SS304 Corrugated Inner Tube with SS304 Wire Braid: What It Means

SS304 corrugated inner tube with SS304 wire braid describes a flexible metal hose built from two layers, both in 304-grade stainless steel. The corrugated inner tube is a thin-wall SS304 pipe formed into ridges so the hose can bend and absorb vibration without cracking. Wrapped around that tube is a wire braid, also SS304, woven tightly over the corrugations to resist the internal pressure trying to straighten the tube and to protect the corrugations from external abrasion and impact. Using the same grade for both layers is a simpler spec than the mixed configuration covered in JOHOB's other published guides, where the inner tube is upgraded to 316 SS for stronger corrosion resistance while the outer braid stays at 304 SS. An all-304 build typically costs less than a 316/304 mixed build, since 304 stainless does not carry the added molybdenum that gives 316 its higher resistance to chlorides and aggressive chemicals. For buyers connecting pumps, tanks, boilers, or general water lines in non-marine, non-corrosive environments, an all-304 corrugated and braided hose is a common, cost-effective choice. JOHOB Hardware Trading supplies this configuration under its Piping, Fittings, and Accessories category, sourced through an ISO 9001 certified partner factory and delivered with local warranty and after-sales support nationwide.

JOHOB's existing technical guides cover the mixed-grade hose, where the corrugated inner tube is 316 SS and the braid is 304 SS. That configuration is specified when the fluid inside the hose, or the environment around it, is more likely to cause chloride-driven corrosion, coastal air, cleaning chemicals, or aggressive process fluids are the usual triggers. An all-304 corrugated tube with an all-304 braid is the right call for general industrial or commercial water, steam, or air service indoors, without heavy chemical exposure. Procurement teams sometimes default to all-304 because it is the more commonly stocked configuration and typically falls within JOHOB's standard 21 to 35 day ex-stock window, compared to made-to-order builds that can run 45 to 90 days. Because the spec abbreviations SS304/SS304 and 316 SS/304 SS look similar on paper, mismatched orders are a common sourcing error. Confirming the grade of both the inner tube and the outer braid, not just one of them, before issuing a purchase order avoids a hose that fails prematurely in service or one that is unnecessarily overspecified for the application. JOHOB's RFQ process asks for both grades explicitly and responds within 1 business day to confirm the exact build before quoting.

JOHOB supplies SS304 corrugated and braided flexible hose across a size range of DN15 (half inch) to DN100 (4 inch), covering the connection sizes most common on commercial and institutional pump sets, tanks, and boiler feed lines in the Philippines. Pressure classes follow the standard PN10, PN16, and PN25 bands used across JOHOB's stainless hose line, with the exact working and burst pressure for a given size and length confirmed at quotation stage rather than published as one blanket figure, since braid density and hose length both affect the final rating. Standard lead time is 21 to 35 days for ex-stock sizes and configurations, and 45 to 90 days for made-to-order sizes, non-standard lengths, or custom end-fittings. Buyers working to a fixed project schedule should confirm size and length against ex-stock availability at RFQ stage to avoid defaulting into the made-to-order lead time. JOHOB responds to RFQs within 1 business day, and where a written technical recommendation is needed instead of a straight quote, targets 3 to 5 business days to return it. All pricing is quote-based; JOHOB does not publish per-unit prices, since hose length, end-fitting type, and packaging affect the final landed cost.

SS304 corrugated and braided flexible hose is most often specified as a connector rather than a run of pipe: the flexibility absorbs vibration and minor misalignment where rigid pipe cannot. Typical placements include the discharge and suction sides of booster and transfer pump sets, flexible connections into VFD-controlled duplex pump panels, tie-ins on water storage tanks, and short jumper connections around steam or hot water lines in boiler rooms. Because JOHOB supplies pumping and pressure systems, steam and boiler systems, and piping accessories as part of one product range, a single RFQ can cover the hose alongside the pump, panel, or boiler it connects to, simplifying vendor management for facilities and MEP contractors on one project. Coverage extends nationwide: NCR, Luzon, Visayas, Mindanao, and PEZA, SBMA, and Clark economic zones, with zero-VAT invoicing available for PEZA and SBMA locators and exporters, and standard 12% VAT for VAT-registered buyers elsewhere. Facilities and hotel engineering teams, food processing plants, hospitals, and institutional buyers replacing a failed hose on an existing pump or boiler line are frequent buyers of this exact configuration, since it is usually a like-for-like replacement part rather than a new system design.

JOHOB sources SS304 corrugated and braided hose through a vetted overseas manufacturer holding ISO 9001 certification for its quality management system, with output that is TUV SUD tested. JOHOB does not manufacture the hose itself; it is a partner-factory sourced product, backed by local warranty and after-sales support handled directly by JOHOB in the Philippines rather than routed back to the factory. This sourcing model is the same one JOHOB uses across its pumping systems, electrical panels, and piping accessories categories, and it is what allows JOHOB to hold a 21 to 35 day ex-stock lead time on common sizes while still offering made-to-order builds for non-standard specifications. Buyers who need certification documents for a specific project, mill test certificates, material certificates, or a TUV test report, should request them at RFQ stage, since which documents apply depends on the specific size, pressure class, and end-fitting ordered. JOHOB's after-sales support covers warranty claims and replacement sourcing for hose already in service, which matters for facilities teams standardizing on one supplier for pump and boiler room consumables rather than sourcing each replacement part separately.

To get a quote, submit an RFQ specifying the size (DN15 to DN100), overall length, end-fitting type, and the application the hose will be connected to: pump suction or discharge, boiler feed, or tank tie-in. JOHOB responds within 1 business day to confirm the build and lead time, ex-stock at 21 to 35 days or made-to-order at 45 to 90 days, before issuing pricing. Pricing is quote-based and not published, since length and fittings change the landed cost per unit. VAT-registered buyers are invoiced with standard 12% VAT, while PEZA and SBMA locators and exporters qualify for zero-VAT invoicing on eligible purchases. JOHOB covers nationwide delivery across NCR, Luzon, Visayas, and Mindanao, including PEZA, SBMA, and Clark zones, and can bundle the hose into a single RFQ alongside the pump, panel, or boiler system it will be installed with, reducing the number of vendors a facilities or procurement team has to manage for one installation.