What Is the Purpose of Pipe Sleeves? (Explained)

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Pipe sleeves serve several purposes. For instance, they act as insulators, they can help to lengthen pipes and sleeve two pieces of unswedged lines together. They can also help during the installations which entail central heating.

What Are Piping Sleeves?

Piping sleeves are shielding rings that are used to ensure a pipe hole is open. They can also act as cover to establish a boundary between pipes and the surroundings or you can still use them to fill spaces between pipes. The sleeves are employed when creating a pipe system or building.

Close to all non-household pipe systems have some kind of sleeve. Moreover, a variety of households also do as well. They comprise sheet metals.

This is used when renovating or constructing a building. These are rings that are placed in forms for the concrete walls. When making the wall, the form develops a hole that is wide enough to place in a pipe.

It is also extra-large than the tube which passes through it and establishes a gap. On the other hand, there is also a sleeve used during and after you finish a building construction.

This can help you fill the voids where the pipes get through the walls and give rise to a separation between two sides in which air can’t pass.

They normally comprise several materials like firestop material, sheet metal, and polyvinyl chloride. Moreover, when a pipe runs to a sewer, it is blanketed with an external sleeve. And there are two major reasons for using these pipe sleeves.

That is for the protection from fire or odor. When a pipe sleeve is around the water pipe, the pipe can sometimes go into the sewer. When you place an airtight seal around an opening in the floor next to the pipes, the odor from the sewer cannot come back around it.

Fire stops function on a similar notion except they halt fire than the smell. And as hot air from fire tries to move up and then out, it naturally pulls the fire via the gaps around pipes. Hence spreading fire fast.

The last type of sleeve is always put on when constructing, though its goal is for later on. The sleeves do protect the lines from the environment and the reverse is true. The most well-known varieties are insulating and protective which prevents damages that may arise from accidental effects in high traffic zones.

Some tubes carry very cold or hot materials. In some instances, the materials must remain at the current temperature for the insulating sleeve to keep the temperature in the pipe. Besides, those same materials can impact the surrounding temperature or result in burns if you touch them and the sleeves also protect from this.

What Is the Purpose of Pipe Sleeves?

Pipe sleeves are mainly used as insulators. They are the neatest, quickest and simplest way to lengthen pipe lengths. The sleeves are used to sleeve the two pieces of unswedged tubes together.

They are also used in installations that involve central heating. Moreover, they are suitable for pipes that carry different types of chemicals, oil, gas, liquid, and many others. Pipe sleeves do meet all the building regulations which relate to fire-rated walls.

They give fire protection for plasterboard, block, and brick walls. And also act as protective sleeves in form of pressure reducing arch. They also aid in the pipework to deter corrosion.

Consultants and architects can ensure every pipe is well sleeved in a cost-effective way. The sleeves normally find a wide application in the piping industry. While passing through bund walls in tank farm locale if a tube isn’t needed to be anchored, you can route it through the pipe sleeves.

However, for buried tubes, while crossing culverts, bridges, roads, or rails, the original main tube can be routed via the sleeves. This helps to protect the main pipe from the heavyweights from trains and vehicles.

Where Are Pipe Sleeves Required?

Pipe sleeves are mainly required on concrete floors. At times, it is used to establish an opening to help penetrate an item. In some instances, they may go beyond the floor’s top surface, hence preventing or deflecting the passage of water.

Besides, they can be either plastic or metal. Wall penetration sleeves give a sealing surface that’s corrosion-resistant. This is for any concrete barrier, foundation, walls, or pipes penetrating walls. The sleeves are offered in galvanized steel and PVC.

They include a second water stop to give protection from moisture that penetrates the wall and also stability. You can get the sleeves as an independent product. Moreover, they can affect how you apply for stopping systems.

The UL system normally gives the exact requirements of the pipe sleeves. It comprises of whether the sleeve is required or optional, the distance that’s above the floor which the pipe sleeve can project. There is also the maximum diameter, thickness, and material composition.

When you read a ul system, the sleeve will normally be illustrated immediately while following the floor assembly construction. Plumbing sleeves are used in both residential and industrial buildings. You can also use them to temporarily repair a pipe to avoid expensive shutdowns.

And by properly choosing the thickness of the sleeve pipe, you can weld them directly on the main pipe. This will serve the objective of the main tubes. You can use the sleeves for the temporary repair of the pipeline leaks.

Besides, the full encirclement sleeves can be utilized in weaker areas of the pipes. This provides support to the parent pipe. They are also employed widely during the hot tapping undertakings where the branch connection is carried out for the operating lines.

PVC sleeves are common for wiring and cable solutions, mainly for building applications. In some instances, spacers are given to aid the pipeline in the sleeve. This kind of arrangement with equidistant spacer support is more common for the buried amalgamated piping systems.

The one which runs through the rail or road crossings.

What Are the Types of Sleeves

Flush Sleeves

With this, its top and the bottom are even with concrete surfaces. And whenever a manufacturer tests the pipe sleeve as flush, it is noted as optional within the given system. It is commonly known that sleeves are more important than the unsleeved opening.

This is because of the heat conducted via plastic or metal sleeves that can melt when exposed to high flame and heat.

Non-metallic Sleeves

There are ul systems that feature plastic pipes utilized as sleeves. However, some may emphasize the use of the thin wall-shaped plastic sleeves which are adopted as concrete forms.

For these types of sleeves, the ul system gives the wall thickness, type of pipe, and diameter.

And as for thin wall forms, it will define the plastic composition and other elements like if the pipe sleeve is tapered. In case you use a pointed sleeve, it can have extra noticeable annular space. This can influence the firestop system operation.

And this it is vital to confirm if the system allows you to use that kind of sleeve. It’s a popular myth to anticipate that a plastic pipe sleeve can melt through your floor. Experiments reveal how these sleeves can be utilized in the concrete floors.

Sheet Metal Sleeves

These are lighter gauge steel that’s offered with features to ingrain within the concrete you are using. Tests have also indicated these sleeves perform better than steel pipe sleeves. Though the system needs to note the sheet metal in question as a choice.


Pipe sleeves are very important as they have got several helpful uses like insulation among others. They also come in different types and you can choose to work with one that best suits you. So, if you have a concrete floor, you can consider installing them.