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11/2X11/2X1 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:
- 1.5
- Size 2:
- 1.5
- Size 3:
- 1
- 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:
- 2.6 lbs
ASC Engineered Solutions 310524400 – Frequently Asked Questions
1) What does XH mean on a malleable iron fitting, and when do I need it instead of standard?
XH is extra heavy, meaning a heavier wall and a higher pressure rating than a standard (Class 150) malleable fitting of the same size. Dimensions and pressure class both follow ASME B16.3. Spec it where the system pressure, mechanical loading, or the engineer's drawing calls for a Class 300 fitting; for ordinary low pressure black iron gas or hydronic runs, a standard weight tee is usually what's called for.
2) Is this tee approved for fire sprinkler piping?
It carries UL/FM approval, so it can be used on fire protection piping where the AHJ and the sprinkler drawings accept threaded malleable iron fittings. Verify the fitting class on the sprinkler submittal matches the extra heavy rating you're installing.
3) Can I use a black malleable iron tee on a natural gas line?
Black malleable iron with NPT threads is the standard fitting for black iron gas piping, and this one is black finish malleable iron to ASTM A-197 with B1.20.1 threads. Black fittings are for gas, air, hydronic, steam and fire protection service, not for potable water, where galvanized or non-ferrous is used instead. Use a gas-rated thread sealant.
4) Do I need anything else to install a 1 inch branch off a 1-1/2 inch line with this tee?
The tee is female threaded on all three ports, so you supply the male-threaded nipples or threaded pipe ends that land in it, plus thread sealant. Nothing is included with the fitting itself. If the branch you're picking up is smaller than 1 inch, add a reducing bushing or a reducer in the 1 inch port.
5) Is this ASC tee dimensionally interchangeable with other brands of 1-1/2 x 1-1/2 x 1 extra heavy black tee?
It's built to ASME B16.3, which fixes center-to-end dimensions and thread engagement for malleable iron threaded fittings by size and class. Any other extra heavy black malleable tee of the same 1-1/2 x 1-1/2 x 1 size made to B16.3 will lay out the same way, so it drops into the same takeout on an existing run.
6) How much does the 1-1/2 x 1-1/2 x 1 extra heavy black tee weigh?
2.6 lbs each. Worth knowing when you're estimating hanger spacing and support loading on a threaded run built out of extra heavy fittings, since they add up quickly over a long branch.
7) What is the manufacturer part number for this ASC black malleable tee?
ASC Engineered Solutions part number 310524400, the 1-1/2 x 1-1/2 x 1 extra heavy black malleable iron tee with FPT ends.
How fast can I get the ASC Engineered Solutions 310524400 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 310524400 come with a warranty?
Absolutely. The ASC Engineered Solutions 310524400 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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