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11/4X11/4X3/4 XH 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:
- 1.25
- Size 2:
- 1.25
- Size 3:
- 0.75
- Strength:
- XH
- 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:
- 1.9 lbs
ASC Engineered Solutions 310523006 – Frequently Asked Questions
1) What size openings does the ASC Engineered Solutions 310523006 black malleable iron tee have?
It's a reducing tee: two 1-1/4 inch openings on the run and a 3/4 inch branch. All three ends are female pipe thread (FPT), so it takes male-threaded pipe nipples on every port. Use it where you need to pull a 3/4 inch branch off a 1-1/4 inch line without adding a bushing.
2) Will this tee thread onto standard NPT pipe?
Yes. The threads are cut to ASME B1.20.1, which is the standard NPT taper thread spec, so it mates with any standard threaded black or galvanized steel pipe and nipples of the matching size. Dimensions follow ASME B16.3, so the center-to-end lay length matches other standard malleable fittings if you're swapping one out.
3) What does XH mean on this malleable iron tee, and is it different from a standard tee?
XH is extra heavy, the Class 300 malleable iron pattern. It uses heavier wall sections and carries a higher pressure rating under ASME B16.3 than the standard Class 150 fitting of the same size. Physically it's bulkier, so if you're working in tight framing or replacing a standard-pattern fitting, confirm you have the room. The casting is malleable iron to ASTM A-197 with a black finish.
4) Is this ASC tee acceptable for a fire sprinkler line?
It carries UL/FM approval, so it is acceptable for use on fire protection piping where an approved fitting is required. It is an extra-heavy black malleable iron fitting to ASME B16.3 with NPT threads, which is the usual construction for threaded sprinkler branch work. Check the specific approval listing against your system's working pressure before you sign off on the submittal.
5) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron is for non-potable service: gas, fire protection, compressed air, steam, and hydronic heating lines. It has no protective coating, so water in contact with it will rust the casting. For potable water you want galvanized, brass, or copper. The black finish here is the mill finish on the iron, not a corrosion barrier.
6) Do I need a reducing bushing to land 3/4 inch pipe on this 1-1/4 inch tee?
No bushing needed. The branch port is already 3/4 inch FPT, so a 3/4 inch male nipple threads straight in. That's the point of a reducing tee: one fitting instead of a full-size tee plus a 1-1/4 x 3/4 bushing, which saves a joint and some length on the branch.
7) What part number do I order for the ASC 1-1/4 x 1-1/4 x 3/4 extra heavy black tee?
The manufacturer part number is 310523006 from ASC Engineered Solutions. That number covers the extra-heavy black malleable iron reducing tee with 1-1/4 inch run and 3/4 inch branch, all female NPT.
8) How much does the 1-1/4 x 1-1/4 x 3/4 extra heavy black tee weigh?
About 1.9 lbs per fitting. Worth knowing if you're pricing freight on a bulk order or calculating hanger spacing on a run with several extra-heavy fittings in it, since the XH pattern is noticeably heavier than standard weight.
How fast can I get the ASC Engineered Solutions 310523006 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 310523006 come with a warranty?
Absolutely. The ASC Engineered Solutions 310523006 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 310523006?
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