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1/2X1/4 GALV MI 90 ELL
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- Finish Specification:
- ASTM A-153
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 0.5
- 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:
- Galvanized
- Product Material:
- Malleable Iron
- Product Weight:
- 0.2 lbs
ASC Engineered Solutions 311007603 – Frequently Asked Questions
1) Is the ASC 1/2 x 1/4 galvanized malleable iron 90 elbow threaded on both ends, and what thread does it use?
Both openings are female pipe thread (FPT), cut to ASME B1.20.1, which is standard NPT taper thread. So it screws onto male-threaded pipe nipples or male adapters on both sides, no solder or press tooling. Use pipe dope or PTFE tape on the male threads.
2) What does the 1/2 x 1/4 mean on this galvanized 90 elbow?
It is a reducing elbow: one end takes 1/2 inch pipe, the other 1/4 inch, and it turns the run 90 degrees while stepping the size down. Both ends are female threaded, so you are not running the same nominal size straight through. If you need 1/2 inch on both ends, you want a straight 1/2 inch 90 elbow instead.
3) Can I use a galvanized malleable iron elbow on a fire sprinkler line?
This ASC reducing 90 is UL/FM listed, which is the listing a sprinkler contractor needs for threaded fittings on a fire protection system. It is malleable iron to ASTM A-197, dimensioned and pressure rated to ASME B16.3 in standard (STD) class.
4) Is this elbow Class 150 or Class 300?
It is the standard (STD) class fitting, which under ASME B16.3 is the Class 150 malleable iron rating. If your spec calls for Class 300 (marked XH or extra heavy), this one will not satisfy it.
5) Will a galvanized malleable iron elbow hold up outdoors or in a damp mechanical room?
The galvanizing is hot-dip to ASTM A-153, the coating spec written for threaded hardware and fittings, so the zinc carries into the threads rather than just sitting on the body. That is what you want for exposed, buried-in-a-chase, or humid locations. For potable water, note this is a galvanized iron fitting, not brass or bronze.
6) Will this fitting interchange with another brand's 1/2 x 1/4 malleable 90?
Yes. Dimensions follow ASME B16.3 and threads follow ASME B1.20.1, so the take-out and thread engagement match any other conforming Class 150 malleable iron reducing elbow. Swapping it into an existing threaded run does not change your pipe cut lengths.
7) Can I mix a galvanized fitting like this with black iron pipe?
Mechanically yes, since the threads are NPT to ASME B1.20.1 and will make up on either. Most specs keep the system all galvanized or all black, though, because joining galvanized to black steel on a wet line puts dissimilar metals in contact. Match the system you are working on.
8) How much does the ASC 1/2 x 1/4 galvanized 90 elbow weigh?
About 0.2 lbs each. Worth knowing if you are pricing out a bulk box for a service truck or figuring hanger loading on a long branch made up of many fittings.
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Does the ASC Engineered Solutions 311007603 come with a warranty?
Absolutely. The ASC Engineered Solutions 311007603 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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