What is no hub pipe and fittings?
No-Hub Pipe & Fittings. Scope: This specification covers hubless cast iron pipe and fittings used in sanitary drain, waste, and vent (DWV), sewer, and storm drainage applications. This system is intended for use in nonpressure applications.
What are hubless cast iron fittings used for?
Scope: This specification covers hubless cast iron pipe and fittings used in sanitary drain, waste, and vent (DWV), sewer, and storm drainage applications. This system is intended for use in nonpressure applications.
Can you connect ABS pipe to cast iron pipe?
There is not a significant difference when comparing the outside diameter of 1-1/2" or 2" cast iron to 1-1/2" or 2" ABS/PVC pipe. For these two smaller sizes you could use a no-hub coupling to connect ABS or PVC directly to cast iron piping without a problem.
What are no hub couplings used for?
Intended for use with DWV systems, no-hub couplings are used to join cast iron soil pipe that does not have the traditional Hub and Spigot. They are normally installed using a torque wrench. Generally, they have more clamps and provide a greater band load than standard no-hub couplings.
What is hubless cast iron pipe used for?
Scope: This specification covers hubless cast iron pipe and fittings used in sanitary drain, waste, and vent (DWV), sewer, and storm drainage applications. This system is intended for use in nonpressure applications.
Can cast iron pipe be used underground?
Because cast iron is up to 10 times stronger than thermoplastic materials, it does not need the compaction of the sidefill to support the pipe wall, so the trench can be as narrow as the installer wants.
Can you bury a Fernco?
A unshielded fernco should never be buried. Instead use a shielded coupling that is meant for direct burial in dwv.
How long will cast iron pipe last in the ground?
between 80-100 yearsCast Iron: Cast iron pipes last between 80-100 years, and are built to withstand a high amount of water pressure. However, like galvanized steel, cast iron piping has been found to be susceptible to rust over time.
Can you put no hub underground?
Underground Installations Even though all of the model codes allow hubless pipe and fittings below ground, a few local jurisdictions have local amendments which require that only hub and spigot be used underground. It is always best to check local amendments.
Which pipe is best for underground drainage?
Plastic pipesPlastic pipes are the preferred drainage pipe due to its versatility and availability. It is lightweight and easy to use for installation. There are several plastic drainage pipes to serve different purposes and they come in various diameter sizes to accommodate different amounts of water.
Can a rubber coupling be used underground?
EPDM Rubber Coupling can be used with piping made from cast iron or plastic. This coupling is rated for underground use.
Can I use a flexible coupling underground?
Flexible PVC Coupling is tested for underground use. It features a stainless-steel shield and molded-in bushing to provide extra rigidity. Connection type is mechanical.
Are Fernco couplings code?
Fernco (Rubber) fittings are not approved in wall framing unless they have a metal sheathed hose clamp assembly covering the entire fitting as part of the design, Which limit them to straight couplings or reducing couplings.
Should I replace cast iron sewer pipe with PVC?
Durable – Polyvinyl Chloride can last up to 70 years or more. Replacing cast iron pipe is expensive as they deteriorate from oxidization. Cleaner – Because PVC doesn't corrode or rust, you won't get any metal in your sewage or drinking pipes. It's a non-toxic material, safe to use for all kinds of plumbing purposes.
What year did they stop using cast iron pipes?
In 1980, cast iron pipes were no longer the pipe of choice. Builders and plumbers replaced cast iron with rigid PVC (Polyvinyl Chloride plastic), which is easier to make, can be made quickly, is harder than other options, and has greater tensile strength. It is essentially a cheaper, faster alternative to cast iron.
Is cast iron better than PVC?
Cast iron is thick and dense. Water flowing through it won't cause as much vibration as it would in a PVC pipe. These vibrations are what lead to noise, so if sound dampening is a major concern, cast iron is the better choice.
Can metal detectors detect cast iron?
Consumer-grade metal detectors can realistically detect objects between 2” and 12” (5cm to 30cm) below the surface. Cast iron pipes are 2-6x as deep, so we wouldn't be able to detect them, even in ideal soil conditions.
How do you connect PVC to cast iron pipe underground?
0:501:32Tie In to Cast-Iron Pipe With PVC - YouTubeYouTubeStart of suggested clipEnd of suggested clipSlide the gaskets onto each end of the PVC assembly and fold each gasket back on itself then insertMoreSlide the gaskets onto each end of the PVC assembly and fold each gasket back on itself then insert the assembly and unfold the gaskets onto the cast. Iron.
Can a metal detector detect cast iron pipes?
And cast iron conducts electricity much more efficiently than dirt, rock or concrete, so large, iron tubes are readily apparent to operators of metal detectors. With a metal detector, you should be able to locate cast iron pipes that are buried up to eight feet underground.
Which joint is used to connect cast iron pipes to be embedded in ground?
Bell-and-Spigot Joint This joint for underground cast-iron pipe was developed as long ago as 1785.
The History of No-Hub Couplings
No-hub couplings revolutionized cast iron drainage pipe installations from a hazardous, tedious, skilled craftsman trade, to a simpler, quicker, le...
When, Where, and Why You Might Need A No-Hub Coupling
Cast iron piping is still used in most commercial buildings like hospitals, hotels, vehicle dealerships, banks, office buildings, schools, lube sho...
How to Install A No-Hub Coupling
No-Hub couplings have an inner gasket made of a synthetic rubber compound, polychloroprene (neoprene). The inner gasket is surrounded by an outer s...
Not to Be Confused with...
No-Hub Couplings are often confused with Flexible Rubber couplings which are a much thicker walled rubber coupling with two stainless steel clamps...
What is the minimum compaction density for cast iron?
Depending on the soil type, minimum compaction density can range from 85% to 95%. Because cast iron is up to 10 times stronger than thermoplastic materials, it does not need the compaction of the sidefill to support the pipe wall, so the trench can be as narrow as the installer wants.
What is underground piping?
Proper underground piping installation is one of the most misunderstood piping applications. Underground piping is expected to support not only the earth load, but the live (traffic) load above it as well, all while limiting deflection that can cause joint leaks.
