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11/4X1 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:
- 1.25
- Size 2:
- 1
- Strength:
- STD
- 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:
- 0.68 lbs
ASC Engineered Solutions 310087606 – Frequently Asked Questions
1) Is the ASC 1-1/4 x 1 black malleable iron reducer threaded female on both ends?
Both ends are FPT, so the 1-1/4 inch side and the 1 inch side each take male pipe threads. Threads are cut to ASME B1.20.1 (NPT), so it mates with standard black steel or malleable iron nipples and pipe. If you need a male-by-female transition, a reducing bushing is the fitting to look for instead, not this coupling-style reducer.
2) Can I use this malleable iron reducer on a fire sprinkler line?
It carries a UL/FM listing, which is what an inspector looks for on fire protection piping. It is standard weight (STD) malleable iron to ASTM A-197 with dimensions and pressure rating per ASME B16.3. Confirm the listed pressure class suits the working pressure of your system before you thread it in.
3) Is black malleable iron OK for potable water?
No. Black malleable iron fittings like this 1-1/4 x 1 reducer are for gas, air, and fire protection or other non-potable service. The black finish is an uncoated mill finish with no corrosion protection, so it will rust in wet potable lines. For water, galvanized, copper, or brass is the route.
4) Will this reducer meet a spec calling out ASME B16.3 threaded malleable iron fittings?
Yes. Dimensions and pressure rating are both to ASME B16.3, material is ASTM A-197 malleable iron, and threads are ASME B1.20.1. That is the standard call-out trio on a commercial mechanical drawing for Class 150 threaded black iron.
5) Do I need a bushing and a coupling, or does this one fitting do the reduction?
One fitting does it. This is a reducing coupling: female 1-1/4 inch on one end, female 1 inch on the other, so you thread pipe or a nipple straight into each side. No separate bushing needed. Use a bushing only when you are reducing inside an existing female port.
6) Can I use a standard weight black iron reducer on a gas line?
Standard weight malleable iron threaded fittings are the normal choice for black iron gas piping, and this 1-1/4 x 1 reducer is STD weight with NPT threads per ASME B1.20.1. Use a gas-rated thread sealant on the male threads, and check that your local code accepts threaded malleable iron at the size and pressure you are running.
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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 310087606 come with a warranty?
Absolutely. The ASC Engineered Solutions 310087606 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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