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31/2 BLK MI 90 ELL
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 3.5
- Size 2:
- 3.5
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Elbows
- Product Type:
- 90° Elbow
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 7.1 lbs
ASC Engineered Solutions 310002407 – Frequently Asked Questions
1) What size pipe does the ASC 3-1/2 inch black malleable iron 90 degree elbow thread onto?
Both openings are 3-1/2 inch female pipe thread, so it joins two runs of 3-1/2 inch threaded pipe at a right angle. The threads are cut to ASME B1.20.1 (NPT), which is what standard black steel and malleable iron nipples are threaded to, so it mates with ordinary 3-1/2 inch NPT male ends without an adapter.
2) Is this black malleable iron elbow approved for fire sprinkler piping?
It carries UL/FM approval, which is the listing fire protection contractors and AHJs look for on threaded fittings in sprinkler systems. Black finish and malleable iron construction are standard for wet-pipe sprinkler mains; for galvanized or dry-pipe work you would want the galvanized version of the same fitting instead.
3) Can I use a black malleable iron 90 elbow on a water line, or should it be galvanized?
Black malleable iron is intended for gas, air, steam, and closed-loop or sprinkler water service, not for open potable water, where the uncoated iron will rust and discolor. This fitting is black finish. Use galvanized malleable iron or a copper/CPVC transition for domestic water.
4) Is this a standard or extra heavy pattern elbow?
Standard (STD) pattern, dimensioned and pressure rated to ASME B16.3. If your drawing calls for a 300 lb extra heavy malleable iron pattern, this is not the fitting; Class 300 fittings have heavier bodies and different face-to-end dimensions.
5) What material spec does this fitting meet for a submittal package?
The casting is to ASTM A-197 malleable iron, with dimensions and pressure rating to ASME B16.3 and threads to ASME B1.20.1. Those three lines plus the UL/FM approval are typically all a mechanical submittal needs for a threaded black iron 90.
6) What is the exact part number to order for the ASC 3-1/2 inch black 90 elbow?
Order ASC Engineered Solutions part 310002407. It is a single configuration, 3-1/2 x 3-1/2 inch FPT, black malleable iron, standard pattern, so there is no finish or size option to specify.
7) Does this elbow come with thread sealant or a nipple?
No. It is the fitting only, two 3-1/2 inch female threaded openings. You supply the nipples or threaded pipe ends and the pipe joint compound or PTFE tape rated for the service, gas or sprinkler as applicable.
How fast can I get the ASC Engineered Solutions 310002407 delivered?
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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 310002407 come with a warranty?
Absolutely. The ASC Engineered Solutions 310002407 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 310002407?
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