ASC
Class 150 Black Malleable Iron Reducing Couplings
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- SKU:
- 3121R
- Availability:
- Usually Ships Same Day
- Weight:
- 0.00 LBS
*Images are for visual reference only.
Frequently bought together:
Description
Join two different nominal pipe sizes in a straight line with a reducing coupling.
Product details / technical specifications
| Manufacturer | SCI / ASC Engineered Solutions |
|---|---|
| Figure | 3121R |
| Material | Malleable iron (ASTM A197) |
| Finish | Black |
| Connection | Female NPT |
| Pressure class | Class 150; allowable pressure depends on temperature and service |
| Thread standard | ASME B1.20.1 NPT |
| Dimensional standard | ASME B16.3 |
| Size selection | Select the available nominal pipe size or complete size combination above |
| Dimensions / unit weight | Size-specific; see the matching manufacturer table linked below |
Choose the right connection
Choose both nominal sizes in the size pair. This fitting connects two different sizes in a straight line.
Technical documents / view or print
Open the product table to review size-specific dimensions and weights. PDF links open in a new tab and can be printed from your PDF viewer.
View / Print Figure 3121R Submittal (PDF) ↗View Product Catalog Page (PDF) ↗Material / Thread Specifications (PDF) ↗Material Compliance Certificate (PDF) ↗Frequently asked questions
How do I choose the right connection?
Choose both nominal sizes in the size pair. This fitting connects two different sizes in a straight line.
Where are the dimensions and weight?
Use the manufacturer table for the selected nominal size. Dimensions and unit weight vary by size; the image is a product-family reference.
Can I use this for any fluid or service?
Confirm material compatibility, thread arrangement, service conditions and the applicable manufacturer rating before selecting the fitting.
Does Class 150 mean 150 PSI in every application?
No. Pressure class is not one universal working-pressure limit. Allowable pressure depends on temperature, size, material and service; use the applicable manufacturer rating.
Before you order
Choose both nominal sizes in the size pair. This fitting connects two different sizes in a straight line. Confirm the complete size selection, thread compatibility, operating temperature and required service rating.
Manufacturer SKU and packaging reference
Carton quantities are manufacturer packaging references, not an order minimum. Use the linked manufacturer documentation for technical dimensions.
| SKU | Size | Figure | UPC | Carton qty | Manufacturer description |
|---|---|---|---|---|---|
| 0810084806 | 1/4 | 3121R | 690291878435 | 50 | 1/4X1/8 BLK IMI REDUCER |
| 0810085019 | 3/8 | 3121R | 690291878459 | 30 | 3/8X1/4 BLK IMI REDUCER |
| 0810085209 | 3/8 | 3121R | 690291878442 | 35 | 3/8X1/8 BLK IMI REDUCER |
| 0810085407 | 1/2 | 3121R | 690291878480 | 40 | 1/2X3/8 BLK IMI REDUCER |
| 0810085605 | 1/2 | 3121R | 690291878473 | 50 | 1/2X1/4 BLK IMI REDUCER |
| 0810085811 | 1/2 | 3121R | 690291878466 | 50 | 1/2X1/8 BLK IMI REDUCER |
| 0810086009 | 3/4 | 3121R | 690291878510 | 60 | 3/4X1/2 BLK IMI REDUCER |
| 0810086207 | 3/4 | 3121R | 690291878503 | 30 | 3/4X3/8 BLK IMI REDUCER |
| 0810086405 | 3/4 | 3121R | 690291878497 | 30 | 3/4X1/4 BLK IMI REDUCER |
| 0810086611 | 3/4 | 3121R | 690291885259 | 35 | 3/4X1/8 BLK IMI REDUCER |
| 0810086819 | 1 | 3121R | 690291878558 | 25 | 1X3/4 BLK IMI REDUCER |
| 0810087007 | 1 | 3121R | 690291878541 | 30 | 1X1/2 BLK IMI REDUCER |
| 0810087205 | 1 | 3121R | 690291878534 | 30 | 1X3/8 BLK IMI REDUCER |
| 0810087411 | 1 | 3121R | 690291878527 | 45 | 1X1/4 BLK IMI REDUCER |
| 0810087619 | 1 1/4 | 3121R | 690291878589 | 15 | 11/4X1 BLK IMI REDUCER |
| 0810087809 | 1 1/4 | 3121R | 690291878572 | 25 | 11/4X3/4 BLK IMI REDUCER |
| 0810088005 | 1 1/4 | 3121R | 690291878565 | 25 | 11/4X1/2 BLK IMI REDUCER |
| 0810088211 | 1 1/2 | 3121R | 690291878626 | 12 | 11/2X11/4 BLK IMI REDUCER |
| 0810088419 | 1 1/2 | 3121R | 690291878619 | 25 | 11/2X1 BLK IMI REDUCER |
| 0810088609 | 1 1/2 | 3121R | 690291878602 | 15 | 11/2X3/4 BLK IMI REDUCER |
| 0810088807 | 1 1/2 | 3121R | 690291878596 | 20 | 11/2X1/2 BLK IMI REDUCER |
| 0810089011 | 2 | 3121R | 690291878671 | 9 | 2X11/2 BLK IMI REDUCER |
| 0810089219 | 2 | 3121R | 690291878664 | 9 | 2X11/4 BLK IMI REDUCER |
| 0810089409 | 2 | 3121R | 690291878657 | 12 | 2X1 BLK IMI REDUCER |
| 0810089607 | 2 | 3121R | 690291878640 | 12 | 2X3/4 BLK IMI REDUCER |
| 0810089805 | 2 | 3121R | 690291878633 | 12 | 2X1/2 BLK IMI REDUCER |
| 0810090019 | 2 1/2 | 3121R | 690291878701 | 7 | 21/2X2 BLK IMI REDUCER |
| 0810090209 | 2 1/2 | 3121R | 690291878695 | 7 | 21/2X11/2 BLK IMI REDUCER |
| 0810090407 | 2 1/2 | 3121R | 690291878688 | 10 | 21/2X11/4 BLK IMI REDUCER |
| 0810090811 | 3 | 3121R | 690291878756 | 5 | 3X21/2 BLK IMI REDUCER |
| 0810091009 | 3 | 3121R | 690291878749 | 6 | 3X2 BLK IMI REDUCER |
| 0810091207 | 3 | 3121R | 690291878732 | 6 | 3X11/2 BLK IMI REDUCER |
| 0810091405 | 3 | 3121R | 690291878725 | 6 | 3X11/4 BLK IMI REDUCER |
| 0810091611 | 3 | 3121R | 690291878718 | 6 | 3X1 BLK IMI REDUCER |
| 0810092619 | 4 | 3121R | 690291878794 | 3 | 4X3 BLK IMI REDUCER |
| 0810092809 | 4 | 3121R | 690291878787 | 3 | 4X21/2 BLK IMI REDUCER |
| 0810093005 | 4 | 3121R | 690291878770 | 3 | 4X2 BLK IMI REDUCER |
| 0810093211 | 4 | 3121R | 690291878763 | 3 | 4X11/2 BLK IMI REDUCER |
Need help choosing a fitting? Ask the GetPipe team or call 1-800-410-4625.
