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11/4X3/4X3/4 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:
- 1.25
- Size 2:
- 0.75
- Size 3:
- 0.75
- 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:
- 0.86 lbs
ASC Engineered Solutions 310044409 – Frequently Asked Questions
1) What are the three port sizes on the ASC 310044409 black malleable iron tee?
It's a reducing tee: the run is 1-1/4 inch and the two remaining openings are 3/4 inch each, so it branches a 1-1/4 inch line down to 3/4 inch. All three ports are female pipe thread (FPT).
2) Will this black iron tee thread onto standard black pipe nipples?
Yes. The threads are cut to ASME B1.20.1, which is standard NPT, so it mates with any NPT-threaded black steel pipe or nipple of the matching size. All three openings are female, so you thread male pipe ends into the fitting.
3) Is this tee UL Listed and FM Approved for fire sprinkler work?
Yes, the fitting carries UL/FM recognition, so it can be used where a listed fitting is required. It's a standard-pattern black malleable iron tee, the usual choice for wet sprinkler branch lines and black iron gas or air piping.
4) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron is for gas, air, fire protection and similar non-potable service. The black finish is a mill/oil coating with no corrosion protection against water. For potable water in threaded iron pipe, use galvanized fittings or switch to copper or PEX.
5) Which opening is the 1-1/4 inch on this reducing tee, the run or the branch?
The 1-1/4 inch port is one end of the run. The other run end and the branch outlet are both 3/4 inch, so the line reduces through the fitting rather than passing straight through at full size. If you need 1-1/4 inch to carry through the run and only drop at the branch, you want a 1-1/4 x 1-1/4 x 3/4 tee instead.
6) Is this a Class 150 standard tee or an extra-heavy Class 300 fitting?
Standard weight. The strength rating is STD, and both the dimensions and pressure rating follow ASME B16.3, which is the malleable iron threaded fittings standard. If your spec calls for extra-heavy Class 300, you need a different fitting.
7) What material spec does this ASC malleable iron tee meet?
The casting is ASTM A-197 malleable iron, with dimensions and pressure rating to ASME B16.3 and NPT threads to ASME B1.20.1. That's the combination most mechanical and fire protection submittals ask for on black iron threaded fittings.
8) How much does this 1-1/4 x 3/4 x 3/4 black iron tee weigh?
About 0.86 lbs each. Useful if you're estimating hanger spacing or pricing a freight pallet of fittings for a job.
How fast can I get the ASC Engineered Solutions 310044409 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 310044409 come with a warranty?
Absolutely. The ASC Engineered Solutions 310044409 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 310044409?
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