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Fitting Type: Butt Weld Eccentric Reducer

Connections: Butt Weld Ends (ASME B16.25 Beveled)

Standards: ASME B16.9, GOST 17378
Material: ASTM A234 WPB Carbon Steel (Seamless), Stainless Steel, Alloy Steel

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Butt Weld Eccentric Reducer | A234 WPB Carbon Steel Pipe Fittings

A buttweld eccentric reducer is a type of pipe fitting used to connect two pipes of different diameters while maintaining the same bottom line. Unlike concentric reducers, which are symmetrical, an eccentric reducer has an edge parallel to the connecting pipe, making it ideal for applications where air pockets or drainage are concerned.



Key Specifications

Fitting Type: Butt Weld Eccentric Reducer


Connections: Butt Weld Ends (ASME B16.25 Beveled)


Standards: ASME B16.9, GOST 17378


Material: ASTM A234 WPB Carbon Steel (Seamless), Stainless Steel, Alloy Steel



Technical Specifications

Specification Details
Product Name Butt Weld Eccentric Reducer
Size Range 1/2â?³ to 48â?³ (DN15 â?? DN1200); Larger sizes available
Wall Thickness Sch 10, Sch 20, Sch 40 (STD), Sch 80 (XS), Sch 160, XXS (2mm-32mm)
Manufacturing Seamless (up to 24â?³) & Welded (Large Diameter)
Surface Treatment Black Paint, Anti-rust Oil, Galvanized, or Pickled

Material Grades Available


Carbon Steel: ASTM A234 WPB (Standard for high-temp), ASTM A420 WPL6 (Low-temp).

Stainless Steel: ASTM A403 WP304/304L, WP316/316L (Chemical/Water treatment).

Alloy Steel: ASTM A234 WP11, WP22, WP5, WP91 (High-pressure/High-temp).

Duplex Steel: ASTM A815 UNS S31803, S32205.


Comparison: Concentric vs. Eccentric Reducer

Concentric Reducer: Centerline remains consistent. Used when fluid flow is relatively uniform and pressure drop is minimized.


Eccentric Reducer: One side is flat (maintains bottom/top alignment), preventing cavitation. Ideal for constant flow or gravity feed.


Carbon steel Buttweld Concentric vs. Eccentric Reducers


Why Choose Our Butt Weld Eccentric Reducers?


Optimized for Pump Suction: Prevents air bubble accumulation, eliminating cavitation risks.

Robust Leak-Proof Connections: Butt weld bonds ensure structural integrity under high pressure and vibration.

Precision Beveling: Machine-beveled ends (ASME B16.25) ensure faster, cost-effective field welding.

Rigorous Quality Testing: Includes Hydrostatic testing, NDT (UT, RT, MT), and PMI material verification.



FAQ

Q: When should I use an Eccentric Reducer instead of a Concentric one?

A: Use in horizontal piping systems, specifically at the pump suction side to prevent air traps.


Q: Do you supply seamless eccentric reducers?

A: Yes, seamless up to 24 inches; larger diameters are welded with X-ray inspection.




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The aluminum fins are embedded in a spiral groove about 0.25~0.5mm deep on the surface of the steel pipe, while the metal extruded from the spiral groove is rolled back to the fin root. This specialized manufacturing process is a hallmark of high-performance G finned tubes.

The biggest advantage of this G fin tube is that it has good thermal performance, the working temperature can reach 350-400, and the fin temperature can reach 260, and the maximum use temperature of G type finned tube is 350 as stipulated in GB/T 15386-94, the national standard of air cooler.

The disadvantage is that the fins and tubes of the two metals in the atmosphere are prone to electrochemical corrosion, poor corrosion resistance and high cost. The tube wall has stress concentration and cannot be used for medium and high pressure applications. If the pressure is not squeezed well (the edge of the spiral groove is not close to the aluminum sheet), its heat transfer performance is worse than any finned tube.

G-Type finned tubes, also known as grooved finned tubes or embedded-fin tubes, are one of finned tube types where the "G" stands for grooved. These tubes are formed by twisting a fin strip, typically made of copper or aluminium, into a machined groove on the outer surface of the tube. The fin strip is then back-filled to securely lock it in place, ensuring a tight fit. The base tube material is completely surrounded and filled by the fins.

The specific materials, dimensions, and groove designs of G finned tubes can vary depending on the application requirements and operating conditions. Factors such as fluid characteristics, operating temperature, and pressure influence the selection of materials to ensure optimal heat transfer performance.

In summary, G-Type finned tubes are a robust and effective solution for high-temperature heat transfer applications. Their grooved design and secure locking mechanism provide strength and durability, enabling efficient heat exchange and contributing to overall system performance.

Why G-type Finned Tube?
Grooved finned tubes offer several advantages. The grooved design significantly increases the surface area of the tube, enhancing heat transfer efficiency. These G type fin tubes provide excellent strength and durability, making them suitable for applications requiring high-temperature heat transfer. The tight fit of the fins ensures efficient heat dissipation or absorption.

Grooved finned tubes are typically made of materials like copper or aluminium. The selection of the material depends on factors such as the application requirements, operating temperature, and compatibility with the working fluid.

The grooved design of the fins increases the surface area of the tube, allowing for better heat transfer. This enhanced surface area facilitates efficient heat dissipation or absorption, leading to improved overall heat transfer performance.

ASME B16.9 Butt Weld Eccentric Reducer
Seamless eccentric reducer for butt welding
Sch40 (Std) weight wall thickness
Made of black ASTM A234 WPB carbon steel Material
Conforms to the ASME B16.9 standard for butt weld fittings.

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+8618003119682

Key applications include:
1. Sewage and Wastewater Systems: Employed to prevent the buildup of air pockets and facilitate smooth flow in sewage and wastewater pipelines.
2. Pumping Systems: Integrated into pump discharge lines to prevent air entrapment and ensure efficient operation.
3. Slurry Transport: Used in pipelines transporting abrasive slurries, where air pockets can cause blockages or pump cavitation.
4. Chemical Processing: Utilized in chemical plants for applications requiring controlled fluid flow and avoidance of air pockets.

Product color White
Product size 1000 X 120 X550 MM
Product Weight 12.5KG
Product introduction: The product consists of a heating element and a shell. The heating element is heated by nickel-chromium alloy wire and the aluminum fins dissipate heat. The shell is made of high manganese carbon steel.

Heavy duty cable tray is a robust, structured support system engineered to securely hold and route large, high-weight, or high-voltage cables in demanding industrial, commercial, or infrastructure settings such as power plants, manufacturing facilities, or large-scale data centers. Unlike standard cable trays, it features reinforced materials (e.g., thick-gauge steel, aluminum alloys) and sturdy designs (e.g., deep troughs, reinforced side rails) to withstand extreme loads, environmental stress (like corrosion, temperature fluctuations), and mechanical impacts.

The core purpose of a heavy-duty cable tray is to ensure safe, organized cable management: it prevents cable sagging, damage, or disconnection that could cause power outages, equipment failure, or safety hazards. Additionally, it simplifies cable inspection, maintenance, and future expansions, as cables are neatly contained and accessible. By bearing heavy cable bundles (often weighing hundreds of pounds), the heavy-duty cable tray maintains system reliability in critical applications where standard trays would be insufficient.Features of Heavy Duty Cable Tray
Heavy-duty cable tray supports and protects large volumes of power or control cables in industrial settings. Its primary function is to provide a rigid, secure pathway for organized cable management and easy access.

Constructed from steel, stainless steel, or aluminum, a heavy-duty cable tray offers exceptional strength and longevity. It is designed to withstand harsh environments, including exposure to moisture, chemicals, and extreme temperatures.

Its key advantages include superior load-bearing capacity, durability, and fire resistance. This system simplifies installation and future modifications, significantly reducing maintenance costs over its lifespan.

Heavy-duty cable tray is essential in power plants, manufacturing facilities, and data centers. It is also used in transportation infrastructure and chemical processing plants for reliable, safe cable support.

For more information about pvc cable management system, please feel free to contact us!

Flanged Hard-Seal Gate Valve
Metal Seated Gate Valve for High Pressure & Temperature | Flanged Gate Valve Supplier

The Flanged Hard Seal Gate Valve is a heavy-duty industrial valve designed for reliable shut-off in high-pressure and high-temperature pipeline systems. Featuring a metal-to-metal sealing structure, this valve ensures excellent durability, wear resistance, and long service life in demanding environments.

With a full bore design and flanged connection, it provides low flow resistance and stable sealing performance, making it ideal for water, oil, gas, steam, and industrial fluid control systems.
Standards & Certifications

Our  gate valves  are manufactured in compliance with international standards:
 Design Standard: API 600 / GB/T 12234


 Face to Face: GB/T 12221 / EN 558


 Flange Standard: ANSI B16.5 / DIN / BS


 Test & Inspection: API 598 / GB/T 13927

Product Features and Advantages
Pressure and wear resistant, adaptable to harsh working conditions : The metal-to-metal sealing structure is wear resistant, high temperature resistant, and high pressure resistant, making it suitable for oil, gas, steam, corrosive media, etc.
Long service life and reliable sealing : Even after long-term operation, the metal sealing surface wears slowly and can still maintain good sealing and pressure resistance.
�·�  � Wide range of pipe diameters and pressure ratings : capable of producing pipes from small diameters to large diameters, and multiple pressure ratings (PN/Class) to meet various industrial design requirements.
Compatible with a variety of materials and standards : carbon steel, stainless steel, alloy steel, ductile iron and other materials are available, and it supports DIN / ANSI / API / GB and other standards.

Size Specifications and Standards

Wide range of specifications are available, from small DN 50-100 to large DN 600+, all customizable.
Pressure ratings cover PN10 / PN16 / PN25 / higher (depending on material and structural design).
 Flange connections meet international standards such as ANSI, DIN, BS, and API , and are compatible with international projects.

Functions and Applications

Hard-seal gate valves are mainly used in: oil and gas pipelines, petrochemical plants, high-pressure steam systems, industrial chemical pipelines, high-temperature and high-pressure systems, power plant steam pipelines, heavy industrial conveying systems, and other scenarios. They are particularly suitable for systems requiring high pressure, high temperature, wear resistance, corrosion resistance, and long-term stable operation.

Product: Factory based Steel Pipe Elbows
Size: DN 15-DN 2400, 1/2" -96"
Surface Treatment: Black Painting, Transparent Anti-rust Oil, Sand Blast
Standard in Stock: ASME, EN, DIN, JIS, GOST
Material in Stock: Carbon steel, Mild steel, LTCS, Alloy Steel
Monthly Output: 500 Tons Including Medium and Low Pressure
Thickness: SCH 20, STD, SCH 40, SCH60, XS, SCH 80, SCH 160, XX

We specializes in producing hot dipped galvanized zinc coating steel coil building.
Material ( Z40,Z60,Z80,Z120,Z180,Z275 )

Uses: steel pipes used in pipeline transportation system in the petroleum and natural gas industries.
Grades:PSL1:L245 or B- L485 or X70
PSL2:L245N or BN- L415N or X60N,
L245Q or BQ - L555Q or X80Q, L245M or BM -
L555M or X80M.
Process of manufacture: Seamless/ Welded
Dimension: OD: 33.4 - 1422M

The main production equipments of company include:a¦Õ180 automatic pipe rolling line,3 sets of hot rolling-piercing mills,16 interactive double-rod cold-drawing machines and a number of automatic rotary pointer,straightening machines,water-free annealing furnacesand auxiliary production equipments for surface acid pickling and coating etc. Its physical and chemical labs can conduct various physical and chemical tests and experiments for steel pipes,and are equipped with eddy current flaw detectors,leakage fault detection and ultrasonic crack detectors etc. for high,medium and low pressure seamless steel pipes and petroleum casing pipes with a full its main products include8 series:seamless steel pipes for use in low and medium pressure boilers,petroleum casing pipes,ships,fluid conveyance,petroleum cracking,chemical fertilizer equipments,structures,and hollowpumping rods.It can produce seamless steel pipes according to the standards such as GB ASTM API 5L API 5CT DIN and JIS.Its products have been sold around China and exported to over dozens of countries and regions in the world such as Southeast Asia,the Middle East, Europe and America etc., enjoying the very high prestige in the domestic and foreign markets.


sch40 sch80 6M

ASTM A106 pipe (also covered in ASME specifications as S/A 106) is the standard specification for seamless carbon steel pipe for high-temperature service. Most common uses are in refineries and plants when gasses or fluids are transported at high temperatures and pressures. HebeiChongsheng Special Steel Pipe CO., Ltd. is a world leader in the supply of A106 / SA 106 pipe and stocks a full range of grades B/C in a size rage of NPS 1/8" to NPS 48", with nominal (average) wall thickness as given in ANSI B36.10. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification*. Pipe ordered under this specification shall be suitable for bending, for flanging, for welding, and for similar forming operations. A full range of A106 stock is available in Schedules 10 through 160, STD, XS, XXS. Unscheduled wall thicknesses available up to 4 inches.


sch40 sch80 6M

Steel pipe.