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11/4X3/4X11/4 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:
- 1.25
- Size 2:
- 0.75
- 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:
- 1.1 lbs
ASC Engineered Solutions 311044002 – Frequently Asked Questions
1) What size openings does the ASC Engineered Solutions 311044002 galvanized malleable iron tee have?
It's a reducing tee with 1-1/4 inch run ends and a 3/4 inch branch. All three openings are female pipe thread (FPT), so it takes male-threaded pipe nipples or fittings on every port. Use it where you're running 1-1/4 inch line and need to pull a 3/4 inch branch off it.
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 threaded steel or galvanized pipe nipple of the matching size. Dope or tape the male threads as usual; NPT seals on the thread, not on a gasket.
3) Is this tee UL listed and FM approved for fire sprinkler work?
It carries UL/FM recognition, which is what an inspector looks for on threaded fittings in a wet or dry sprinkler line. It's a standard-weight (STD) malleable iron fitting dimensioned and pressure rated to ASME B16.3.
4) Galvanized or black malleable iron tee, which should I use?
This one is hot dip galvanized to ASTM A-153 over ASTM A-197 malleable iron. Galvanized is what you want on water lines, wet sprinkler systems, and damp or exterior locations where a black fitting would rust at the threads. Black malleable is the usual choice for gas and dry service. Don't mix a galvanized fitting into a black iron gas run if the job spec calls out black.
5) Will this reducing tee interchange with another brand's 1-1/4 x 3/4 x 1-1/4 malleable tee?
Yes, as long as the other fitting is also built to ASME B16.3. That standard fixes the center-to-end dimensions for threaded malleable iron fittings, so a B16.3 tee of the same size drops into the same takeout. Confirm the replacement is the same standard weight class and galvanized if the line is galvanized.
6) How much does this 1-1/4 x 3/4 x 1-1/4 tee weigh for a materials takeoff?
1.1 lbs each. Worth counting when you're hanging a long threaded run, since a bank of reducing tees adds up fast on the support spacing.
7) Can I use this tee on a compressed air or process line, or is it water only?
It's a standard weight threaded malleable iron fitting rated per ASME B16.3, which is the governing spec for its working pressure by size and temperature. Galvanizing to ASTM A-153 makes it suited to water and wet service. Check the B16.3 rating for your size against the line's design pressure before you commit it to a process or air system.
8) What is the exact part number to order this ASC galvanized reducing tee?
Manufacturer part number 311044002, from ASC Engineered Solutions. That number covers the 1-1/4 x 3/4 x 1-1/4 galvanized malleable iron tee with FPT ends.
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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 311044002 come with a warranty?
Absolutely. The ASC Engineered Solutions 311044002 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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