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11/2X3/4X3/4 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:
- 1.5
- Size 2:
- 0.75
- Size 3:
- 0.75
- 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 lbs
ASC Engineered Solutions 310048004 – Frequently Asked Questions
1) What are the three outlet sizes on the ASC 310048004 black malleable iron tee?
It's a reducing tee with a 1-1/2 inch run and two 3/4 inch openings. All three ports are female pipe thread (FPT), so it takes male-threaded pipe nipples on every side. Handy when you're branching two 3/4 inch takeoffs off a 1-1/2 inch line without stacking separate bushings.
2) Will this black iron 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. Use pipe dope or PTFE tape on the taper to seal.
3) Can I use a black malleable iron tee on a fire sprinkler line?
This one is UL/FM rated, which is what a sprinkler contractor needs for listed fire protection piping. It's standard weight (STD) malleable iron built to ASME B16.3 for both dimensions and pressure class. Black iron is for dry or non-potable service, not domestic water.
4) Is a black iron tee OK for potable water or does it need to be galvanized?
Black, not galvanized. The finish here is black malleable iron, which is used for natural gas, air, and fire protection piping, plus steam and hydronic work. For potable water you want galvanized or a copper or PEX system instead, since bare black iron will rust in wet potable service.
5) Will this reducing tee interchange with another brand's 1-1/2 x 3/4 x 3/4 malleable tee?
It should. Dimensions follow ASME B16.3, which fixes center-to-end and thread engagement for Class 150 malleable fittings, so a B16.3 tee of the same size from any manufacturer lays out the same in a run. That matters if you're patching into existing black iron and need the branch centers to land where they already are.
6) Do I need bushings to reduce from 1-1/2 to 3/4 inch with this fitting?
No. The reduction is cast into the fitting, so the 1-1/2 inch run and both 3/4 inch branches are threaded at final size. That saves you two reducing bushings per tee and keeps the assembly shorter and with fewer leak paths, which is why spec jobs usually call reducing tees instead of bushed straight tees.
7) What grade of iron is this fitting cast from?
ASTM A-197, the standard cupola malleable iron spec for pipe fittings. That is the material grade a mechanical inspector will look for on a black iron gas or sprinkler run, and it is what gives malleable iron its ductility compared with plain cast iron.
8) How heavy is a 1-1/2 x 3/4 x 3/4 black malleable tee for shipping or a hanger count?
About 1 lb each. Light enough that a handful of them won't change your support spacing, but worth counting if you're pricing out a large fitting order by weight.
How fast can I get the ASC Engineered Solutions 310048004 delivered?
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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 310048004 come with a warranty?
Absolutely. The ASC Engineered Solutions 310048004 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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