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11/4X3/4X11/4 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:
- 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:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 1.04 lbs
ASC Engineered Solutions 310044003 – Frequently Asked Questions
1) What are the port sizes on the ASC Engineered Solutions 310044003 black malleable iron tee?
It's a reducing tee with 1-1/4 inch run ends and a 3/4 inch branch, so the pattern is 1-1/4 x 3/4 x 1-1/4. All three openings are female pipe thread, letting you pick up a 3/4 inch branch line off a 1-1/4 inch run without adding a bushing.
2) Will this black iron tee thread onto standard NPT pipe?
Yes. The threads are cut to ASME B1.20.1, the NPT standard, so it mates with any standard threaded black or galvanized steel pipe nipple of the matching size. All three ends are female, so you thread male pipe ends into the fitting.
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 sprinkler line. It's standard weight malleable iron to ASME B16.3 for both dimensions and pressure rating.
4) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron fittings are for gas, fire protection, steam, and non-potable service. The black finish is a mill coating with no corrosion protection against water, so for potable water you want galvanized, copper, or brass instead.
5) What grade of iron is this fitting made from?
Cast to ASTM A-197, the specification for cupola malleable iron used in threaded pipe fittings. That's the material callout an engineer or plan reviewer will want to see on a submittal for gas or sprinkler piping.
6) Will a 1-1/4 x 3/4 x 1-1/4 malleable iron tee interchange with another brand's fitting of the same size?
Yes, as long as the other fitting is also a standard weight malleable iron tee built to ASME B16.3. That standard fixes center-to-end dimensions and thread engagement, so a same-size fitting from any conforming maker drops into the same takeout. Confirm the other part is standard weight and not extra heavy, since the dimensions differ.
7) Do I need to order anything else to install this tee?
The tee ships as the fitting only, model 310044003. You supply the threaded nipples or pipe ends and a thread sealant rated for your service, a gas-rated pipe dope or PTFE tape for fuel gas lines. No gaskets or bolts are involved since all three ends are threaded female connections.
8) How much does this 1-1/4 inch black iron tee weigh for freight estimating?
1.04 lbs each. Useful if you're pricing out a bulk pull of fittings for a gas or sprinkler rough-in, since malleable iron adds up fast on a large order.
How fast can I get the ASC Engineered Solutions 310044003 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 310044003 come with a warranty?
Absolutely. The ASC Engineered Solutions 310044003 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 310044003?
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installation tips, and troubleshooting. Contact Us
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