American standard reducers are mainly used for smooth diameter-reducing transitions in industrial piping systems under the American standard system, achieving smooth connection of pipes with different NPS inch specifications, precisely adju
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American standard reducers are used for the smooth transition between two pipes of different NPS inch specifications in American standard piping systems, regulating the medium flow velocity, flow rate and pressure, and reducing fluid turbulence impact and local erosion. The products are manufactured according to the ASME B16.9 and MSS SP-43 systems, and the end bevels, outer diameters, lengths and tolerances follow American standard specifications, allowing interchangeability with American standard pipes, flanges and valves. Structurally, they are divided into concentric and eccentric: concentric types are mostly used for vertical pipes, vertical equipment connections and gas-phase process pipelines; eccentric types are mostly used for horizontal pipelines, with one side's generatrix flush, avoiding gas accumulation and liquid accumulation. Nominal sizes are NPS 1/2″-48″ (DN15-DN1200), adopting the Schedule wall thickness system, covering SCH10, SCH40, SCH80, SCH160, XXS, etc., with pressure ratings corresponding to Class150-Class900. Mainstream materials include ASTM A234 WPB carbon steel, A403 stainless steel, A234 WP series alloy steel, and A815 duplex steel. Forming processes include seamless hot pushing, steel plate rolling and welding, and forging, supporting both stock and non-standard customization.
| Product Name | ASME Reducer |
| Categories | Reducers |
| Customization | The factory possesses full-dimensional special precision customization capability for the American standard system, is deeply engaged in ANSI/ASME American standard processes, is proficient in the complete set of specifications for the inch system, SCH wall thickness and American standard tolerances, and undertakes various overseas non-standard customization orders. For dimensional customization, it can produce non-standard reducing drops, extended American standard straight pipe sections, special total lengths, and reducers with non-standard eccentricity, adapting to overseas old American standard pipeline network renovation and special interface connection projects for imported equipment. For wall thickness, SCH ultra-thick high-pressure and locally reinforced pressure-resistant structures can be customized, improving high-pressure wear resistance and corrosion resistance while retaining American standard installation dimensions. For materials, the full range of American standard certified grades including WPB carbon steel, 304/316 stainless steel, chrome-molybdenum alloy, and 2205/2507 duplex steel can be customized as needed. For processes, sandblasting is supported |
| MOQ | American standard reducers adopt a flexible tiered MOQ mechanism for foreign trade, precisely adapting to diverse foreign trade procurement scenarios such as overseas sample orders, engineering supplementary orders, overseas warehouse stocking, and large-volume centralized procurement by international EPC projects. NPS1/2″–24″ conventional SCH40 standard wall thickness, WPB carbon steel, 304 stainless steel mainstream in-stock specifications, both concentric and eccentric available, minimum order quantity 10 pieces, supporting foreign |
| Lead Time | Relying on a dedicated standardized production line for American standard pipe fittings, full-specification foreign trade in-stock warehousing, and a mature mass production system, American standard reducers provide stable tiered delivery services for foreign trade, precisely matching overseas shipping schedules and international engineering milestone dates. NPS1/2″–24″ conventional carbon steel, stainless steel American standard wall thickness in-stock specifications, massive inventory year-round, standard orders complete quality inspection within 3 working days, |
| Packaging | American standard reducers adopt high-end dedicated standardized packaging for foreign trade sea freight, strictly adapting to international container transportation, ocean shipping, and multi-leg transit warehousing requirements, comprehensively preventing rust, scratches, bevel damage, and transportation deformation, ensuring export appearance standards are met. For small-diameter NPS1/2″–4″ American standard pipe fittings, high-strength plastic protective rings and dust caps are installed on pipe ends, sprayed with dedicated foreign trade anti-rust oil, individually wrapped with anti-rust paper and waterproof PE film, avoiding ocean shipping salt spray oxidation and bevel wear. For medium-diameter NPS5″–24″ conventional specifications, neatly stacked on fumigation-free solid wood pallets, with layered isolation protection, overall wrapped with waterproof and dustproof film, steel strapping locked and anti-slip secured, eliminating container stacking displacement and collisions. For large-diameter NPS26″–48″ large American standard rolled reducers |
| Reference Price | Inquiry |
| Structure | Concentric reducers (CONC), eccentric reducers (ECC) |
American standard reducers are produced and delivered according to foreign trade orders. NPS1/2″-24″ conventional SCH40 standard wall thickness, WPB carbon steel, 304 stainless steel mainstream stock specifications, concentric and eccentric fully available, minimum order quantity 10 pieces; for other sizes, wall thicknesses, and materials, please contact us to confirm the minimum order quantity and delivery time. Conventional stock specifications for standard orders can complete quality inspection within 3 working days, and the specific shipping time is arranged according to shipping schedules and project milestones. Packaging is graded by diameter: small diameters are fitted with plastic protective rings, dust caps, and anti-rust treatment; medium diameters use fumigation-free solid wood pallets with layered isolation and film-covered steel straps for fixation; large diameters use thickened solid wood crates, foam shock absorption, and square wood reinforcement. All products are affixed with bilingual Chinese-English labels, marking the ASME standard, NPS size, SCH wall thickness, material grade, heat number, and batch information, facilitating overseas warehousing acceptance and cross-border customs clearance.
In the pre-sales stage, our foreign trade engineers can assist in matching materials, SCH wall thickness, and concentric or eccentric structures according to the project's American standard rating, medium working conditions, pressure and temperature, and installation form. During order execution, production, flaw detection, quality inspection, and dimensional verification data can be synchronized, supporting remote factory audits, online inspections, and third-party international supervision, with the entire order process traceable. After-sales provides an 18-month cross-border warranty. During the warranty period, for American standard parameter deviations, process defects, leakage deformation, or substandard materials caused by non-human installation issues, we will remake and reship free of charge and bear the cross-border logistics and production costs. At the same time, we provide 24-hour bilingual Chinese-English technical support to answer technical questions in American standard pipe fitting installation and welding, overseas acceptance specifications, and pipeline network renovation.
The industry mainstream implements the ASME B16.9 forged butt-welding pipe fittings standard, and the stainless steel thin-wall version adapts to the MSS SP-43 standard. The entire series adopts inch NPS sizes and SCH wall thickness, adapting to global American standard pipeline engineering and can smoothly pass overseas supervision acceptance.
For vertical pipelines, vertical equipment connections, and high-temperature gas-phase medium pipelines, concentric reducers are generally selected, with the medium conveyed in the center and no bias flow disturbance. For horizontal liquid-phase pipelines, oil and gas transportation, and working conditions requiring prevention of gas accumulation and liquid accumulation, eccentric reducers are generally selected, with one side of the generatrix flush, conforming to American standard construction specifications. For specific selection, you can contact us to confirm according to pipeline layout and medium status.
The American standard adopts the Schedule exclusive wall thickness system, which is different from the national standard PN pressure system. Under the same NPS size, wall thickness grades such as SCH10, SCH40, SCH80, SCH160, XXS, etc. correspond to different wall thickness values. When purchasing, please confirm the required SCH grade according to the project's American standard grade and design pressure. We can assist with verification.
Yes. We undertake non-standard diameter reduction drop, extended American standard straight pipe sections, special total length, and non-standard eccentric distance reducers. We can also reproduce American standard special-shaped pipe fittings 1:1 according to overseas drawings or old parts, and customize special American standard bevels and non-standard end face structures. The sampling cycle is 3-5 days, and the precision and consistency of mass production are controlled according to American standard specifications. Please provide drawings or old part dimensions, and we will assist in confirming the solution.
For NPS1/2″-24″ conventional SCH40 standard wall thickness, WPB carbon steel, and 304 stainless steel mainstream stock specifications, concentric and eccentric are complete, the minimum order quantity is 10 pieces, and standard orders complete quality inspection within 3 working days. For the minimum order quantity and delivery time of other sizes, wall thicknesses, and materials, please contact us to confirm.
Packaging is protected by caliber according to foreign trade sea freight requirements: small calibers are treated with protective rings, dust caps, and anti-rust treatment; medium calibers use fumigation-free solid wood pallets with layered isolation and film covering for fixation; large calibers use thickened solid wood crates, foam shock absorption, and square timber reinforcement. All products are affixed with bilingual Chinese-English labels, marking ASME standards, NPS sizes, SCH wall thickness, material grades, heat numbers, and batch information, meeting the warehousing acceptance and cross-border customs clearance requirements of overseas projects.
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