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11/4X3/4 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:
- 1.25
- Size 2:
- 0.75
- 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:
- 0.71 lbs
ASC Engineered Solutions 310009204 – Frequently Asked Questions
1) Is the ASC Engineered Solutions 1-1/4 x 3/4 black malleable iron 90 degree elbow a reducing elbow?
Yes. It is a reducing 90, with one end at 1-1/4 inch and the other at 3/4 inch, so it turns the corner and steps the pipe size down in a single fitting. Both ends are female pipe thread, so you thread male-threaded pipe nipples or cut-and-threaded pipe into each side. No separate bushing needed.
2) Can I use a black malleable iron 90 elbow on a fire sprinkler line?
This ASC reducing 90 carries UL/FM approval, so it is acceptable on fire protection piping where UL Listed and FM Approved fittings are specified. It is standard pattern (STD class) malleable iron built to ASME B16.3 for both dimensions and pressure rating.
3) Is a black malleable iron elbow OK for water, or should I use galvanized?
Black malleable iron is the finish here, and black fittings are the normal choice for gas piping, fire sprinkler systems, steam, and compressed air, plus black iron for industrial and structural pipe builds. For potable water or wet lines where corrosion matters, galvanized is the usual call. The black finish has no corrosion coating on it.
4) Will this reducing elbow meet a spec calling for ASTM A197 malleable iron fittings?
It does. The casting is made to ASTM A-197, the standard for cupola malleable iron used in threaded pipe fittings, with dimensions and pressure class per ASME B16.3. If the drawing calls out A197 body material and B16.3 dimensions, this fitting satisfies both lines.
5) Do I need a bushing or adapter to drop from 1-1/4 inch to 3/4 inch with this elbow?
No. The reduction is built into the fitting, 1-1/4 inch FPT on the large end and 3/4 inch FPT on the small end. Using a straight 1-1/4 elbow plus a reducing bushing would add a joint and a leak path; this does it in one body. Both ends still need male NPT pipe or nipples threaded in.
6) Is this a standard weight or extra heavy malleable fitting?
Standard weight. The strength class is STD, the 150 pattern covered by ASME B16.3. If your spec calls for extra heavy (XH, 300 class) malleable fittings for higher pressure service, this one will not satisfy that line and you need the heavier pattern instead.
7) What is the ASC part number and weight for the 1-1/4 x 3/4 black 90 ell?
Order it as ASC Engineered Solutions MPN 310009204. Each fitting weighs 0.71 lbs, which is useful when you are figuring hanger spacing or freight on a bulk order of threaded fittings.
How fast can I get the ASC Engineered Solutions 310009204 delivered?
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Can I return it if it doesn’t work for me?
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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 310009204 come with a warranty?
Absolutely. The ASC Engineered Solutions 310009204 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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