Description
Cast Iron Reducing 90° Elbow
ASC / SCI Fig. 3351R Cast Iron Reducing 90° Elbow provides a 90-degree directional change while transitioning between different pipe sizes in compatible Class 125 threaded piping systems.
Manufactured from cast iron conforming to ASTM A126, the Fig. 3351R features female NPT threaded connections and is available with a black or hot-dip galvanized finish for industrial, commercial, water, and mechanical piping applications.
Product Highlights
- ASC / SCI Fig. 3351R
- Reducing 90° elbow design
- ASTM A126 cast iron
- Class 125 fitting design
- Female NPT connections
- UL/ULC Listed and FM Approved on applicable sizes
Technical Specifications
| Product Type | Cast Iron Reducing 90° Elbow |
|---|---|
| Brand | ASC / SCI |
| Figure | 3351R |
| Configuration | Reducing 90° Elbow |
| Material | Cast Iron |
| Material Standard | ASTM A126 |
| Fitting Standard | ASME B16.4 Class 125 |
| Threads | NPT per ASME B1.20.1 |
| Finish | Black or Hot-Dip Galvanized per ASTM A153 Class A |
| Agency Approvals | UL/ULC Listed and FM Approved on Applicable Sizes |
Construction Details
The SCI Fig. 3351R Reducing 90° Elbow is manufactured from cast iron conforming to ASTM A126 for use in compatible Class 125 threaded piping systems.
Fitting dimensions conform to ASME B16.4 Class 125, while the female connections use NPT threads in accordance with ASME B1.20.1.
The reducing elbow combines a 90-degree change in direction with a size transition, eliminating the need for a separate reducing fitting in many threaded piping layouts.
Reducing Elbow Design & Applications
Reducing Design
- 90° directional change
- Different connection sizes
- Two female NPT ends
- Class 125 construction
- Compact pipe transition
Typical Applications
- Industrial piping systems
- Commercial piping systems
- Water piping applications
- Mechanical piping systems
- Threaded pipe transitions
Installation & Selection Considerations
- Confirm Fig. 3351R is required.
- Verify both connection sizes.
- Confirm Class 125 compatibility.
- Use suitable thread sealant.
- Avoid excessive tightening.
Use the ASC / SCI Fig. 3351R product submittal to confirm cast iron construction, Class 125 requirements, NPT threads, finish options, applicable approvals, and reducing elbow specifications.
Need Help Selecting a Cast Iron Reducing 90° Elbow?
Need help confirming connection sizes, Class 125 requirements, finish, or compatibility with your threaded piping system? The GetPipe.com Team can help.
Frequently Asked Questions
What is the SCI Fig. 3351R?
The Fig. 3351R is a cast iron reducing 90° elbow that changes piping direction while transitioning between different connection sizes.
What material is the reducing elbow?
The Fig. 3351R is manufactured from cast iron conforming to ASTM A126.
What fitting class is the Fig. 3351R?
The fitting dimensions conform to ASME B16.4 Class 125 requirements.
What type of threads does the elbow use?
The fitting uses female NPT threaded connections conforming to ASME B1.20.1.
What does a reducing 90° elbow do?
It combines a 90-degree directional change with a transition between two different pipe connection sizes.
What finishes are available?
The Fig. 3351R is available in black or hot-dip galvanized finishes, with the galvanized finish conforming to ASTM A153 Class A.
Is the Fig. 3351R UL/ULC Listed and FM Approved?
Applicable Fig. 3351R sizes are UL/ULC Listed and FM Approved. Confirm the required size against current ASC approval information.
What should I confirm before ordering?
Confirm both connection sizes, NPT compatibility, Class 125 requirements, and the required finish.
Important Ordering & Installation Notes
- Confirm Fig. 3351R configuration.
- Verify both connection sizes.
- Select the required finish.
- Apply suitable thread sealant.
- Avoid excessive installation torque.
