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11/2X3/4 GALV MI REDUCER
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- Finish Specification:
- ASTM A-153
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 1.5
- Size 2:
- 0.75
- 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:
- Galvanized
- Product Material:
- Malleable Iron
- Product Weight:
- 0.9 lbs
ASC Engineered Solutions 311088603 – Frequently Asked Questions
1) What pipe sizes does the ASC Engineered Solutions galvanized malleable iron reducer connect?
It steps 1-1/2 inch down to 3/4 inch. Both ends are female pipe thread (FPT), so it threads onto male-threaded pipe or nipples on each side, not into a female port. Part number 311088603.
2) Will this reducer thread onto standard NPT pipe?
Yes. The threads are cut to ASME B1.20.1, which is the standard US taper pipe thread spec, so it mates with ordinary NPT-threaded steel or iron pipe. Overall dimensions follow ASME B16.3 for malleable iron threaded fittings, so it drops into a run built to that standard.
3) Is this reducer approved for fire sprinkler piping?
It carries UL/FM approval, so it is acceptable for fire protection piping where the authority having jurisdiction requires listed fittings. It is a standard weight (STD) galvanized malleable iron fitting rated per ASME B16.3.
4) Can I use a galvanized malleable iron reducer on a wet sprinkler or water line without it rusting out?
The galvanizing is hot dip to ASTM A-153, which is the heavier zinc coating spec used on threaded fittings for corrosion service. The body is malleable iron to ASTM A-197. That combination is what gets specified for galvanized water and fire protection lines rather than plain black iron.
5) Do I need a bushing or a reducing coupling to go from 1-1/2 inch to 3/4 inch?
This part is a reducing coupling, not a bushing. Both ends are female threaded, so it joins male pipe ends on both sides. A bushing is male on the large end and threads into a female port instead, so if you are reducing inside an existing female fitting, a bushing is what you want rather than this.
6) Is this a standard weight or extra heavy fitting?
Standard weight (STD), with pressure rating per ASME B16.3. For services calling out extra heavy or 300 class malleable iron, this is not the right fitting.
7) How much does the 1-1/2 x 3/4 galvanized reducer weigh for freight and hanger loads?
0.9 lbs each. Light enough that it adds nothing meaningful to a hanger calculation, but worth counting if you are ordering a case quantity for a large galvanized run.
How fast can I get the ASC Engineered Solutions 311088603 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 311088603 come with a warranty?
Absolutely. The ASC Engineered Solutions 311088603 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 311088603?
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