Rubber plumbing coupling-Flexible Pipe Connectors, Rubber Couplings

Trap Adapters are fittings used to connect the piping from the P-trap to the piping coming out from the wall or floor. These trap adapters can be used for repairs or alterations or for new installations. You should not replace a shielded no-hub coupling with a flexible rubber coupling if it is an above ground installation or repair. Flexible rubber couplings are for use underground. No-hub or shielded couplings can be used above or below ground because the shield provides extra strength to the coupling.

Rubber plumbing coupling

Rubber plumbing coupling

Rubber plumbing coupling

Rubber plumbing coupling

Sold as a single unit. Works as described, no complaints. No-Hub Rubber plumbing coupling. Note: Dimensions have been converted from Wearing tight girdles inches to usable fraction inches and are not always exact equivalents. Figured I was missing something. This puts pressure both parallel and crossways against the gasket which in turn tightens against the pipe providing couupling reliable positive seal. All listings. The workmanship is the issue, not the material. Click to Enlarge. Any license the guy claims to have is a municipal contractor license.

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Title Z-A. Service weight cast iron pipe is the standard cast iron pipe with bell and spigot connections. Go to next page. Click to add item "Fernco 3" x 2" Donut" to the compare list Compare. An Extra Heavy Duty Cast Iron pipe is also available but is very rarely used except for extreme soil conditions and in special industrial applications. Ship to Store - Free! No-Hub Coupling. These trap adapters can be used for repairs Rubber plumbing coupling alterations or for new installations. Flexible rubber couplings are for use underground. Nominal Size When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Please Rubber plumbing coupling Prices, promotions, styles and availability may vary by store and online. These couplings align the inside wall of the two pipes to maintain a continuous flowline. Toggle navigation Slip clamp tool View Cart Contact.

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  • Trap Adapters are fittings used to connect the piping from the P-trap to the piping coming out from the wall or floor.
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Received an email from a client today; I called out this rubber Fernco connector on the elbow for being subject to failure especially since the PVC is clearly cut too short. It runs from the laundry basin, through a Liberty pump and to the soil stack at the right.

The plumber who installed it said; "it is a Fernco coupling that is widely accepted by plumbing contractors and municipalities, leak proof, rot proof, chemical and UV resistant, etc.

Contact me with any additional concerns. I also received a message that he said "everyone does it this way and its legal and up to code. I didn't think that these type of connectors were "legal and up to code" and I'm kind of surprised that a plumber would defend this kind of work. Click to Enlarge. The only question I'd have is whether or not attaching it to the hub of the elbow is appropriate.

Honestly, though, if I saw that during an inspection and it wasn't leaking and it looked and felt secure, I'd just keep going without even making a note. In an old basement, you will see improvised hookups, especially matching metal to PVC. Fernco connectors are a standard way to make those transitions.

There are some Ferncos that have metal mesh outer jackets, but those are straight coupling, no reduction in size. In new construction, they are used to connect cast iron pipe, such as in condos where plastic is not allowed, fire codes.

Thank you guys. My other concern with this one was the elbow fitting being installed on the hub as Jim K mentioned and the fitting being bent to compensate for the discharge pipe being cut too short.

So other than that, it looks like the plumber was right. I had always understood it that the stainless steel Fernco fittings were the only ones that were acceptable.

Also don't forget that NYS does not license plumbers. Any license the guy claims to have is a municipal contractor license.

Tell your client to request an opinion from the municipal code inspector. He or she is the AHJ not the guy that did it wrong for 30 years. I've been searching the plumbing code and couldn't find these rubber fittings anywhere. Figured I was missing something.

Haven't contacted my client or the plumber yet. Still taking in info and formulating my response. I'm going to hold off until Monday and make sure to get Chad's opinion before I respond. However, make sure to look for the UPC code on the label, there are some imitations showing up that are not approved.

My plumber friend calls those "no-hub" connectors, for making difficult connections between old cast iron and new PVC DWV pipes. If easily accessible, I would ignore any code questions in my report. They call them hubless fittings around here and it is an awesome way to save time connecting drain pipe. In the strictest sense, the installation isn't compliant because as others have pointed out, the Fernco isn't designed to go over the hub, there is a reduction in diameter in the direction of flow, it isn't listed as a connection method,the connector is designed for gravity systems with a maximum pressure rating of around 4 psi.

Fernco's website states that many municipalities and AHJ's accept these connectors but they do not go so far as to say they're code compliant. As Jim said, there are usually bigger fish to fry, but if the issue exemplified fubar plumbing throughout, it'd make the report.

Thanks Chad. There was no venting or backflow prevention on this installation either. I was surprised that a "plumber" would take credit for it and defend it. Not great workmship, but does not look like much of a problem. I would also question and probably note the use of the connector on the hub of the elbow. The link below indicates they are approved for use on plain-end pipe.

One ASTM standard applies to underground installation. The report says above ground use is subject to approval by the AHJ. The op wrote that he called out "the rubber Fernco fitting on the elbow " and I was pointing out that the Fernco is not rubber, it is a flexible PVC elastomeric polyvinylchloride , bears the UPC stamp of approval - it is on the label, and is allowed by the aforementioned table of materials and subsequent paragraphs.

The plumber in this case is correct in the choice of materials. The workmanship is the issue, not the material. For everyone who thinks that the use of Fernco couplings here is wrong: How else would you transition from the copper pipes to the PVC pipes?

I would not call that out. How else would you connect copper to PVC? Many times in older homes there are things that are not quite perfect but are acceptable. Senior moment. Thought I was commenting on a rubber fitting not a coupling. Shit, it a good thing I'm retired. Well, if it's any consolation, I was expecting you to come up with a slick reason as to why it was actually a fitting.

Fernco is the name of a manufacturer, not a specific fitting. Fernco also manufactures the shielded couplings in your pictures as well as many other products. Yes they do,but the ones without the metal shielding under the band's are not no-hub couplings. You can post now and register later. If you have an account, sign in now to post with your account. Paste as plain text instead. Only 75 emoji are allowed. Display as a link instead. Clear editor. Upload or insert images from URL.

By Mike Lamb Started October Plumbing Forum Search In. Reply to this topic Start new topic. Prev 1 2 Next Page 1 of 2. Recommended Posts. Report post.

Posted March 4, Are they up to code? Click to Enlarge Share this post Link to post Share on other sites. They're allowed in my area. We're on the UPC and I agree with Jim, that is a non-issue. That is drains only, not water lines under pressure. Getting shot down here, lol.

Thanks for the info, I appreciate it! Posted March 5, Hi Tom, Rubber fittings are not permitted Table P The fitting also reduces the diameter as the diameter was increased at hub. I can't wait till Chad chimes in! Tom Corrigan. Thanks for the info Tom! The workmanship of the installation is another question though. Posted March 6, The photo doesn't include backflow prevention or venting- was there any?

Posted March 7, Sorry Jim and all. Once again, "oops". Thanks to all who provided opinion and information. I'll put it to good use in the future. Posted March 8, Posted December 31, Posted January 1, Join the conversation You can post now and register later. Reply to this topic Insert image from URL. Go To Topic Listing.

Price High to Low. Fernco 2" x 2" Donut. Fitting Type When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Click to add item "Fernco 2" Connector" to the compare list Compare. Fernco 3" x 3" Donut. Availability Options When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Change Store.

Rubber plumbing coupling

Rubber plumbing coupling

Rubber plumbing coupling

Rubber plumbing coupling.

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Trap Adapters are fittings used to connect the piping from the P-trap to the piping coming out from the wall or floor. These trap adapters can be used for repairs or alterations or for new installations. You should not replace a shielded no-hub coupling with a flexible rubber coupling if it is an above ground installation or repair. Flexible rubber couplings are for use underground. No-hub or shielded couplings can be used above or below ground because the shield provides extra strength to the coupling.

What is the advantage of the shield on the no-hub coupling? The shield was designed for the no-hub couplings to adjust to variations in diameters of the pipes to be joined and for added strength. When the bands are tightened the corrugations squeeze together and line up to lock against each other.

This puts pressure both parallel and crossways against the gasket which in turn tightens against the pipe providing a reliable positive seal.

The shield keeps the pipe from shifting and possibly cutting or breaking through the gasket and the gasket creates the seal and prevents the pipe from pulling out. It is a rubber like material capable of recovering its original shape after being greatly stretched.

Composed of man made chemical compounds including PVC poly vinyl chloride. Service weight cast iron pipe is the standard cast iron pipe with bell and spigot connections. It is used for gravity flow sanitary drain, waste, vent, sewer and storm drains in non-pressure installations. Service weight cast iron pipe and fittings must conform to ASTM specifications as set forth in ASTM A 74 that specifies the physical composition, dimension requirements, the quality of the finished product and testing requirements to ensure the piping conforms to this standard.

Service weight is the minimum grade of cast iron piping that can be used in residential or commercial plumbing bell and spigot applications. An Extra Heavy Duty Cast Iron pipe is also available but is very rarely used except for extreme soil conditions and in special industrial applications.

Plumbing Terms. View Cart. Toggle navigation Help View Cart Contact. Made from elastomeric PVC, they are very durable, resilient, and not affected by soil conditions. Search no more!

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Donut Shaped Compression Seals. Note: Dimensions have been converted from decimal inches to usable fraction inches and are not always exact equivalents. These couplings align the inside wall of the two pipes to maintain a continuous flowline. Order in quantities of 2, 10, 20 or more of each size for additional savings!

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Rubber plumbing coupling

Rubber plumbing coupling