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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:
- 1.25
- Size 2:
- 1.25
- 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:
- 0.75 lbs
ASC Engineered Solutions 310080809 – Frequently Asked Questions
1) Is this coupling a straight 1-1/4 x 1-1/4, or a reducer?
Straight. Both ends are 1-1/4 inch, so it joins two pipes of the same size. If you need to step down from 1-1/4 to a smaller line, you want a reducing coupling or a bushing instead.
2) Can I use a black malleable iron coupling on a wet sprinkler system?
It's UL/FM recognized, which is what a fire protection inspector looks for on threaded fittings in a sprinkler line. The body is malleable iron to ASTM A-197 with dimensions and pressure rating per ASME B16.3, in standard (STD) class. Black iron is the right choice for dry gas and closed fire protection piping, not for potable water.
3) Will a black iron coupling work on a domestic water line?
No. This coupling is black malleable iron with a black finish, which is meant for gas, air, and closed-loop or fire protection piping. Black iron corrodes in potable water service. For domestic water, use galvanized, brass, or copper fittings instead.
4) Is this a standard or extra heavy malleable iron coupling?
Standard class. The strength rating is STD, with pressure ratings taken from ASME B16.3. If your drawing calls for a 300-class extra heavy fitting, this one does not meet that spec and you need the XH equivalent.
5) What ASC part number should I order for the 1-1/4 inch black coupling?
Order ASC Engineered Solutions model 310080809. That is the 1-1/4 inch black malleable iron straight coupling, FPT both ends.
6) Can I use a threaded coupling to join two pipes that are already fixed in place?
No. A straight coupling like this one has FPT on both ends, so it has to be spun onto one pipe while the other is free to turn. When both ends are captive, use a union or a grooved coupling instead.
7) How much does one 1-1/4 inch malleable iron coupling weigh for a freight estimate?
Each coupling is 0.75 lbs. Useful when you are figuring the weight on a bulk fitting order for a rough-in.
How fast can I get the ASC Engineered Solutions 310080809 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 310080809 come with a warranty?
Absolutely. The ASC Engineered Solutions 310080809 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 310080809?
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product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the ASC Engineered Solutions 310080809 from ZenSupply?
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and
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every order.
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