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3/8X3/8X1/2 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:
- 0.375
- Size 2:
- 0.375
- 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:
- 0.27 lbs
ASC Engineered Solutions 310038005 – Frequently Asked Questions
1) On the ASC 3/8 x 3/8 x 1/2 black malleable iron tee, which opening is the 1/2 inch?
It's a reducing tee with two 3/8 inch ends and one 1/2 inch end. The run ends are both 3/8 inch and the third connection is 1/2 inch, so a 1/2 inch pipe ties into a 3/8 inch line at that branch. All three openings are female pipe thread, so every leg takes a male-threaded pipe nipple or fitting.
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 ordinary threaded black or galvanized steel pipe and nipples. Pipe dope or PTFE tape on the male threads as usual.
3) Can a black malleable iron tee be used on a potable water line?
No. Black malleable iron fittings are for gas, air, and non-potable service. The black finish has no corrosion protection against water, so for domestic water you want galvanized, brass, or copper instead. The usual application for a black iron reducing tee like this is natural gas or propane piping and low pressure air.
4) Is this ASC tee UL listed and FM approved for a fire sprinkler branch line?
It carries UL/FM recognition, so it can be specified where the drawing calls for listed and approved threaded fittings. It is a standard weight (STD) class fitting made to ASME B16.3, which is the governing dimensional and pressure class standard for threaded malleable iron fittings.
5) Will this reducing tee match the laying length of the black iron tee I'm replacing?
It should. The fitting is built to ASME B16.3, the dimensional standard for threaded malleable iron fittings, so center-to-end dimensions match any other B16.3 standard-weight 3/8 x 3/8 x 1/2 tee regardless of who made it. A same-size swap drops into the existing nipples without re-cutting pipe.
6) What is the difference between standard and extra heavy malleable iron fittings, and which is this?
This one is standard weight (STD), the 150 class commonly used for gas piping and general service. Extra heavy fittings have thicker walls and a higher pressure class for high pressure steam or heavier duty lines, and they are physically bulkier. If your spec just says black malleable iron fittings to ASME B16.3, standard weight is what it means.
7) What grade of iron is this ASC tee cast from?
It's malleable iron conforming to ASTM A-197, the material spec for cupola malleable iron castings used in threaded pipe fittings. That is what gives the fitting its ductility compared to a brittle gray iron casting, so it tolerates wrench torque and vibration on a threaded joint.
8) How much does a 3/8 x 3/8 x 1/2 black iron tee weigh for freight or hanger loading?
About 0.27 lbs each. Light enough that a handful of them add nothing meaningful to a pipe run, but worth counting if you're pricing freight on a full carton for a large gas rough-in.
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Does the ASC Engineered Solutions 310038005 come with a warranty?
Absolutely. The ASC Engineered Solutions 310038005 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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