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74753-22 1 1/4 ADAPTER CTS X MNPT-NL
Manufacturer Resources
Product Specs
- Department:
- Electrical
- Product Group:
- Plumbing
- Product Subgroup:
- Pipe Fittings
- Product Type:
- Adapter
A.Y. McDonald 5141-155 – Frequently Asked Questions
1) What does the A.Y. McDonald 5141-155 adapter connect to on each end?
It's a transition fitting: one end is CTS (copper tube size, for the tubing side) and the other is MNPT, male national pipe thread, which threads into a female iron pipe thread port. So it takes you from 1-1/4 inch CTS tubing to a 1-1/4 inch female NPT connection, not the other way around. If your threaded side is male, you need a female-thread adapter instead.
2) Is the A.Y. McDonald 5141-155 a no-lead fitting for potable water service?
Yes, the 5141-155 is the NL (no-lead) version of the 1-1/4 inch CTS x MNPT adapter, which is the trim A.Y. McDonald designates for potable water lines. That's the version water utilities and municipal inspectors expect on a domestic service.
3) Will the 5141-155 work on 1-1/4 inch PE or poly pipe instead of copper tubing?
No. The CTS end on the 5141-155 is sized for copper tube size, so it takes CTS-dimensioned tubing. Poly and PE service pipe runs on IPS dimensions in many sizes and needs an insert or compression fitting matched to that pipe, plus stiffeners. Confirm your service line is CTS before you buy this one.
4) What is the correct A.Y. McDonald part number to order for a 1-1/4 inch CTS to male NPT no-lead adapter?
Order model 5141-155. A.Y. McDonald also catalogs it under the reference 74753-22 for the 1-1/4 inch CTS x MNPT no-lead configuration. There's a single model on it, so size and end configuration are fixed, nothing else to specify.
5) Does the 5141-155 adapter come with thread sealant or a gasket?
It's supplied as the adapter alone. The MNPT end is a tapered pipe thread and needs PTFE tape or an approved pipe dope rated for potable water applied on the job. Nothing else is packed with it.
How fast can I get the A.Y. McDonald 5141-155 delivered?
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Can I return it if it doesn’t work for me?
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Does the A.Y. McDonald 5141-155 come with a warranty?
Absolutely. The A.Y. McDonald 5141-155 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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