determines whether single or double braid is the better choice, so buyers should tell JOHOB which system the hose is going into (pumping, steam, or fire protection) when requesting a quote, not just the bore and length.

JOHOB prices this hose spec on a quote basis; there is no public price list, because the final price depends on braid count, end fitting, and certification requirements for the specific installation. Standard ex-stock sizes, including the common 3 inch x 6m single braided configuration, ship in 21 to 35 days. Non-standard lengths, bore sizes, or double-braid configurations are made-to-order in 45 to 90 days. VAT-registered buyers are charged the standard 12% VAT; PEZA and SBMA locators and qualifying exporters are zero-VAT on this purchase. JOHOB responds to RFQs within 1 business day. To get an accurate quote, buyers should provide the exact bore (3 inch / DN80), the length (6m or otherwise), single or double braid, the end fitting type needed, the system it connects to (pumping, steam, or fire protection), and whether the buyer is VAT-registered, zero-rated, or a PEZA/SBMA locator. Providing all of this up front, rather than just the bore and length, avoids a second round of clarification and gets a firm quote back inside JOHOB's 1 business day response window.