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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:
- 4
- Size 2:
- 1.5
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Reducers
- Product Type:
- Reducer
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 4.9 lbs
ASC Engineered Solutions 310093208 – Frequently Asked Questions
1) What sizes does the ASC Engineered Solutions black malleable iron reducing coupling connect?
It reduces 4 inch down to 1-1/2 inch, with female pipe thread (FPT) on both ends. So it threads directly onto male NPT pipe ends or nipples on each side, no extra adapter needed if both runs are threaded.
2) Is this reducer UL Listed and FM Approved for a sprinkler line?
It carries UL/FM recognition, so it can be used on fire protection piping where that approval is required. It is standard weight (STD) malleable iron rated to ASME B16.3 for pressure, so confirm the system working pressure matches the B16.3 standard class rating for the size before you install.
3) Can I use a black malleable iron reducer on a water line?
Black malleable iron is intended for gas, air, steam, and fire protection service, not for potable or wet water lines where galvanized or a corrosion resistant material is normally specified. The black finish here is a mill coating, not a plating, so it will rust in wet service. For domestic water, specify a galvanized malleable iron reducer of the same 4 x 1-1/2 size instead.
4) Is this a reducing coupling or a bushing?
It is a reducing coupling: female threads on both ends, 4 inch on one side and 1-1/2 inch on the other. A bushing has male threads on the large end and screws inside a fitting. If you need to step a 4 inch fitting port down, you want a bushing; if you are joining two lengths of pipe, this is the part.
5) What standard do the dimensions of this malleable iron reducer conform to?
Dimensions follow ASME B16.3, the standard for threaded malleable iron fittings, and the casting is ASTM A-197 malleable iron. That means the face-to-face and thread engagement match any other B16.3 fitting of the same size, so it drops into a spec'd run without recalculating takeouts.
How fast can I get the ASC Engineered Solutions 310093208 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 310093208 come with a warranty?
Absolutely. The ASC Engineered Solutions 310093208 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 310093208?
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