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11/2X11/4 XH BLK MI REDUCER
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 1.5
- Size 2:
- 1.25
- Strength:
- XH
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Reducers
- Product Type:
- Reducer
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 1.78 lbs
ASC Engineered Solutions 310543806 – Frequently Asked Questions
1) What size pipe does the ASC Engineered Solutions black malleable iron reducing coupling connect?
It joins 1-1/2 inch pipe down to 1-1/4 inch, with female pipe threads (FPT) on both ends. Both ends are threaded, so it screws onto male-threaded pipe on each side rather than being welded or soldered.
2) Will this malleable iron reducer thread onto standard NPT pipe?
Yes. The threads are made to ASME B1.20.1, which is the NPT standard, so it mates with ordinary threaded black or galvanized steel pipe of the matching size. The fitting itself is built to ASME B16.3 for dimensions and pressure rating, so it drops into a standard threaded fitting takeout.
3) Is this reducer approved for fire sprinkler piping?
It carries UL/FM approval, so it can be used on listed fire protection piping where UL Listed and FM Approved threaded malleable iron fittings are required. It is extra heavy (Class 300) black malleable iron with NPT threads, which is the usual spec on sprinkler mains and risers.
4) Can I use a black malleable iron reducer on a domestic water line?
No. Black malleable iron is for gas, fire protection, steam, and non-potable service. The black finish has no corrosion coating for wet potable use, and black iron is not used for drinking water. For potable water on threaded pipe, use galvanized or a copper/PEX transition instead.
5) What does XH mean on a black malleable iron reducer, and do I need it?
XH is extra heavy, the Class 300 malleable iron rating, with heavier wall than the standard Class 150. Use it where the job spec calls for extra heavy fittings or where working pressure on the line exceeds what standard weight covers. Pressure ratings for both classes come from ASME B16.3. If your drawing just says standard weight threaded fittings, a Class 150 reducing coupling is the cheaper match.
6) What grade of malleable iron is this ASC reducer made from?
The casting is made to ASTM A-197, the standard for cupola malleable iron used in threaded pipe fittings. That material spec, combined with ASME B16.3 dimensions, is what lets it be swapped for any other conforming extra heavy malleable iron reducing coupling of the same size.
7) How much does the 1-1/2 x 1-1/4 extra heavy black reducer weigh?
1.78 lbs each. Worth knowing if you are estimating hanger spacing and support loads on a run with several extra heavy fittings, since Class 300 castings are noticeably heavier than standard weight.
8) What is the manufacturer part number for this ASC reducing coupling?
ASC Engineered Solutions part number 310543806, the 1-1/2 x 1-1/4 inch extra heavy black malleable iron reducer.
How fast can I get the ASC Engineered Solutions 310543806 delivered?
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Can I return it if it doesn’t work for me?
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ASC Engineered Solutions 310543806 come with a warranty?
Absolutely. The ASC Engineered Solutions 310543806 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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