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3X11/2 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:
- 3
- Size 2:
- 1.5
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Reducers
- Product Type:
- Reducer
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 3.02 lbs
ASC Engineered Solutions 310091202 – Frequently Asked Questions
1) What size pipe does the ASC 310091202 black malleable iron reducing coupling connect?
It joins 3 inch pipe down to 1-1/2 inch pipe. Both ends are female pipe thread (FPT), so it threads directly onto male-threaded pipe ends on each side. No bushing or extra adapter is needed to make that 3 to 1-1/2 step in one fitting.
2) Will this reducer thread onto standard NPT pipe?
Yes. The threads are cut to ASME B1.20.1, which is the standard American taper pipe thread spec (NPT), so it mates with ordinary NPT-threaded black or galvanized steel pipe. Use pipe dope or PTFE tape on the male threads as usual.
3) Is this reducer approved for fire sprinkler piping?
It carries UL/FM approval, so it is acceptable for fire protection piping where a listed malleable iron threaded fitting is called for. It is a standard weight (STD) black malleable iron fitting dimensioned and pressure rated to ASME B16.3.
4) Black malleable iron or galvanized - which do I need for this 3 x 1-1/2 reducer?
This one is the black finish. Black malleable iron is the usual choice for gas piping, fire sprinkler lines, and closed-loop hydronic heating where the water is not continuously refreshed. For open potable water or wet exterior runs where corrosion is a concern, galvanized is the normal call instead. The iron itself is ASTM A-197 malleable iron either way.
5) Will this malleable iron reducer fit in the same space as my old 3 x 1-1/2 fitting?
Its face-to-face and thread engagement dimensions follow ASME B16.3, which is the standard all malleable iron threaded fittings are built to. So a B16.3 3 x 1-1/2 reducing coupling from another maker takes up the same laying length and swaps in one for one on the same pipe nipples.
6) Can I use this reducer on copper or PEX?
No. It is a threaded malleable iron fitting with FPT sockets on both ends, made to ASME B1.20.1 pipe thread. It only accepts male-threaded iron or steel pipe. To get to copper or PEX you would thread a male adapter of that material into the appropriate end.
7) What is the ASC part number for the 3 x 1-1/2 black reducing coupling?
Order it as ASC Engineered Solutions 310091202. That is the black malleable iron reducer, 3 inch by 1-1/2 inch, standard weight, threaded both ends.
How fast can I get the ASC Engineered Solutions 310091202 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ASC Engineered Solutions 310091202 come with a warranty?
Absolutely. The ASC Engineered Solutions 310091202 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ASC Engineered Solutions 310091202?
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