If you need to connect two pipes or hoses of different sizes, then our reducers will be a good choice. MASTAR Reducers provide a smooth transition from one tube size to another and provide a consistent, high-quality welding experience that requires little to no surface preparation prior to welding. The best choice when fabricating intercooler ducts, air intakes, and other custom parts. Welcome contact
Butt welded aluminum non-threaded concentric reducer NPT pipe reducer
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- Components used to connect aluminum pipes are usually installed by butt welding. Typically designed to be threadless, the aluminum tubes need to be joined by welding to ensure sealing and structural stability.
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- Alloy: 6061 6063 6082 5083
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Pipe: Use Sch10 aluminum (thin wall)
Use Sch40 aluminum (standard wall)
Use Sch80 aluminum (thick wall)
| Butt welding concentric reducer part hot sale stock size reference | ||||
| Description | Pipe size | Wall thickness | ||
| A | B | A | B | |
| aluminum npt pipe reducer | 3/4mpt | 1/2 fpt | - | - |
| aluminum npt pipe reducer x | 3/4mpt | 1/4 fpt | - | - |
| aluminum npt pipe reducer | 3/8 mpt | 1/4 fpt | - | - |
| aluminum npt pipe reducer | 1/4 mpt | 1/8 fpt | - | - |
| aluminum npt pipe reducer | 3/8 mpt | 1/8 fpt | - | - |
| aluminum npt pipe reducer | 1/2 mpt | 3/8 fpt | - | - |
| aluminum npt pipe reducer | 3 female | 2 male | - | - |
| aluminum npt pipe reducer | 4 female | 2 male | - | - |
| aluminum npt pipe reducer | 6 female | 3 male | - | - |
| aluminum npt pipe reducer | 6 female | 4 male | - | - |
| Seamless thin wall npt pipe reducer | 1 1/2 | 1 | 0.109" | 0.109" |
| Seamless thin wall npt pipe reducer | 2 | 1 1/2 | 0.109" | 0.109" |
| Seamless thin wall npt pipe reducer | 3 | 2 | 0.12" | 0.109" |
| Seamless thin wall npt pipe reducer | 4 | 3 | 0.12" | 0.12" |
| Seamless standard wall npt pipe reducer | 3/4 | 1/2 | 0.113" | 0.109" |
| Seamless standard wall npt pipe reducer | 1 | 3/4 | 0.133" | 0.133" |
| Seamless standard wall npt pipe reducer | 1 1/2 | 1 | 0.145" | 0.133" |
| Seamless standard wall npt pipe reducer | 2 | 1 1/2 | 0.154" | 0.145" |
| Seamless standard wall npt pipe reducer | 3 | 2 | 0.216" | 0.154" |
| Seamless standard wall npt pipe reducer | 4 | 3 | 0.237" | 0.216" |
| Seamless thickness wall npt pipe reducer | 3/4 | 1/2 | 0.154" | 0.147" |
| Seamless thickness wall npt pipe reducer | 1 | 3/4 | 0.179" | 0.154" |
| Seamless thickness wall npt pipe reducer | 1 1/2 | 1 | 0.2" | 0.179" |
| Seamless thickness wall npt pipe reducer | 2 | 1 1/2 | 0.218" | 0.2" |
| Seamless thickness wall npt pipe reducer | 3 | 2 | 0.3" | 0.218" |
| Seamless thickness wall npt pipe reducer | 4 | 3 | 0.337 " | 0.3 " |
Butt welded aluminum non-threaded eccentric reducer
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- Butt welding eccentric reducers usually have an eccentricity in which the central axis of one end does not exactly coincide with the central axis of the other end in order to adjust the axial position of the pipe.
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Butt welding eccentric reducer part hot selling stock size reference |
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| A | B | wall thickness | |
| 3/4" | 1/2" | SCH40/SCH80 | |
| 1" | 1/2" | SCH40/SCH80 | |
| 1" | 3/4" | SCH40/SCH80 | |
| 1 1/4" | 1/2" | SCH80 | |
| 1 1/4" | 3/4" | SCH40/SCH80 | |
| 1 1/4" | 1" | SCH40/SCH80 | |
| 1 1/2" | 1/2" | SCH40/SCH80 | |
| 1 1/2" | 3/4" | SCH40/SCH80 | |
| 1 1/2" | 1" | SCH40/SCH80 | |
| 1 1/2" | 1 1/4" | SCH40/SCH80 | |
| 2" | 3/4" | SCH40/SCH80 | |
| 2" | 1" | SCH40/SCH80 | |
| 2" | 1 1/4" | SCH40/SCH80 | |
| 2" | 1 1/2" | SCH40/SCH80 | |
| 2 1/2" | 1" | SCH40/SCH80 | |
| 2 1/2" | 1 1/4" | SCH40/SCH80 | |
| 2 1/2" | 1 1/2" | SCH40/SCH80 | |
| 2 1/2" | 2" | SCH40/SCH80 | |
| 3" | 1" | SCH40/SCH80 | |
| 3" | 1 1/4" | SCH40/SCH80 | |
| 3" | 1 1/2" | SCH40/SCH80 | |
| 3" | 2" | SCH40/SCH80 | |
| 3" | 2 1/2" | SCH40/SCH80 | |
| 3 1/2" | 1 1/4" | SCH40/SCH80 | |
| 3 1/2" | 1 1/2" | SCH40/SCH80 | |
| 3 1/2" | 2" | SCH40/SCH80 | |
| 3 1/2" | 2 1/2" | SCH40/SCH80 | |
| 3 1/2" | 3" | SCH40/SCH80 | |
| 4" | 1" | SCH40/SCH80 | |
| 4" | 1 1/4" | SCH40/SCH80 | |
| 4" | 1 1/2" | SCH40/SCH80 | |
| 4" | 2" | SCH40/SCH80 | |
| 4" | 2 1/2" | SCH40/SCH80 | |
| 4" | 3" | SCH40/SCH80 | |
| 4" | 3 1/2" | SCH40/SCH80 | |
| 5" | 2" | SCH40/SCH80 | |
| 5" | 3" | SCH40/SCH80 | |
| 5" | 4" | SCH40/SCH80 | |
| 6" | 2" | SCH40/SCH80 | |
| 6" | 3" | SCH40/SCH80 | |
| 6" | 4" | SCH40/SCH80 | |
| 6" | 5" | SCH40/SCH80 | |
| 8" | 3" | SCH40/SCH80 | |
| 8" | 4" | SCH40/SCH80 | |
| 8" | 5" | SCH40/SCH80 | |
| 8" | 6" | SCH40/SCH80 | |
Buttweld step-up reducer
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- A welded pipe connecting component used to gradually transition pipe diameters from smaller to larger sizes. They are connected to the pipes by welding and can regulate the flow rate or flow of fluids in the piping system.
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Dimensions reference of some hot-selling products of butt-welded step-up reducer pipes |
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| A(OD) | B(OD) | L | Nom. Wall | |
| 1.50" (38.1mm) | 1.75"(44.5mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 1.75"(44.5mm) | 2.00"(50.8mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 2.00"(50.8mm) | 2.25"(57.2mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 2.00"(50.8mm) | 2.50"(63.5mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 2.25"(57.2mm) | 2.50"(63.5mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 2.50"(63.5mm) | 3.00"(76.2mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 2.75"(69.9mm) | 3.00"(76.2mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 3.00"(76.2mm) | 3.50"(88.9mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 3.50"(88.9mm) | 4.00"(101.6mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 4.00"(101.6mm) | 4.50"(114.3mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
| 4.50"(114.3mm) | 5.00"(127.0mm) | 4.00"(95.3mm) | 16 ga. (0.065") | |
Transition reducing cone Transition Cones
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- Alloy: 6061 T6, 6063 T6
- Tapered transitions are smooth cones that provide optimal exhaust flow and a large transition range, ideal for building your custom performance exhaust system.
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Transition reducing tapered pipe hot sale dimensions inventory reference list |
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| A -B inch size | A -B metric size | L | |
| 1.5-2'' | 38-51mm | 4'' (100mm) | |
| 2-2,375'' | 51-60mm | 4'' (100mm) | |
| 2-2,5'' | 51-63mm | 4'' (100mm) | |
| 2-2,75'' | 51-70mm | 4'' (100mm) | |
| 2-3'' | 51-76mm | 4'' (100mm) | |
| 2,375-2,5'' | 60-63mm | 4'' (100mm) | |
| 2,375-2,75'' | 60-70mm | 4'' (100mm) | |
| 2,375-3" | 60-76mm | 3'' (76mm) | |
| 2,5-2,75'' | 63-70mm | 4'' (100mm) | |
| 2,5-3'' | 63-76mm | 4'' (100mm) | |
| 2,75-3'' | 70-76mm | 4'' (100mm) | |
| 2,75-3,125'' | 70-80mm | 4'' (100mm) | |
| 2,75-3,5'' | 70-89mm | 4'' ( 100mm ) | |
| 3-3,5'' | 76-89mm | 3'' ( 7 6mm) | |
| 3-4'' | 76-102mm | 4'' ( 1 00mm)/ 3'' ( 7 6mm)/8'' (200mm) | |
| 3,125-3,5'' | 80-89mm | 4'' ( 100mm ) | |
| 3,5-4'' | 89-102mm | 4'' ( 100mm ) | |
Product display of other reducing connecting pipes
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Billet Aluminum Transition
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KF Conical Reducer Nipples
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Aluminum reducer & increaser
Choose MASTAR aluminum alloy reducing pipe
- Fast delivery: We have extensive inventory to ensure fast delivery of any standard aluminum profile, saving time for the smooth progress of your project.
- Customized profiles: In addition to standard aluminum profiles, M ASTAR can also provide customized aluminum profiles according to customer requirements for size and finish. You only need to indicate the alloy, length, quantity, surface finish, end use and other special requirements to us.
- High-Quality Products: The quality of our products complies with standards and certifications and features modern design, high hardness, bend resistance, rust resistance, and insect resistance, as well as good soundproofing and insulation properties.
- Competitive Price: Our product prices are competitive and we can provide reasonable discounts for large quantities, allowing you to get better prices and better services.
- After-sales support: We can provide fast after-sales support to ensure that you receive timely help and support when using our products.
