You may also like
3 BLK MI COUPLING
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:
- 3
- Size 2:
- 3
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Couplings
- Product Type:
- Coupling
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 3.3 lbs
ASC Engineered Solutions 310081609 – Frequently Asked Questions
1) Will a 3 inch black malleable iron coupling thread onto standard black steel pipe?
Yes. Both ends are 3 inch female pipe thread (FPT) cut to ASME B1.20.1, which is the standard NPT tapered thread used on black and galvanized steel pipe. Screw it onto 3 inch threaded pipe with pipe dope or PTFE tape and it seats normally.
2) Is this 3 inch malleable iron coupling UL listed and FM approved for fire sprinkler pipe?
It carries UL/FM recognition, so it can be used on threaded fire protection piping where a UL Listed, FM Approved fitting is called for. It is standard pattern malleable iron to ASME B16.3 with ASME B1.20.1 threads, which is the usual specification on threaded sprinkler mains and branch lines.
3) Can I use a black malleable iron coupling on a potable water line?
No. Black malleable iron is for non-potable service, typically natural gas, air, and black steel fire protection or process piping. The finish here is black, uncoated malleable iron, which corrodes in wet potable service. For potable water use galvanized malleable iron, copper, or CPVC instead.
4) What is the difference between a coupling and a union for joining two pieces of 3 inch pipe?
This part is a coupling, meaning one straight female by female body. Both pipes thread into it, so one of them has to be able to rotate. A union does the same joint but has a three piece nut and seat so you can break it apart later without turning either pipe. On a fixed run between two anchored points, use a union; on new work where you can spin the pipe, the coupling is the simpler joint.
5) Is this coupling a reducer or the same size on both ends?
Same size straight coupling, 3 inch on both ends. It joins 3 inch to 3 inch only. To step down from 3 inch to a smaller pipe you need a reducing coupling or a bushing.
6) What is the ASC Engineered Solutions part number for the 3 inch black malleable iron coupling?
Order it as ASC Engineered Solutions model 310081609, a 3 inch black malleable iron standard pattern coupling with FPT threads on both ends.
How fast can I get the ASC Engineered Solutions 310081609 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 310081609 come with a warranty?
Absolutely. The ASC Engineered Solutions 310081609 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 310081609?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the ASC Engineered Solutions 310081609 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.