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1/8 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:
- 0.125
- Size 2:
- 0.125
- Size 3:
- 0.125
- 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:
- 0.09 lbs
ASC Engineered Solutions 310029202 – Frequently Asked Questions
1) What size pipe does the 1/8 black malleable iron tee thread onto?
All three openings are 1/8 inch female pipe thread, so it joins three runs of 1/8 inch NPT pipe or male-threaded nipples. Threads are cut to ASME B1.20.1, the standard NPT taper spec, so it mates with any standard 1/8 NPT male thread regardless of who made the pipe.
2) Is this tee reducing or are all three outlets the same size?
Straight tee, no reduction. Size 1, 2 and 3 are all 0.125 inch, so the run and the branch are identical 1/8 inch FPT. If you need to step down on the branch you want a reducing tee or a bushing in the outlet.
3) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron fittings are for non-potable service: gas, air, steam, and similar dry or oil systems. The black finish has no corrosion protection against water, which is why galvanized is used on wet lines. This one is made to ASTM A-197 malleable iron with a black finish.
4) Is this tee UL Listed and FM Approved for fire sprinkler work?
Yes, it carries UL/FM recognition, which is what an inspector looks for on a fire protection system. The fitting is dimensionally to ASME B16.3 with pressure ratings per the same standard.
5) Is this a Class 150 standard fitting or extra heavy?
Standard pattern, marked STD, which on malleable iron threaded fittings is the Class 150 weight under ASME B16.3. If your drawing calls for Class 300 extra heavy, this is not the fitting for that spec.
6) Will a 1/8 inch malleable iron tee work for a gauge or instrument take-off?
That is the common use for this size. 1/8 inch black malleable tees usually land on gauge lines, air pilot lines, and small instrument drops rather than distribution piping. With FPT on all three ports you thread the run in from both sides and put the gauge or sensor on the branch with a 1/8 NPT male thread.
7) Do I need to use thread sealant on this fitting?
Yes. These are tapered NPT threads to ASME B1.20.1, and a taper thread seals on the flanks metal to metal, so pipe dope or PTFE tape rated for your media is required to get a leak-free joint. Use a sealant approved for gas if the line is fuel gas.
8) What is the ASC Engineered Solutions part number for the 1/8 black malleable tee?
The manufacturer part number is 310029202. That is the identifier to quote when matching an existing spec or reordering for stock.
How fast can I get the ASC Engineered Solutions 310029202 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 310029202 come with a warranty?
Absolutely. The ASC Engineered Solutions 310029202 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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