

Pipe Reducers: Product Overview
Our pipe reducers are precision-engineered components designed to facilitate a seamless transition between different pipe diameters within a piping system. We offer both Concentric Reducers (for vertical lines) and Eccentric Reducers (to maintain a level bottom or top in horizontal lines), ensuring optimal flow dynamics and pressure management.
Technical Specifications
Size Range: Seamless (SMLS): 1/2" to 24" (DN15 – DN600)
Welded: Up to 72" (DN1800)
Wall Thickness: SCH 5S through SCH 160, XXS, and custom heavy-wall thicknesses.
Production Standards:
ASME/ANSI: B16.9 (Factory-Made Wrought Buttwelding Fittings)
MSS: SP-43, SP-75
DIN/EN: EN 10253, DIN 2616
Steel Grades:
Carbon Steel: ASTM A234 WPB, WPC; ST37.2
Alloy Steel: ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91
Low-Temperature Steel: ASTM A420 WPL6
Stainless Steel: ASTM A403 WP304/304L, WP316/316L, 317L, 321
High-Yield Steel: ASTM A860 WPHY 42, 52, 60, 65, 70
Primary Applications
Pipe reducers are critical across various industrial sectors where fluid, gas, or steam must be transported efficiently:
Oil & Gas: Used in refineries and cross-country pipelines to adjust flow rates and accommodate varied equipment intake sizes.
Power Generation: Essential for steam and water circulation systems in thermal and nuclear power plants.
Chemical Processing: Provides safe transitions for corrosive media, ensuring no turbulence or accumulation at connection points.
Water Treatment: Facilitates the transition between main distribution lines and smaller municipal branches.
Marine & Shipbuilding: Used in compact engine room piping where space optimization and flow efficiency are paramount.
Steel Material Grades
| Material | Grades |
| Nickel Alloy | ASTM / ASME SB 336 UNS 2200 (NICKEL 200), UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8020 (ALLOY 20 / 20 CB 3), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276) |
| Carbon Steel | ASTM / ASME A/SA 234 GR. WPB, WPC, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70 |
| Low Alloy Steel | ASTM / ASME A/SA 234 GR. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 23, WP 91 |
| Low Temp Carbon steel | ASTM A420 WPL3, A420 WPL6 |
| Duplex and Super Duplex Steel | ASTM A 815, ASME SA 815 UNS NO S31803, S32205. UNS S32750, S32950. Werkstoff No. 1.4462 |
| Stainless Steel | ASTM A403 WP316/316L, ASTM A403 SA / A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404 |
| High Strength Ferritic Steel | ASTM A860 WPHY42, WPHY52, WPHY60, WPHY65, WPHY70 |
| Titanium | ASTM / ASME SB 363 GR. 1, GR. 2, GR. 3, GR. 4, GR. 5, GR. 7, GR. 9, GR. 12, GR. 23 |
| Cu Ni Alloy | C70600 (90:10), C71500 (70:30), C71640 |
Butt welding Fittings Manufacturing Standards
| Standard | Type |
| ASME B16.9 | Factory-Made Wrought Buttwelding Fittings |
| ASME B16.28 | Wrought Steel Short Radius Elbows and Buttwelding Returns |
| ASME B16.49 | Factory-Made, Wrought Steel, Buttwelding Induction Bends for Transportation and Distribution Systems |
| MSS SP43 | Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications |
| MSS SP75 | Specification for High-Test, Wrought, Butt-Welding Fittings |
Pipe Reducer Production Process