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2X11/4X11/2 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:
- 2
- Size 2:
- 1.25
- Size 3:
- 1.5
- 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:
- 1.85 lbs
ASC Engineered Solutions 310050802 – Frequently Asked Questions
1) Which port is which size on the 2 x 1-1/4 x 1-1/2 black malleable iron tee?
The run and branch are three different sizes: 2 inch, 1-1/4 inch, and 1-1/2 inch, all female pipe thread (FPT). That makes it a reducing tee, so orient it correctly when you dry-fit. All three openings take male NPT pipe ends cut to ASME B1.20.1 threads.
2) Can I use this black malleable iron tee on a fire sprinkler line?
It carries UL/FM approval, so it is acceptable for fire protection piping where a UL Listed or FM Approved fitting is required. Threads follow ASME B1.20.1 NPT and the fitting is built to ASME B16.3 for dimensions and pressure rating, which is the standard threaded malleable iron fitting spec sprinkler contractors work to.
3) Is a black malleable iron tee OK for a water line, or do I need galvanized?
Black fittings are for non-potable, dry or closed systems: gas piping, fire sprinkler, steam, and black-iron hydronic. The black finish is a mill coating, not corrosion protection, so for potable water or wet exposed service use a galvanized malleable iron tee in the same 2 x 1-1/4 x 1-1/2 configuration instead.
4) What is the class or pressure rating of this ASC malleable iron tee?
It is a standard (STD) strength fitting, which in threaded malleable iron is the Class 150 line, rated and dimensioned per ASME B16.3. If your drawing calls for Class 300 / extra heavy, this is not the fitting; you need the XH version.
5) What material grade is this tee made from?
Malleable iron produced to ASTM A-197, the standard grade for cupola malleable iron threaded fittings. That is the material callout most mechanical specs reference for black iron gas and sprinkler fittings.
6) Do I need a bushing to land 1-1/4 and 1-1/2 pipe off a 2 inch run?
No. The reduction is built into the fitting: one 2 inch opening, one 1-1/4 inch, one 1-1/2 inch, all threaded female. Using this instead of a full-size tee with two bushings cuts two joints and two leak paths out of the assembly. Just pipe dope or tape the male NPT ends going in.
7) How much does the 2 x 1-1/4 x 1-1/2 black tee weigh?
1.85 lbs each. Worth knowing when you are calculating hanger spacing and support loads on a run with several reducing tees in it.
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Can I return it if it doesn’t work for me?
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ASC Engineered Solutions 310050802 come with a warranty?
Absolutely. The ASC Engineered Solutions 310050802 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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