You may also like
11/4X1X1/2 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:
- 1.25
- Size 2:
- 1
- Size 3:
- 0.5
- 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:
- 0.76 lbs
ASC Engineered Solutions 310043807 – Frequently Asked Questions
1) What do the three sizes on the 1-1/4 x 1 x 1/2 black malleable iron tee actually mean?
It's a reducing tee with three different female threaded openings: 1-1/4 inch and 1 inch on the run, and 1/2 inch on the branch. All three ends are FPT (female pipe thread), so it threads onto male-threaded pipe nipples at each port. Use it where a 1-1/4 inch line steps down to 1 inch and you need a 1/2 inch takeoff at the same point.
2) Is this black iron tee UL listed and FM approved for sprinkler work?
Yes, it carries UL/FM recognition, which is what a fire protection contractor needs to use it on a wet sprinkler line. It's a standard weight fitting to ASME B16.3, made from ASTM A-197 malleable iron.
3) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron is for gas, fire sprinkler, compressed air, steam, and black-iron structural or hydronic work. The black finish is uncoated iron and it will corrode in a wet potable system. For domestic water, run copper, PEX, CPVC, or at minimum a galvanized fitting instead.
4) Do the dimensions of this tee match other brands of black iron fittings so it drops into an existing run?
Yes. The fitting is made to ASME B16.3, the dimensional standard for malleable iron threaded fittings, so face-to-center takeout matches any other B16.3 standard-weight tee in the same sizes. Threads follow ASME B1.20.1, so it makes up on existing pipe the same way the fitting you're removing did.
5) How much does this tee weigh for a materials takeoff?
0.76 lbs each. Worth knowing if you're hanging a run of black iron and sizing supports, or pricing out freight on a bulk order.
How fast can I get the ASC Engineered Solutions 310043807 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 310043807 come with a warranty?
Absolutely. The ASC Engineered Solutions 310043807 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 310043807?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the ASC Engineered Solutions 310043807 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.