ASC Engineered Solutions 11/4X...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$151.43
$101.43

ASC Engineered Solutions 11/4X11/4X1 XH BLK MI TEE

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Model: 310522800
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$151.43
$101.43
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11/4X11/4X1 XH 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:
1.25
Size 2:
1.25
Size 3:
1
Strength:
XH
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:
2.1 lbs

ASC Engineered Solutions 310522800 – Frequently Asked Questions

1) What size pipe does the ASC Engineered Solutions 310522800 black malleable iron tee take on each opening?
It's a reducing tee: two 1-1/4 inch openings on the run and a 1 inch branch. All three ends are female pipe thread (FPT), so it threads onto male-threaded pipe nipples, no welding or soldering.
2) Will this black malleable 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 any standard NPT male pipe or nipple. Use pipe dope or PTFE tape on the taper as usual.
3) Is this tee UL Listed and FM Approved for fire sprinkler work?
Yes, the 310522800 tee carries UL/FM recognition, so it can be used on fire protection piping where the AHJ requires listed and approved fittings. Confirm the class and working pressure against your system design.
4) Do I need a bushing to drop from 1-1/4 inch down to 1 inch at a branch?
Not with this fitting. The tee is already reduced on the branch, 1-1/4 x 1-1/4 x 1, so you tap off a 1-1/4 inch run straight into 1 inch pipe with no bushing. That removes one joint and one potential leak point compared with a full-size tee plus a reducing bushing.
5) What material spec does this ASC malleable iron tee meet?
The casting is ASTM A-197 malleable iron, with dimensions and pressure class to ASME B16.3. That combination is what most commercial and industrial piping specs call out for threaded malleable fittings, so it will match a spec line reading "malleable iron, ASTM A197, ASME B16.3".
6) Will an extra heavy tee interchange with a standard weight tee in the same run?
Yes, dimensionally. Both are built to ASME B16.3 center-to-end dimensions with ASME B1.20.1 threads, so the XH tee drops into the same makeup length as a standard weight fitting of the same sizes. The difference is wall thickness and pressure class, not layout.
7) How much does this 1-1/4 x 1-1/4 x 1 extra heavy tee weigh?
About 2.1 lbs each. Worth knowing if you're figuring hanger spacing and support loads on a long threaded run, since extra heavy fittings add up quickly over a riser.
How fast can I get the ASC Engineered Solutions 310522800 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 310522800 come with a warranty?
Absolutely. The ASC Engineered Solutions 310522800 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 310522800?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the ASC Engineered Solutions 310522800 from ZenSupply?
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