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11/2X11/4X11/4 GALV 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
- Finish Specification:
- ASTM A-153
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 1.5
- Size 2:
- 1.25
- Size 3:
- 1.25
- 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:
- Galvanized
- Product Material:
- Malleable Iron
- Product Weight:
- 1.42 lbs
ASC Engineered Solutions 311046403 – Frequently Asked Questions
1) What are the outlet sizes on the ASC Engineered Solutions 1-1/2 x 1-1/4 x 1-1/4 galvanized malleable iron tee?
It's a reducing tee: the run is 1-1/2 inch on one end, and the other run end plus the branch are both 1-1/4 inch. All three openings are female pipe thread (FPT), so it takes male-threaded pipe nipples or male adapters on every port. Use it where a 1-1/2 inch line needs to step down to 1-1/4 inch and take a 1-1/4 inch branch at the same point.
2) Will this galvanized tee thread onto standard NPT pipe?
Yes. The threads are cut to ASME B1.20.1, which is the standard NPT taper thread spec, so it mates with any standard NPT male pipe or nipple in the matching size. Dope or tape the threads as usual; NPT seals on the thread, not on a gasket.
3) Is this tee approved for fire sprinkler piping?
It carries a UL/FM listing, so it can be used in fire protection piping where a listed fitting is required. It's a standard weight (STD) malleable iron fitting to ASME B16.3, galvanized, which is the usual choice for dry and pre-action sprinkler systems where corrosion is a concern.
4) Can I use this malleable iron tee on a galvanized water line outdoors or in a damp mechanical room?
That's what the coating is for. The fitting is hot dip galvanized to ASTM A-153, the standard for galvanizing on threaded hardware, which is the same finish used on galvanized steel pipe. Matching galvanized fitting to galvanized pipe also avoids mixing bare iron into the line. It is not rated for gas by anything stated here, and galvanized is generally avoided on fuel gas.
5) What is the difference between a standard and extra heavy malleable iron tee, and which is this one?
This is a standard weight (STD) fitting, class 150 in the ASME B16.3 dimensional and pressure family. Extra heavy (class 300) fittings have thicker walls and a higher pressure rating for the same nominal size, and their dimensions differ, so they are not interchangeable in a tight layout. For normal domestic water, sprinkler, and low pressure process runs, standard weight is what gets specified.
6) Will this reducing tee interchange with another brand's 1-1/2 x 1-1/4 x 1-1/4 malleable tee already in my layout?
Dimensionally, yes. Center to end and thread engagement are set by ASME B16.3 with B1.20.1 threads, so any standard weight malleable iron reducing tee of the same size configuration lays out the same and won't change your nipple lengths. Keep the finish consistent, though, and pair galvanized fittings with galvanized pipe.
7) Do I need a bushing to run 1-1/4 inch off a 1-1/2 inch line, or will this tee handle it?
No bushing needed. The reduction is built into the casting, with one 1-1/2 inch FPT port and two 1-1/4 inch FPT ports. Using the reducing tee instead of a full size tee plus bushings cuts two joints out of the assembly and keeps the branch takeoff tighter to the main.
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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 311046403 come with a warranty?
Absolutely. The ASC Engineered Solutions 311046403 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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