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1X1/2 XH 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
- Size 2:
- 0.5
- Strength:
- XH
- 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:
- 0.87 lbs
ASC Engineered Solutions 310504808 – Frequently Asked Questions
1) Will this black iron elbow thread onto standard NPT pipe?
Yes. The threads are made to ASME B1.20.1, which is the standard NPT pipe thread spec, so it mates with ordinary NPT male pipe ends and nipples. Use pipe dope or PTFE tape on the taper threads as you would with any black iron joint.
2) What does XH mean on a malleable iron fitting, and can I use a standard class 150 elbow instead?
XH means extra heavy, the class 300 wall of malleable iron fitting rather than the lighter standard class 150. It carries a higher pressure rating at the same pipe size and is dimensioned and rated under ASME B16.3. If the drawing or the existing system calls for extra heavy, do not substitute a standard weight elbow, the pressure rating is lower. Going the other way, an XH fitting can be used where standard weight is specified as long as the laying length change is acceptable.
3) Is this elbow UL listed and FM approved for fire sprinkler work?
Yes, the fitting is carried as UL/FM, so it can be used on fire protection piping where a listed and approved malleable iron fitting is called for. It's a black finish extra heavy fitting, which is the usual choice for wet sprinkler mains and branch work rather than galvanized.
4) Can I use a black malleable iron elbow on a gas line?
Black malleable iron with NPT taper threads is the standard fitting material for natural gas and propane piping, and this one is made to ASTM A-197 malleable iron with ASME B1.20.1 threads and B16.3 dimensions. Black, not galvanized, is what gas codes generally call for. Confirm the sizing against the local mechanical or fuel gas code for your job.
5) Should I use a black fitting or a galvanized one for a wet system?
This 90 is black malleable iron. Black is used on gas, closed-loop hydronic, and wet fire sprinkler piping. For open-air, potable, or corrosive wet service where rust staining matters, a galvanized malleable iron fitting of the same ASME B16.3 pattern is the right call instead. Do not mix black fittings into a galvanized run if the spec prohibits it.
6) Do I need a bushing to go from 1 inch down to 1/2 inch if I use this elbow?
No. The reduction is built into the fitting, 1 inch on one end and 1/2 inch on the other, so you save the bushing and one joint. That matters in tight sprinkler drops and gas branch takeoffs where a separate elbow plus bushing adds length and another leak path.
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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 310504808 come with a warranty?
Absolutely. The ASC Engineered Solutions 310504808 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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