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3/4X1/2X3/4 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:
- 0.75
- Size 2:
- 0.5
- Size 3:
- 0.75
- 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:
- 0.52 lbs
ASC Engineered Solutions 310038708 – Frequently Asked Questions
1) What size openings does the ASC 3/4 x 1/2 x 3/4 black malleable iron tee have, and which one is the branch?
It's a reducing tee with 3/4 inch on both run ends and 1/2 inch on the branch. So the straight run carries 3/4 inch pipe through and the reduced 1/2 inch outlet comes off the side, which is the usual way to pull a half inch drop or a gauge connection off a three quarter inch line without adding a bushing.
2) Are all three ends of this malleable iron tee female threaded?
Yes, all three openings are FPT (female pipe thread), so threaded male pipe ends or nipples thread straight in. Threads are cut to ASME B1.20.1, the standard NPT tapered thread spec, so it mates with any standard NPT black or galvanized nipple of the matching size.
3) Can I use a black malleable iron tee on a potable water line?
No. Black malleable iron is for gas, air, and non-potable service such as fire protection, steam, and hydronic heating. It is uncoated and will rust in potable water. For domestic water you want galvanized, brass, or copper fittings instead.
4) Is this ASC tee UL listed and FM approved for a sprinkler system?
It carries UL/FM recognition, which is what an AHJ looks for on threaded fittings in a fire sprinkler line. It's a standard weight Class 150 malleable iron fitting rated per ASME B16.3, so confirm it meets the pressure class called out on your sprinkler drawing.
5) Is this a Class 150 standard weight fitting or an extra heavy 300 pound tee?
Standard weight. The strength rating is STD, which on a malleable iron fitting built to ASME B16.3 is the Class 150 band. If your spec calls for Class 300 extra heavy, this is not the fitting for that line.
6) Will this tee meet a spec that calls for ASTM A197 malleable iron fittings?
Yes. The casting is produced to ASTM A-197, the cupola malleable iron spec, with dimensions and pressure class to ASME B16.3 and threads to ASME B1.20.1. Those three callouts are what most mechanical and fire protection specs list for threaded black iron fittings, so it can be submitted as-is.
7) Does a reducing tee like this save me from stocking a bushing?
That's the point of it. Because the 1/2 inch branch is cast into the fitting, you thread a 1/2 inch nipple straight into the side outlet with no reducing bushing in the joint. One less connection to dope and one less leak path, and it keeps the branch takeoff compact where headroom is tight.
8) How much does one 3/4 x 1/2 x 3/4 black iron tee weigh for a takeoff?
0.52 lbs each. Useful if you're pricing freight or figuring hanger loads on a run with a lot of branch takeoffs. The manufacturer part number is 310038708 if you're matching it to a submittal or a reorder.
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ASC Engineered Solutions 310038708 come with a warranty?
Absolutely. The ASC Engineered Solutions 310038708 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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