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31/2 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:
- 3.5
- Size 2:
- 3.5
- Size 3:
- 3.5
- 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:
- 9 lbs
ASC Engineered Solutions 310031406 – Frequently Asked Questions
1) Is the 3-1/2 inch black malleable iron tee threaded on all three openings?
All three openings are female pipe thread (FPT), each at 3-1/2 inch, so it's a straight equal tee. Threads are cut to ASME B1.20.1 (NPT), so it mates with standard 3-1/2 inch threaded black steel pipe and nipples with pipe dope or tape.
2) Is a black malleable iron tee OK for potable water?
No. Black malleable iron is for gas, air, and fire protection or other dry and non-potable service. For potable water you want galvanized malleable iron or a copper, brass, or stainless fitting instead, since bare black iron will rust in a wet potable line.
3) What does STD strength mean on this malleable iron tee, and what pressure is it good for?
STD is the standard-weight pattern, which in malleable iron is the Class 150 body, with pressure ratings taken from ASME B16.3. Body material is ASTM A197 malleable iron. If your spec calls for extra-heavy (Class 300) malleable, this fitting is not a substitute.
4) Will a 3-1/2 inch tee interchange with another brand's malleable tee on the same run?
Yes, as long as the other fitting is also standard-pattern malleable to ASME B16.3 with NPT threads. B16.3 fixes center-to-end dimensions, so the take-out is the same brand to brand and your nipple lengths won't change when you swap in the ASC 310031406.
5) How heavy is a 3-1/2 inch black iron tee, and do I need to support it?
Roughly 9 lbs for the fitting alone. Add the weight of 3-1/2 inch threaded pipe on three sides and you'll want a hanger close to the tee rather than letting the branch hang off the threads. Two people for overhead work at this size is realistic.
6) Does this tee come with anything, or do I need to buy nipples and sealant separately?
The tee ships as a bare fitting only, part number 310031406. Nipples, unions, pipe dope or PTFE tape, and any hangers are separate. On a UL/FM fire protection job, use a thread sealant that's listed for that service.
How fast can I get the ASC Engineered Solutions 310031406 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 310031406 come with a warranty?
Absolutely. The ASC Engineered Solutions 310031406 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 310031406?
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installation tips, and troubleshooting. Contact Us
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