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1/2 (1138) BLK MI EXT PIECE
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- MPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 0.5
- Size 2:
- 0.5
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Extensions
- Product Type:
- Extension Piece
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 0.18 lbs
ASC Engineered Solutions 310095419 – Frequently Asked Questions
1) What are the end connections on the ASC 1/2 inch 1138 black malleable iron extension piece?
One end is female pipe thread (FPT) and the other is male pipe thread (MPT), both 1/2 inch. So it threads onto a 1/2 inch male nipple or male fitting on one side and into a 1/2 inch female port on the other, adding length without a coupling plus nipple. Threads are NPT per ASME B1.20.1.
2) Is this ASC 1138 extension piece UL Listed and FM Approved for fire sprinkler work?
Yes, the 1138 extension piece carries UL/FM recognition, which is what an inspector looks for on fire protection piping. It is standard weight malleable iron built to ASME B16.3 for both dimensions and pressure rating.
3) Will the 1/2 inch 1138 extension piece thread into standard 1/2 inch black steel pipe?
Yes. Both ends are 1/2 inch NPT cut to ASME B1.20.1, which is the same thread form on standard 1/2 inch black steel pipe and on 1/2 inch malleable fittings from any manufacturer. Use pipe dope or PTFE tape rated for your service.
4) Can I use a black malleable iron extension piece on a potable water line?
No. Black malleable iron fittings like the 1138 are for black steel pipe systems, typically fire protection, gas, and similar non-potable service. For domestic water you want galvanized, copper, brass, or a listed lead-free fitting instead. The black finish here is uncoated iron and will corrode in wet potable service.
5) What is the ASC part number for the 1/2 inch black extension piece?
Order it as ASC Engineered Solutions model 310095419, the 1/2 inch figure 1138 black malleable iron extension piece. That is the number to quote for a match on a distributor or purchasing line.
How fast can I get the ASC Engineered Solutions 310095419 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
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 310095419 come with a warranty?
Absolutely. The ASC Engineered Solutions 310095419 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 310095419?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the ASC Engineered Solutions 310095419 from ZenSupply?
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and
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every order.
Our team is always ready to help you choose the right product for your project.