BW butt weld reducer
BW butt-welded reducers are specialized reducing fittings for high-pressure and high-temperature piping systems. Their core function is to achieve seamless transitional connection of pipes with different diameters through butt welding, smoo
Inquiry
- The biggest core advantages of BW butt welding reducers are integrated one-piece forming by butt welding, equal strength with the pipe base material, and zero leakage under high pressure
- making them the most recognized and safest reducer fittings for industrial high-pressure pipelines. Both ends of the product are precision beveled
- High weld fusion
- Excellent overall integrity after forming
- no loosening, no leakage, high pressure resistance, high temperature resistance, and thermal creep resistance
Detailed Introduction
BW butt-weld reducer (butt-weld concentric/eccentric reducer) is butt-welded to the pipe through beveled ends at both ends, and the weld seam merges with the base metal, providing high overall strength and good sealing performance, suitable for high-temperature and high-pressure and flammable and explosive media transportation. The concentric type is used for vertical risers, steam and gas pipelines, with the medium conveyed in the center and stable flow channel; the eccentric type is divided into top-flat and bottom-flat, used for horizontal pipelines, which can solve the problems of pump inlet cavitation and drainage sedimentation. The product diameter range covers DN15-DN1800, wall thickness includes STD/XS/XXS and the full SCH series, raw materials are seamless steel pipes or steel plates processed and formed, and the root gap is controllable after fine machining of the bevel. We can confirm the material, bevel angle, straight pipe section length and surface treatment method according to project requirements, and welcome drawings or samples to assist with quotation.
- Standard bevel machining at both ends, equal strength to the pipeline after butt welding, suitable for high-temperature and high-pressure continuous operation conditions
- Concentric and eccentric structures are available, the eccentric type is divided into top-flat and bottom-flat, adapting to the anti-cavitation and anti-siltation needs of horizontal pipeline pump inlets and drainage
- Diameter range covers DN15-DN1800, wall thickness includes STD/XS/XXS and the full SCH series, and complies with standards such as GB/T12459, GB/T13401, ASME B16.9, SH/T3408, etc.
- Raw materials are seamless steel pipes or steel plates, after forming the bevel is finely machined, the end face is flat, and the root gap is controllable
- Supports customization of materials such as carbon steel, stainless steel, alloy steel, duplex steel, etc., and can be processed according to drawings, samples or foreign-language parameters
- General standard specifications support ordering from 1 piece, shipped within 24 hours after order confirmation, suitable for rush repair material replenishment and sample submission for inspection
| Product Name | BW Butt Weld Reducer |
| Categories | Contact us to confirm |
| Customization | Our factory has full-dimensional customization strength for high-pressure BW butt-weld reducers, which can comprehensively solve the installation problems that standard high-pressure pipe fittings cannot adapt to special processes, special equipment, and special overseas standards, and supports all-round personalized customization of structure, size, material, process, and anti-corrosion. It can customize non-standard reducing ratios, unconventional long and short tapers, ultra-high-pressure thickened wall thickness, and oversized and ultra-special diameter butt-weld reducers as needed, adapting to old high-pressure pipe network renovation, special equipment connection, and special process pipeline engineering. Supports customization of special materials such as carbon steel, stainless steel, alloy steel, duplex steel, heat-resistant steel, etc., meeting the needs of ultra-high temperature, ultra-high pressure, strong corrosion, marine salt spray and other highly demanding working conditions. Can customize special bevel angles, special root face sizes, extended straight pipe section integrated structures, adapting to imported equipment |
| MOQ | Our factory's BW butt-welded reducers adopt a flexible and lenient minimum order model suitable for engineering and foreign trade, accommodating multiple procurement scenarios such as sample submission for inspection, small-order replenishment, bulk engineering, and full foreign trade orders, greatly lowering the procurement threshold for customers. Conventional national standard and American standard general high-pressure stock specifications support a minimum order of 1 piece, with no minimum quantity limit, suitable for high-pressure pipeline emergency repairs, sporadic engineering replenishment, sample submission for inspection, and equip |
| Lead Time | Our factory has professional high-pressure butt-welded pipe fitting production lines and a large stock warehousing base. BW butt-welded reducers have ample production capacity, sufficient inventory, and stable and controllable delivery times, and can precisely match domestic engineering schedules and foreign trade export shipping schedules. For conventional standard stock high-pressure specifications, we ship extremely fast within 24 hours after order confirmation, quickly solving customers' needs for high-pressure pipeline emergency repairs, urgent order replenishment, and expedited sample delivery |
| Packaging | BW butt-welded reducers all use export-grade special protective packaging for high-pressure pipe fittings, providing all-round protection against rust, moisture, bumps, and bevel damage, suitable for high-demand transportation scenarios such as domestic long-distance logistics, container ocean shipping, and foreign trade ocean transport. Before leaving the factory, products are uniformly cleaned and polished to remove burrs and impurities, and the entire surface is sprayed with high-quality industrial anti-rust oil to isolate air and moisture, effectively preventing salt spray corrosion and oxidation rust during storage and long-distance ocean shipping. Small-diameter pipe fittings are fitted with hard plastic bevel protective caps at both ends, tightly sealing the pipe openings, protecting the precision welding bevels from bumps, scratches, and deformation, and preventing dust and debris from entering the pipe. Medium and large diameter pipe fittings are fully wrapped with waterproof stretch film, with key protection for end faces and bevel positions, avoiding friction wear and paint peeling. Conventional specifications use thickened braided |
| Reference Price | Inquiry |
| Standards | GB/T12459, GB/T13401, ASME B16.9, SH/T3408 |
Applications
- Reducing connections for high-temperature and high-pressure pipelines in petroleum refining units and chemical process pipelines
- Pipe diameter transitions for steam pipelines in thermal power plants and heat supply main networks in thermal power plants
- Reducing connections for high-pressure long-distance natural gas transmission pipelines and high-pressure fluid systems in coal chemical plants
- Pre-assembly of inlet and outlet pipelines for boilers, pressure vessels, heat exchange units, pumps, valves, and compressors
- New construction and renovation of municipal central heating high-temperature and high-pressure pipe networks and industrial wastewater treatment high-pressure pipelines
Overview
BW butt welding reducers are reducing pipe fittings with beveled ends on both sides, installed by on-site butt welding. They are used to connect pipes of different diameters and smoothly change the pipeline flow cross-section. The products are divided into two categories: butt welding concentric reducers and butt welding eccentric reducers: the concentric type is suitable for vertical risers, steam and gas pipelines, with the medium transported in the center and a stable flow channel; the eccentric type is divided into top-flat and bottom-flat, used for horizontal pipelines, and can solve the problems of pump inlet cavitation and sewage sedimentation. Compared with threaded and grooved connections, the butt welding structure merges with the pipeline after welding, with high overall strength and good sealing performance, suitable for high-temperature and high-pressure and flammable and explosive medium transportation conditions.
Key Features
Both ends are precision-machined with bevels, the end faces are flat, the butt joint gap is controllable, the welding fusion degree is high, and after forming, the pipeline has strong integrity, no looseness, no leakage, and can operate continuously for a long time. The pipe wall thickness is uniform, the inner and outer walls are smooth, the taper transition is natural, and the flow channel is smooth without dead angles, which helps reduce fluid resistance and turbulent vibration. The product diameter range covers DN15-DN1800, and the wall thickness includes STD/XS/XXS and the full SCH series, and implements standards such as GB/T12459, GB/T13401, ASME B16.9, SH/T3408, etc. The raw materials are seamless steel pipes or steel plates, and after forming they undergo non-destructive flaw detection testing. Customization is supported for materials such as carbon steel, stainless steel, alloy steel, duplex steel, etc., and processing can be done according to drawings, samples, or foreign-language parameters.
Applications
BW butt welding reducers are mainly used for reducing connections in industrial pipelines with high temperature, high pressure, and continuous operation. Industrial scenarios include petroleum refining units, chemical process pipelines, steam pipelines of thermal power plants, heat main networks of thermal power plants, high-pressure long-distance natural gas transmission pipelines, coal chemical units, and high-pressure fluid systems of new energy plants. Municipal scenarios include the construction and renovation of urban central heating high-temperature and high-pressure pipe networks, large municipal water transmission mains, industrial sewage treatment high-pressure pipelines, and high-pressure gas transmission pipelines. Equipment supporting scenarios include boiler inlets and outlets, pressure vessel connections, heat exchange unit pipelines, pump and valve high-pressure units, and compressor inlet and outlet high-pressure pipelines. The concentric type is suitable for vertical risers and gas pipelines, and the eccentric type is suitable for anti-cavitation at pump inlets and anti-siltation in drainage of horizontal pipelines.
Specifications
The products implement standards such as GB/T12459, GB/T13401, ASME B16.9, SH/T3408, etc., the diameter range covers DN15-DN1800, and the wall thickness includes STD/XS/XXS and the full SCH series pressure ratings. Raw materials are processed and formed from seamless steel pipes or steel plates, and standard welding bevels are machined at both ends. Optional materials include carbon steel, stainless steel, alloy steel, duplex steel, and heat-resistant steel. The specific grade, bevel angle, straight pipe section length, and surface treatment method can be confirmed according to project requirements. If non-standard reducing ratios, unconventional long or short tapers, or ultra-high-pressure thickened wall thickness are needed, you are welcome to provide drawings or samples, and we will assist in confirming the configuration and quoting.
Procurement & Delivery
Conventional national standard and American standard general specifications support a minimum order of 1 piece, with no minimum quantity limit, suitable for pipeline emergency repairs, sporadic project replenishment, and sample submission for inspection. Conventional standard in-stock specifications are shipped within 24 hours after order confirmation, and can match domestic project schedules and foreign trade export shipping schedules. The products use export-grade protective packaging specially for high-pressure pipe fittings: small diameters are fitted with hard plastic bevel protective caps at both ends, medium and large diameters are wrapped with waterproof stretch film, conventional specifications are packed in thickened woven bags or high-strength cartons, and large-volume large-diameter products are reinforced and packed on solid wood pallets. Chinese and English foreign trade shipping marks, specification labels, and batch numbers can be customized as needed. For specific delivery times and packaging requirements, please contact us to confirm.
Service & Support
Before sales, we provide working condition analysis, pipeline selection guidance, concentric and eccentric structure recommendation, and pressure rating matching services to help customers select models accurately. During sales, dedicated personnel follow up on the order, synchronizing production progress, flaw detection quality inspection results, and shipping logistics information. Before leaving the factory, products are screened through multiple flaw detection quality inspections. After sales, for quality problems of the product itself, we provide unconditional return and exchange. For internal quality problems such as substandard materials, dimensional deviation, bevel defects, welding defects, etc., we bear the round-trip freight and replace them free of charge. We provide technical guidance for pipeline installation and answers to working condition adaptation questions. For long-term cooperative customers, we establish exclusive files, and they enjoy priority production scheduling and priority shipping. For specific after-sales terms, please contact us to confirm.
FAQ
What pipelines are BW butt welding reducers suitable for?
They are specially used for high-temperature, high-pressure, flammable and explosive industrial pipelines, suitable for petrochemical, power, heating, and natural gas high-pressure process pipelines, and are reducing pipe fittings for long-distance main pipelines and high-pressure connection pipelines of equipment. They are not suitable for low-pressure simple pipelines.
What is the difference between butt welded reducers and ordinary reducers?
BW butt welded type comes with standard welding bevels; after welding, it integrates with the pipeline as one body, with equal strength, zero leakage, higher temperature and pressure resistance, and a safety level higher than threaded, grooved, and low-pressure welded pipe fittings, suitable for continuous operation under high-pressure working conditions.
How to choose between concentric reducers and eccentric reducers?
The concentric type is suitable for vertical risers, steam, and gas pipelines, with the medium conveyed in the center and a stable flow channel; the eccentric type is divided into top-flat and bottom-flat, used for horizontal pipelines, and can solve the problems of pump inlet cavitation and drainage sedimentation. For specific selection, you can contact us for assistance.
Can BW butt welded reducers be customized? What is the minimum order quantity?
We support customization of non-standard reducing ratios, special bevel angles, extended straight pipe sections, special materials, and surface treatments, and can process according to drawings, samples, or foreign-language parameters. Conventional general specifications support a minimum order of 1 piece; for the minimum order quantity and delivery time of customized products, please contact us for confirmation.
What is the delivery time for conventional specifications?
Conventional standard in-stock specifications are shipped within 24 hours after order confirmation, and can match domestic project schedules and foreign trade export shipping schedules. For the delivery time of non-standard customized or large-volume orders, it needs to be confirmed according to the specific specifications and quantities; please contact us to obtain the accurate delivery time.
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