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11/4 BLK MI CROSS
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- End Conn Size 3:
- FPT
- End Conn Size 4:
- FPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 1.25
- Size 2:
- 1.25
- Size 3:
- 1.25
- Size 4:
- 1.25
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Crosses
- Product Type:
- Cross
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 1.44 lbs
ASC Engineered Solutions 310070404 – Frequently Asked Questions
1) Are all four openings on the 1-1/4 inch black malleable iron cross the same size?
Yes, all four outlets are 1-1/4 inch, and all four are female pipe thread (FPT). It is a straight run-and-branch cross with no reducing outlets, so 1-1/4 inch threaded pipe or nipples thread into any of the four ports.
2) Is this black malleable iron cross approved for fire sprinkler piping?
It carries UL/FM approval, which is what a sprinkler contractor needs for fittings in a fire protection system. It's black malleable iron built to ASME B16.3 in standard (Class 150) strength, the usual combination for wet-pipe sprinkler mains and cross mains.
3) Can I use a black malleable iron cross on a potable water line?
No. Black malleable iron is for gas, fire protection, steam, and compressed air, not potable water, because the uncoated iron rusts in wet service and it isn't a lead-free potable-rated fitting. For domestic water you want a galvanized fitting or copper/CPVC/PEX. Black is correct where a gas fitter or sprinkler fitter specifies black pipe.
4) When would I use a cross instead of two tees on a 1-1/4 inch line?
A cross gives you two opposed branches off one fitting at a single point, which saves a nipple and holds both branches on the same centerline. That matters on sprinkler cross mains and on symmetrical manifolds. Two tees back to back offset the branches along the run and add a joint. The tradeoff: a cross has four made-up joints in one body, so you have to be able to spin all four threaded connections in place, which usually means a union somewhere in the run.
5) What grade of malleable iron is this cross made from?
It's cast to ASTM A197, the standard for cupola malleable iron used in threaded pipe fittings, with dimensions and pressure rating per ASME B16.3. That's the same material spec you'd match to on the rest of a black iron fitting package.
6) How much does the 1-1/4 inch black iron cross weigh for hanger and support planning?
1.44 lbs per fitting. Light enough that it won't change hanger spacing on its own, but worth counting on a sprinkler main where a run carries several crosses plus the water weight.
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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 310070404 come with a warranty?
Absolutely. The ASC Engineered Solutions 310070404 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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