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3/4X1/4 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:
- 0.75
- Size 2:
- 0.25
- 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:
- 0.26 lbs
ASC Engineered Solutions 310008206 – Frequently Asked Questions
1) Is the ASC 3/4 x 1/4 black malleable iron 90 degree elbow a reducing fitting, and which end is which size?
It's a reducing 90, 3/4 inch on one end and 1/4 inch on the other, so it turns the corner and steps the line down in a single fitting. Both openings are female pipe thread (FPT), meaning male-threaded pipe or nipples thread into it on both sides. If you need the same size on both ends, this is not the part.
2) Will this black malleable iron elbow thread onto standard black pipe and nipples?
Yes. The threads are cut to ASME B1.20.1, which is standard NPT taper thread, so it mates with any standard black steel pipe, nipple, or fitting cut to the same spec. Use pipe dope or PTFE tape on the male threads as usual.
3) Can I use a black malleable iron 90 elbow on a potable water line?
No. Black malleable iron is for gas, air, and non-potable service such as fuel gas piping, compressed air, and black-pipe sprinkler or structural work. The black finish is an unprotected mill finish with no corrosion barrier, so it will rust in wet potable service. For water, use galvanized or a copper/CPVC/PEX system instead.
4) Is this fitting UL listed and FM approved for fire sprinkler work?
Yes, the ASC reducing 90 carries UL/FM recognition, so it can be specified on fire protection piping where the AHJ requires listed and approved fittings. Confirm the pressure class for your system against the class rating below.
5) What pressure class is this ASC malleable iron 90, and what spec does it meet?
It's a Standard (STD) class fitting, rated per ASME B16.3, which is the governing standard for threaded malleable iron fittings and sets both the pressure class and the laying dimensions. The casting itself is made to ASTM A-197 malleable iron. Those three callouts are what an inspector or engineer will look for on a submittal.
6) Will this reducing elbow line up with my existing fittings if I'm replacing one in a run?
It should. The center-to-end dimensions are built to ASME B16.3, the same dimensional standard every other threaded malleable iron fitting follows, so a same-size replacement drops into the same makeup length regardless of which brand came out. Match the 3/4 x 1/4 size and the take-out is the same.
7) Do I need a bushing to go from 3/4 inch down to 1/4 inch pipe at a turn?
Not with this fitting. The reducing 90 does the turn and the 3/4 to 1/4 step in one piece, which removes a joint and shortens the take-out compared with a full-size 3/4 elbow plus a 3/4 x 1/4 bushing. Fewer threaded joints means fewer leak paths on gas or air work.
8) What's the part number and weight on this ASC reducing elbow for my order?
Order it as ASC Engineered Solutions MPN 310008206. Each fitting weighs 0.26 lbs, which is useful when you're figuring hanger loads or freight on a bulk pull of them.
How fast can I get the ASC Engineered Solutions 310008206 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 310008206 come with a warranty?
Absolutely. The ASC Engineered Solutions 310008206 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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