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11/4X1X1 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
- 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:
- 1.92 lbs
ASC Engineered Solutions 310523808 – Frequently Asked Questions
1) What size reducing tee is the ASC Engineered Solutions 310523808 black malleable iron tee?
It's a reducing tee with a 1-1/4 inch run outlet and two 1 inch outlets (sizes listed as 1.25, 1 and 1). All three openings are female pipe thread (FPT), so it threads onto male-threaded pipe ends on every branch.
2) Will this black malleable iron tee thread onto standard NPT pipe?
Yes. The threads are made to ASME B1.20.1, which is the NPT taper thread standard, so it mates with standard black or galvanized threaded steel pipe and NPT nipples. Dimensions follow ASME B16.3.
3) Is this ASC tee UL listed and FM approved for fire sprinkler piping?
Yes, the 310523808 tee carries UL/FM recognition, which is what lets it be used on fire protection piping where the approval is required. It's black malleable iron, extra heavy, with all three ends female threaded.
4) What does XH mean on a malleable iron fitting, and when do I need it instead of standard?
XH is extra heavy, Class 300 malleable iron. It has thicker walls and a higher pressure rating than the standard Class 150 fitting of the same size, so it's what gets specified where working pressure or mechanical abuse is higher. On a standard low-pressure gas or water branch, a Class 150 fitting is usually what the drawing calls for. Pressure rating here follows ASME B16.3.
5) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron is used on gas, fire protection, steam, compressed air and similar service. For potable water you want brass, copper, CPVC or galvanized, not a black iron fitting, because black iron corrodes in wet potable service.
6) Do I need a bushing to take a 1-1/4 inch line down to 1 inch with this tee?
No bushing needed. The reduction is built into the fitting: one 1-1/4 inch FPT opening and two 1 inch FPT openings, so you thread 1-1/4 inch pipe into the large end and 1 inch pipe into both others. Using a full-size tee plus bushings adds two more leak paths and takes up more space in the run.
7) Do I still need thread sealant with this fitting?
Yes. The joint is a tapered NPT thread per ASME B1.20.1, which seals on thread interference, not on a gasket, so it needs pipe dope or PTFE tape rated for the service. Sealant is not supplied with the tee.
How fast can I get the ASC Engineered Solutions 310523808 delivered?
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U.S.
Need it urgently? Contact Us for expedited shipping options.
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 310523808 come with a warranty?
Absolutely. The ASC Engineered Solutions 310523808 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 310523808?
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selection,
installation tips, and troubleshooting. Contact Us
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