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1/2X1/2X1/4 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:
- 0.5
- Size 2:
- 0.5
- Size 3:
- 0.25
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Tees
- Product Type:
- Tee
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 0.27 lbs
ASC Engineered Solutions 310037205 – Frequently Asked Questions
1) What do the three sizes mean on a 1/2 x 1/2 x 1/4 black malleable iron tee?
It's a reducing tee: the two run (straight-through) openings are 1/2 inch and the branch outlet is 1/4 inch. All three openings are female pipe thread (FPT), so pipe or nipples thread into the fitting rather than over it. The smaller branch is what you use to pick up a gauge, a sensor, a drain, or a small drop off a 1/2 inch line without adding a bushing.
2) Can I use a black malleable iron tee on a natural gas or propane line?
Black malleable iron threaded fittings are the standard choice for black iron gas piping, and this one is built to the right specs: ASTM A-197 malleable iron body, ASME B16.3 dimensions and pressure ratings, NPT threads per ASME B1.20.1. Standard (STD) pattern, not extra heavy. Use an approved gas-rated thread sealant and follow your local fuel gas code for the installation itself.
3) Is this tee UL listed and FM approved for fire sprinkler work?
Yes, the 1/2 x 1/2 x 1/4 black malleable iron tee carries UL/FM recognition, which is what an AHJ looks for on fire protection piping. The 1/4 inch branch is a common pickup point for a pressure gauge or switch on a sprinkler riser or drop.
4) Should I use a black or galvanized malleable iron tee?
Black is for dry service: fuel gas, fire sprinkler systems, compressed air, and steam or condensate lines where the interior stays coated. Galvanized is what you reach for on wet or damp service and outdoor runs where the zinc coating buys corrosion resistance. This one is the black version, ASTM A-197 malleable iron. Don't mix black fittings into a potable water line.
5) Do I need a bushing to get down to 1/4 inch off a 1/2 inch line?
No. The reduction is built into the fitting, 1/2 inch on both run ends and 1/4 inch on the branch, so you thread your 1/4 inch nipple or device straight into the outlet. That removes one joint and one potential leak path compared with a 1/2 x 1/2 x 1/2 tee plus a 1/2 to 1/4 reducing bushing, and it keeps the branch closer to the pipe.
6) Is this a standard or extra heavy pattern tee?
Standard pattern (STD, also called 150 class in malleable iron). Pressure ratings follow ASME B16.3. If your spec or drawing calls for extra heavy (300 class) malleable iron, this is not the right fitting and you'll need the XH pattern instead.
7) What is the part number and shipping weight on this ASC reducing tee?
The manufacturer part number is 310037205, and it weighs 0.27 lbs each. Useful if you're pricing out a bulk pull of fittings by the carton or checking a freight estimate on a large order.
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Does the ASC Engineered Solutions 310037205 come with a warranty?
Absolutely. The ASC Engineered Solutions 310037205 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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