You may also like
1X1/4X1 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:
- 0.25
- Size 3:
- 1
- 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:
- 0.69 lbs
ASC Engineered Solutions 310041801 – Frequently Asked Questions
1) What do the three sizes on a 1 x 1/4 x 1 malleable iron tee mean?
It's a reducing tee: both run ends are 1 inch and the branch outlet is 1/4 inch. All three openings are female pipe thread (FPT), so the run threads onto 1 inch NPT pipe or nipples and the 1/4 inch branch takes a small takeoff, typically a gauge, sensor, drain or air line.
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 NPT taper thread standard, so it mates with any standard 1 inch NPT pipe or nipple on the run and 1/4 inch NPT on the branch. Use pipe dope or PTFE tape as your spec requires.
3) Is a black malleable iron tee OK for potable water?
No. Black malleable iron fittings are for gas, air, steam, and closed-loop or fire protection service, not potable water, where the uncoated iron corrodes. For water supply lines, use galvanized, brass, or copper. The black finish here is the standard uncoated mill finish.
4) Is this tee UL Listed and FM Approved for fire sprinkler work?
Yes, the fitting carries UL/FM recognition, so it can be used on fire protection piping where a listed fitting is required. It is a standard weight (STD) malleable iron fitting rated to ASME B16.3 for pressure.
5) Does this fitting meet ASME B16.3 for a spec job?
It does. Dimensions and pressure rating both follow ASME B16.3, the standard for malleable iron threaded fittings, and the casting material conforms to ASTM A-197. Class is standard weight, which is the Class 150 line in B16.3. That combination is what most mechanical specs call out for threaded black iron.
6) Can I use this reducing tee instead of a full-size tee with a bushing?
Yes, and it's the cleaner way to do it. A 1 x 1/4 x 1 reducing tee gives you the 1/4 inch branch in one casting instead of a 1 inch tee plus a 1 x 1/4 bushing, which means one less joint to seal and less stacked length on the branch. Both run ends stay 1 inch FPT.
7) Can I use this tee on a gas line?
Black malleable iron threaded fittings to ASME B16.3 with NPT threads are the normal choice for black iron gas piping, and this is a standard weight fitting in that class. The 1/4 inch branch is a common takeoff size for a drip leg gauge or appliance connection. Follow your local fuel gas code for the joint compound and for whether threaded iron is permitted in that location.
8) What is the ASC part number and weight for this 1 x 1/4 x 1 black tee?
The manufacturer part number is 310041801 and the fitting weighs 0.69 lbs each, useful if you're figuring hanger loads or freight on a bulk order.
How fast can I get the ASC Engineered Solutions 310041801 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 310041801 come with a warranty?
Absolutely. The ASC Engineered Solutions 310041801 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 310041801?
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 310041801 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.