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11/2X11/4X11/4 BLK MI TEE
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- End Conn Size 3:
- FPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 1.5
- Size 2:
- 1.25
- Size 3:
- 1.25
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Tees
- Product Type:
- Tee
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 1.52 lbs
ASC Engineered Solutions 310046404 – Frequently Asked Questions
1) What are the three port sizes on the ASC Engineered Solutions black malleable iron reducing tee, model 310046404?
It's a 1-1/2 x 1-1/4 x 1-1/4 inch reducing tee. The run is 1-1/2 inch on one end and 1-1/4 inch on the other, with a 1-1/4 inch branch. All three openings are female pipe thread (FPT), so it threads onto male-threaded pipe nipples or externally threaded pipe ends.
2) Will this black malleable iron tee thread onto standard NPT pipe?
Yes. The threads on the 1-1/2 x 1-1/4 x 1-1/4 tee are cut to ASME B1.20.1, which is the NPT standard, so it mates with any standard NPT-threaded steel or iron pipe in those sizes. Use pipe dope or PTFE tape on the male threads to seal.
3) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron fittings like this 1-1/2 x 1-1/4 x 1-1/4 tee are for gas, air, steam, oil, and closed-loop hydronic service. The black finish has no corrosion protection against fresh water, so for potable water you want galvanized or a copper/PEX system instead. Black iron is the standard choice for natural gas and propane piping.
4) Is this ASC tee UL listed and FM approved for a fire sprinkler system?
The 1-1/2 x 1-1/4 x 1-1/4 black malleable iron tee carries UL/FM recognition, so it's acceptable where a sprinkler contractor or AHJ requires listed and approved threaded fittings. It's a standard (STD) pressure class fitting rated per ASME B16.3.
5) Will this reducing tee be dimensionally interchangeable with another brand's malleable iron tee of the same size?
Yes. Face-to-center and face-to-end dimensions are built to ASME B16.3, the same standard other malleable iron fitting makers build to, so a 1-1/2 x 1-1/4 x 1-1/4 Class 150 black tee from another manufacturer takes up the same space in the run. That matters when you're replacing a fitting mid-run and can't move the pipe.
6) What material spec does this ASC black tee meet for a submittal?
The casting conforms to ASTM A-197, the standard for cupola malleable iron, with dimensions and pressure rating to ASME B16.3 and threads to ASME B1.20.1. Those three lines are usually what a mechanical submittal or MRO spec sheet is asking for.
7) Do I need bushings to connect 1-1/4 inch pipe to a 1-1/2 inch line with this fitting?
No bushings needed. This is a reducing tee, so the size change is built in: 1-1/2 inch on one run end, 1-1/4 inch on the other run end, and 1-1/4 inch on the branch. All three are FPT, so you thread pipe or nipples straight in. Using a straight 1-1/2 inch tee plus bushings would add two more leak paths and more restriction.
8) How much does a 1-1/2 x 1-1/4 x 1-1/4 black malleable iron tee weigh?
1.52 lbs each. Useful when you're figuring hanger spacing and support loads on a threaded black iron run, or estimating freight on a bulk fitting order.
How fast can I get the ASC Engineered Solutions 310046404 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 310046404 come with a warranty?
Absolutely. The ASC Engineered Solutions 310046404 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 310046404?
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