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1X1X1/2 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:
- 1
- Size 2:
- 1
- Size 3:
- 0.5
- 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:
- 0.7 lbs
ASC Engineered Solutions 310040001 – Frequently Asked Questions
1) What size pipe does the ASC 1 x 1 x 1/2 black malleable iron tee take on each opening?
Two of the three openings are 1 inch and the branch is 1/2 inch. All three are female pipe thread (FPT), so it runs 1 inch pipe straight through and reduces the outlet to 1/2 inch for a drop, a gauge, a drain, or a smaller branch line.
2) Will this tee thread onto standard NPT black pipe I already have?
Yes. The threads are made to ASME B1.20.1, which is the standard NPT taper thread spec used on black and galvanized steel pipe and on ordinary pipe nipples, so it mates with any correctly cut NPT male end. All three ports are female.
3) Is this black malleable iron tee UL Listed and FM Approved for a sprinkler line?
It carries UL/FM recognition, which is what an AHJ looks for on fire protection piping. It is standard weight malleable iron built to ASME B16.3, the dimensional and pressure rating standard for threaded malleable iron fittings. Confirm the working pressure your sprinkler design calls for against the B16.3 standard-class rating before you commit it to the system.
4) Is this tee rated for natural gas or propane piping?
Black malleable iron threaded fittings to ASME B16.3 with NPT threads are the standard fitting for black iron gas piping, and this is a standard weight fitting in that pattern. Use an approved gas-rated thread sealant on the male threads and verify the size and pressure against your local fuel gas code.
5) What is the difference between a standard and an extra heavy malleable iron tee?
This one is standard weight (STD), which is class 150 in the ASME B16.3 pattern and covers the large majority of gas, air, and fire protection work. Extra heavy (class 300) fittings have thicker walls and a higher pressure rating and are specified when the design pressure exceeds what class 150 allows. If your drawing calls out class 300, a standard weight tee is not a substitute.
6) Do I need a bushing to get a 1/2 inch branch off my 1 inch line, or does this tee do it?
No bushing needed. This is a reducing tee with the 1/2 inch reduction built into the branch, so you thread your 1/2 inch nipple straight in. Using a full 1 x 1 x 1 tee plus a 1 x 1/2 hex bushing adds a joint, adds length to the takeoff, and is what this fitting exists to avoid.
7) What material is this tee and does it meet a casting spec?
Cast malleable iron produced to ASTM A-197, the specification for cupola malleable iron castings used in threaded pipe fittings. That is the material callout a spec-driven job or a submittal package looks for, alongside the ASME B16.3 dimensional standard.
8) What part number do I order for the ASC 1 x 1 x 1/2 black tee?
The manufacturer part number is 310040001 from ASC Engineered Solutions. Quote that number when you are matching fittings already installed on a job so you get the same black malleable iron standard weight pattern.
How fast can I get the ASC Engineered Solutions 310040001 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 310040001 come with a warranty?
Absolutely. The ASC Engineered Solutions 310040001 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 310040001?
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