Service Metal
Carbon Steel - Weld Eccentric Reducer
- SKU:
- SER
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
Description
Carbon Steel Weld Eccentric Reducer
Carbon Steel Weld Eccentric Reducers are designed to connect pipes of different diameters while maintaining an offset centerline. This eccentric configuration is commonly used in horizontal piping systems where maintaining a consistent top or bottom pipe level can help manage flow and reduce unwanted air or vapor accumulation.
Manufactured from durable carbon steel, these butt weld reducers provide a permanent welded transition for industrial, commercial, mechanical, and process piping applications. Available in Standard, Extra Heavy, and Schedule 160 options, they are ideal for systems requiring strength, weldability, and dependable pipe-size transitions.
Product Highlights
- Carbon steel butt weld eccentric reducer
- Connects pipes of different diameters
- Offset design maintains one side of the piping transition
- Well suited for horizontal piping installations
- Helps reduce unwanted air accumulation when properly oriented
- Provides a permanent welded pipe-size transition
- Available in Standard, Extra Heavy, and Schedule 160 options
- Seamless butt weld fittings conform to ASTM A/SA234 WPB through 24"
- Weld fitting dimensions conform to ASME/ANSI B16.9, B16.11, and B16.28 through 24"
- Weld fitting dimensions larger than 24" conform to MSS-SP-48
- Carbon content not to exceed 0.25% maximum
- Manufacturing facilities are ISO certified
- Mill Test Reports available with every order
Technical Specifications
| Product Type | Eccentric Reducer |
|---|---|
| Material | Carbon Steel |
| Connection Type | Butt Weld |
| Configuration | Offset Pipe Size Transition |
| Primary Function | Connects Different Pipe Diameters |
| Typical Orientation | Horizontal Piping Systems |
| Available Wall Options | Standard, Extra Heavy, Schedule 160 |
| Material Specification | ASTM A/SA234 WPB through 24" |
| Dimensional Standards | ASME/ANSI B16.9, B16.11, and B16.28 through 24" |
| Dimensions Over 24" | MSS-SP-48 |
| Maximum Carbon Content | 0.25% |
| Manufacturing | ISO-Certified Facilities |
| Material Documentation | Mill Test Reports Available with Every Order |
Eccentric Reducer Configuration
Large End
The larger butt weld end connects to the larger nominal pipe size in the piping system.
Offset Transition
The reducer transitions between pipe sizes with an offset profile rather than keeping both pipe centerlines aligned.
Small End
The smaller butt weld end completes the transition to the reduced nominal pipe size.
Construction Details
Carbon steel weld eccentric reducers are designed for installation between compatible butt weld pipe and piping components of different diameters. Welding both ends into the piping system creates a permanent transition without threaded or mechanical joints.
Unlike a concentric reducer, the eccentric design offsets the centerline of the smaller connection. This allows one side of the piping transition to remain level, making eccentric reducers particularly useful in horizontal piping layouts.
Why Choose an Eccentric Reducer?
Horizontal Pipe Size Transitions
- Connects different pipe diameters
- Offset configuration maintains one side of the transition
- Well suited for horizontal piping layouts
- Can help reduce unwanted air or vapor pockets when properly oriented
- Provides a compact pipe-size transition
Permanent Welded Connection
- Designed for compatible butt weld piping
- No threaded connection required
- Suitable for industrial and mechanical piping systems
- Available in multiple wall thickness options
- Supports fabricated piping assemblies
Eccentric vs. Concentric Reducers
Eccentric Reducer
An eccentric reducer uses an offset transition between the large and small pipe sizes. This allows one side of the piping transition to remain level and is commonly useful in horizontal piping systems.
Concentric Reducer
A concentric reducer transitions symmetrically around the pipe centerline, keeping the larger and smaller connections centered with one another.
Typical Applications
Industrial & Mechanical Piping
- Industrial process piping
- Mechanical piping systems
- Plant utility piping
- Equipment connections
- Fabricated piping assemblies
Horizontal Piping Systems
- Horizontal pipe-size transitions
- Pump and equipment piping
- Distribution piping
- Commercial mechanical systems
- General carbon steel piping systems
Wall Thickness Options
Standard
Standard wall eccentric reducers are available for compatible piping systems requiring conventional wall construction.
Extra Heavy
Extra Heavy options provide increased wall thickness for piping applications requiring heavier-duty construction.
Schedule 160
Schedule 160 options are available for compatible applications requiring substantially heavier wall thickness.
Ask Willy: Need Pipe Size Help?
Use our common pipe diameters and wall thickness chart to confirm large-end size, small-end size, and wall thickness before ordering carbon steel weld eccentric reducers. You can also review the weld reducer dimensional sheet below.
Standards & Documentation
ASTM Material Standard
Seamless butt weld fittings conform to ASTM A/SA234 WPB through 24".
Dimensional Standards
Weld fitting dimensions conform to ASME/ANSI B16.9, B16.11, and B16.28 through 24". Dimensions larger than 24" conform to MSS-SP-48.
Material Traceability
Mill Test Reports are available with every order, providing supporting material documentation for applicable project requirements.
Need More Carbon Steel Weld Fittings?
Browse our complete selection of carbon steel weld fittings, including eccentric reducers, concentric reducers, elbows, tees, laterals, caps, and other butt weld fittings.
Frequently Asked Questions
What is a carbon steel weld eccentric reducer?
An eccentric reducer is a butt weld fitting used to connect pipes of different diameters with an offset transition between the larger and smaller pipe connections.
How is an eccentric reducer different from a concentric reducer?
An eccentric reducer has an offset profile that allows one side of the transition to remain level. A concentric reducer transitions symmetrically around the pipe centerline.
Why are eccentric reducers used in horizontal piping?
The offset configuration allows the piping transition to maintain a consistent top or bottom level depending on installation orientation. This can help manage air or vapor accumulation in applicable horizontal piping systems.
What type of connection does this fitting use?
This fitting uses butt weld connections and is welded to compatible carbon steel pipe or piping components.
What wall thickness options are available?
The supplied product information lists Standard, Extra Heavy, and Schedule 160 options.
What material specification applies?
Seamless butt weld fittings conform to ASTM A/SA234 WPB through 24".
What dimensional standards apply?
The supplied information states that weld fitting dimensions conform to ASME/ANSI B16.9, B16.11, and B16.28 through 24", with fittings larger than 24" conforming to MSS-SP-48.
What is the maximum carbon content?
The supplied product information states that carbon content does not exceed 0.25% maximum.
Are Mill Test Reports available?
Yes. Mill Test Reports are available with every order according to the supplied product information.
What should I verify before ordering?
Confirm the large-end pipe size, small-end pipe size, required wall thickness, reducer orientation, material requirements, and applicable piping-system specifications before ordering.
Important Ordering & Installation Notes
- Confirm both the large-end and small-end nominal pipe sizes before ordering.
- Confirm the required wall thickness: Standard, Extra Heavy, or Schedule 160.
- This fitting uses butt weld connections.
- Confirm the required eccentric reducer orientation for the piping system before installation.
- Verify carbon steel compatibility with the intended piping service.
- Confirm applicable pressure, temperature, dimensional, and project requirements.
- Use qualified welding procedures and personnel as required by the applicable piping code or project specification.
- Inspect fitting ends and adjoining pipe before fit-up and welding.
- Confirm proper alignment and orientation before completing the welded connections.
- Mill Test Reports are available with every order.
- Refer to the dimensional PDF for fitting-specific measurements before fabrication.
