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11/4X11/4X1 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:
- 1
- 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:
- 1.18 lbs
ASC Engineered Solutions 310042403 – Frequently Asked Questions
1) What are the three outlet sizes on the ASC Engineered Solutions 310042403 black malleable iron tee?
It's a reducing tee: two 1-1/4 inch openings on the run and a 1 inch branch. All three ends are female pipe thread (FPT), so it threads onto male-threaded pipe nipples or fittings. Use it where you're running 1-1/4 inch line and need to drop or branch off at 1 inch without adding a separate bushing.
2) Is this black malleable iron tee UL Listed and FM Approved for sprinkler work?
Yes, the 310042403 tee carries UL/FM recognition, which is what a fire protection inspector looks for on threaded fittings in a sprinkler branch line. Dimensions and pressure rating both follow ASME B16.3.
3) Can I use a black malleable iron tee on a water line, or is it gas only?
Black malleable iron fittings are the standard choice for gas piping, fire sprinkler lines, compressed air, and steam or hydronic service. They are not the right pick for potable water or wet, corrosive locations, where galvanized or a non-ferrous fitting is used instead, because the black finish has no corrosion coating. This one is black finish malleable iron.
4) What is the pressure class on this 1-1/4 x 1-1/4 x 1 tee, standard or extra heavy?
Standard pattern (STD), rated per ASME B16.3. If your spec calls for the 300 class extra-heavy pattern, this is not that fitting, and the wall thickness and outside dimensions differ.
5) What grade of malleable iron is this tee made from?
The casting meets ASTM A-197, the specification for cupola malleable iron used in threaded pipe fittings. That is the material callout most mechanical specs reference for black malleable fittings, so it will satisfy a drawing calling for A197 fittings.
6) Do I need a bushing to branch down to 1 inch off a 1-1/4 inch line?
Not with this fitting. The branch outlet is already sized at 1 inch while both run ends stay 1-1/4 inch, so the reduction is built into the tee. That saves a joint compared with running a full-size 1-1/4 inch tee and threading in a reducing bushing, and one less joint is one less leak path on a gas or sprinkler line.
7) How much does one 1-1/4 x 1-1/4 x 1 black malleable tee weigh for a takeoff?
1.18 lbs each. Multiply that out for hanger and support load calculations on a run of threaded black iron.
How fast can I get the ASC Engineered Solutions 310042403 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
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 310042403 come with a warranty?
Absolutely. The ASC Engineered Solutions 310042403 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 310042403?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
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