ANSI B16.9,B16.28 Reducer, also known as reducing elbow, is a pipe fitting used to connect two pipes with different diameters. Its primary function is to enable a smooth transition between pipe diameters, accommodating connection requirements between pipes of varying sizes or meeting different flow rate and velocity demands in system components.
Material Types
Reducers are commonly made from:
Carbon steel (cost-effective, widely used in general industrial and building piping systems)
Stainless steel (high corrosion resistance, ideal for food, chemical, and pharmaceutical industries with stringent hygiene requirements)
Alloy steel, copper, aluminum, and plastic (for specialized environments).
Shape Classification
Concentric Reducer:
Both ends share the same centerline.
Ensures smooth fluid flow, suitable for vertical pipelines or horizontal systems requiring stable flow.
Eccentric Reducer:
Ends are offset; one side remains flat.
Prevents gas accumulation at the top or liquid pooling at the bottom in horizontal pipelines.
Used in drainage systems or pipelines transporting solid-containing liquids to prevent material deposition.
Specification
| Name | Reducer | |
| Size | Seamless(SMLS) Elbows : 1/2"-24" ,DN15-DN600 Butt Welded Elbows (seam) :26"-150",DN650-DN3800 | |
| Manufacturing process: | Hot forming,Cold forming | |
| Type | Ecc,Con | |
| Thickness | SCH10,SCH20,SCH30,STD SCH40, SCH60, XS, SCH80., SCH100, SCH120, SCH140, SCH160, XXS | |
| Standard | ASME/ANSI B16.9/B16.28; MSS SP 75,MSS SP 43; GOST17378-2001/17376-2001/17375-2001; JIS B2311/B2313/B2316; DIN2605/DIN2606; BS1740.1, BS1965, BS1640, BS3799 | |
| Material | ASTM | Carbon steel: ASTM A234WPB, A420-WPL3, A420-WPL6, ASTM A860 WPHY42,52,56,60,70 |
| Stainless steel: ASTM A403 WP304/WP304L/WP316/WP316L/WP321/WP317/WP347 etc | ||
| Alloy Steel:ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 | ||
| GB | 10#,20#,20G,23g,20R,Q235,16Mn, 16MnR,1Cr5Mo, 12CrMo, 12CrMoG, 12Cr1Mo | |
| Surface | anti rust black painted, anti rust oil, galvanizing | |
| Packing | 1) Seaworthy wooden box for fittings with size from 1/2"~14" 2) Seaworthy wooden pallet for fittings with size above 14" 3) According to the packing requirement of clients | |
| Usage | Petroleum, chemical, machinery, boiler,electric power, shipbuilding, papermaking, construction, etc | |
| Certification | API CE and ISO 9001:2015 | |
| Third part inspect | BV, SGS, LOIYD, TUV, and other party alloyed by clients | |
| special design | as your drawing | |
| Mill Test Certificate | EN 10204/3.1B,EN 10204/3.2B | |
| Payment Term: | T/T OR L/C | |
| Delivery time: | At the earliest, within the period required by customer | |
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