Fan pipe for toilet - dimensions and types, system connection

Not everyone knows what a toilet drain pipe is.
To people who are far from plumbing wisdom, these words mean absolutely nothing. So, what is it? If you translate the word “fun” from English, the translation is “fun.” Accordingly, this concept was not borrowed. But those who have encountered this type of pipe rolling in repair work will explain these concepts better than anyone else. Most often, such pipe products are a continuation of the drain system. Their function is to remove waste fluid. On one side it is sealed with an elastic band, which seals the connection with the toilet. And the other side is connected to the internal drain wiring connector.

IMPORTANT! All liquid is directed to this place: after the dishwasher, washing machine, from the bathroom or toilet. For obvious reasons, this liquid does not have the most attractive smell. Therefore, it is not recommended to remove the fan pipe yourself.

What is a fan pipe

To prevent the house from being filled with unpleasant odors from the sewer system, it is necessary to ensure good ventilation.
You can get rid of odors from the sewer using a toilet drain pipe. A toilet drain pipe is a pipe that, when installed, will connect the sewer system to the atmosphere. Unpleasant odors can easily come out along with human waste. Whether it will be a flexible, offset or other drainage pipe for the toilet, what size, what material it is made of, depends on the specific location of its placement and operating conditions.

You can separately mount such a structure for a shower, kitchen, or bathroom.

To construct fans, you can use rigid and flexible risers. The disadvantage of rigid analogues is that they cannot be bent at the desired angle. Flexible specimens do not have this drawback. Therefore, many give them their preference.

The drain pipe can be brought out in two ways: to the roof through the roof or through the wall.

Installation features

Installation is carried out in the following sequence:

1. They begin to collect elements at the bottom point of the contour. They are connected using a tee, one hole of which is directed upward.
2. A fan pipe element is inserted into the tee hole; the joint should be located above the attic floor.
3. The connection point is sealed with silicone sealant.
4. Every 1.5 meters the pipeline is secured to the wall with clamps.

The vent pipe, as part of the riser, is led to the roof. On a pitched roof it should protrude 0.5 m above the ridge; if the roof is in use, the distance increases to 3 m.

Fan pipe or vacuum valve

Due to a number of positive characteristics of vacuum valves, they are increasingly used in private construction. What is this device? It is a special aerator with the help of which all unpleasant odors are quickly removed from the sewer risers. If individual developers are faced with the question of which device is more profitable and efficient for them - a vent pipe or a vacuum valve, then the majority choose the second option. Vacuum valves, depending on the manufacturer, have different technical characteristics. The principle of operation of the products is the same.

Designs are preferred in 2 cases:

• the house lacks high-quality sewer ventilation;
• You cannot lead the drain pipe from the toilet to the roof.

Like all devices, the vacuum valve has a number of advantages.

It is different:

• ease of installation and maintenance. There is no need to watch his work often, since it is impeccable;
• quiet operation;
• reliability of operation.

Photo of vacuum sewer valve

During installation:

• the roof remains intact and unharmed. Its installation does not involve an outlet to the roof, as is the case with a vent pipe;
• minimal damage is caused to the appearance of the home, since the device does not extend beyond the building;
• money is saved on the purchase of materials when removing risers through the roof or wall.

Flaws:

• the device is designed to connect one toilet;
• a cost that is considered relatively high. If you count the money spent on installing a riser through the roof with the outlet of the vent riser on the roof, then a vacuum valve is a more profitable option.

Correct connection diagram
Important! In the case of installing a non-standard type of vent riser, which must be equipped with bends, corners, and transitions, there may be a mismatch in the diameters of the products in different parts of the system.

Application of plastic structures

In private homes, when installing systems for removing air and various types of odors, they mainly use plastic vent pipes. They can be round or rectangular.

Risers used as fan risers are produced in different sizes. When installing an exhaust or supply ventilation system, plastic fan pipes with a diameter of 50 to 110 mm and a length of 3-4 meters are in demand.

If the plastic fan pipe in the ceiling is cracked, it needs to be replaced. Repairing this part of the exhaust or ventilation line will not bring the desired result.

When carrying out this procedure, you should adhere to the sequence of work:

• using a hammer drill around the riser, expand the diameter of the hole (at least 2 times);
• use a grinder to cut the cracked element of the system approximately in the middle of the height so that it is convenient to remove both pieces;
• remove the cracked parts and put a new riser in their place;
• seal the hole around the installed exhaust ventilation element both from below in the ceiling and in the upper plane of the ceiling.

It must be said about the presence of flexible plastic fan pipes. To connect them to a solid part of the system, it is recommended to use rubber rings for sealing. For better fit into the socket and complete tightness, they must be coated with silicone before installation. When attaching such a section to the wall, metal clamps are used, which are characterized by increased reliability.

Important! Although silicone is an ideal substance for high-quality sealing, it should be remembered that the next time you dismantle it, you will have to put in a lot of effort to remove it.

Today, plastic risers can be purchased at any hardware store or store.

Products ANI plast

The Russian company produces high-quality and reliable sanitary fittings. The company produces not only faucet pipes for sliding and offset toilets, but also flexible corrugated products. It specializes in the production of valves for faucet pipes and other plumbing parts related to toilets, showers, bidets, bathtubs and kitchen sinks of all sizes and types. All parts for drain pipes and sewer lines can be purchased at hardware stores.

Toilet pipes from this well-known brand are used in private construction and in multi-storey buildings.

The fan pipe 110 ug 90 code w9220, 110x22.5 ani w2220 is in demand, which is used in private construction and in the construction of multi-story buildings. Products from PP ANI Plast (Russia) are popular. These parts, like the plastic pipe ani plast 110 45 degrees (110x45), 60 degrees w4220, are durable and have a long service life.

Products of PP "ANI Plast" (Russia)

The significant advantages of the company’s products with almost 20 years of experience in the drainage fittings market include:

:

• high quality;
• extraordinary plasticity;
• reliability combined with strength;
• low cost.

The company produces offset vent pipes for toilets, corrugated sliding vent pipes, as well as other elements, including 90-degree toilet pipes.

Important! All sanitary drainage fittings products comply with GOST 23289-94.

Kinds

For sewerage, you can use drain pipes made of cast iron or plastic. Cast iron is compatible exclusively with cast iron, but plastic is much more versatile, so plastic is recommended when repairing and replacing broken parts. Metal products are now rarely used also because they are not flexible enough and their range is too scarce. Most often, installation is carried out in a sewer line with a diameter of 110 mm.

Professionals believe that fan lines made of dissimilar materials are not very durable. Ideally, all sewer parts should be selected from the same substance. If such a solution is not possible, then it is worth consulting with qualified engineers how this or that combination of materials used will behave. The fan pipe can have almost any geometry - it is permissible to run it vertically or horizontally. There are even some options that are mounted at an angle.

The exit from any vent system must be located outside the residential building, otherwise no efforts will help cope with the harmful odors that appear.

When installing both cast iron and plastic pipelines, the same products are used as for waste channels:

• fitting;
• pipes;
• bends;
• rubber cuffs;
• transition blocks;
• clamps (with their help the pipeline is attached to walls and other surfaces).

A little about McAlpine products

For more than 20 years we have had the opportunity to use the products of a famous Scottish company. It supplies our market with a wide range of its products. Everyone has heard about its siphons, bathtub fittings, drains, overflows, ventilation valves, risers for sewer lines and fittings for them.

Products from the famous McAlpine company

If you are going to make a high-quality installation of a bathroom, bidet, shower cabin, bathtub, then you cannot do without products 90-110 in/out 90-110mm l 120mm mcalpine mrwc1, 90-110 in/out 90-110mm l 260mm mcalpine mrwc2. The fact is that no, no, yes, and you need to make the transition from a diameter of 90 mm to 110, 120 mm or other diameters. Parts from other manufacturers may be used. But if you pick up mcalpine products and see them in use, you simply won’t want to use other designs.

They differ:

• quality;
• reliability;
• perfect tightness;
• compliance of geometric parameters;
• correctness of casting (that is, there are no sagging, wall thickness is uniform, etc.);
• high throughput;
• resistance to temperature changes (able to withstand reusable wastewater at temperatures from +2⁰С to boiling water);
• wonderful appearance.

Important! The service life of appliances from a well-known company is no less than the service life of the plumbing fixtures to which mcalpine products are connected. Agree, this says a lot.

Corrugation for toilet

The corrugated fan pipe for the toilet deserves special attention. In the recent past, in order to replace the corrugation on a toilet, it was necessary to seek the help of specialists. Modern materials have replaced the old cumbersome bends, and such a replacement can now be done independently. The corrugated toilet system is most often made of plastic. Such outlets are installed not only for the toilet, but also for sinks and bathtubs.

Corrugated pipe lasts a very long time. But experts strongly recommend using products from foreign manufacturers. The domestic assortment of this series, unfortunately, is not of the proper quality, and in this case it is one of the determining factors.

When installing a corrugated pipe, it must first be carefully inspected for damage. There shouldn't be such things. You also need to thoroughly clean the outlet edge of the system.

Put the corrugation on the side where there is a membrane, and you need to monitor the depth to which it covers the inlet hole. When working, you should pay attention to the fact that dressing is carried out as smoothly as possible, and there should be no distortions.

Watch the video

Dismantling a cast iron (fan) sewer tee

This type of assortment is very convenient to use; only the installation rules must be followed impeccably.

Using flexible risers

Before installing the toilet pipes, you must first calculate their dimensions.

When installing corrugated fan to the sewerage system, bends of 110 mm in diameter are used. Although the value of this indicator depends on the diameter of the toilet flush, which is usually 75 mm. Sometimes such a cross-section is not enough, since the strong pressure of wastewater can block the drain, which can even lead to a blockage in the toilet (this rarely happens). Taking these circumstances into account, a large diameter toilet pipe is used.

When installing a flexible drain pipe for toilet outlet, you should adhere to the following rules

:

• the diameter of the fan must be greater than the clearance of the main risers. Otherwise, in the presence of high water pressure, the seal will be broken;
• the reinforced sewer riser must be installed under a room that is not heated. And it should start in a warm room. This arrangement will provide high-quality exhaust ventilation. When carrying out the installation, you should remember that the vent pipe should not end in the attic, since there will be too much moisture in it, which can cause the destruction of individual building elements;
• One ventilation is enough for the whole house. If necessary, branching can be achieved using a special cross. If the house is large and has several bathrooms, then it is recommended to install its own drain pipe for each toilet.

Photo of branched ventilation
Fan pipes for toilets from the Czech company Alcaplast are considered one of the best.

Installation and replacement of valve parts

Such parts are installed during installation or disassembly of the network in the joining area of ​​the pipe assortment, or by inserting into the network. It is important to take into account that the volume of the valve must correspond to the dimensions of the pipeline. If this is not possible, then you need to install an adapter.

A few tips for this installation:

• When choosing a place for installation, you need to remember that subsequently it should always be accessible.
• Each model has an arrow indicating the direction of fluid movement; this must not be violated during operation.
• The arrow needs to be directed towards the drain, then it will function correctly.
• Before work, it is necessary to test the device for the level of tightness.
• If the tightness is small, then high vibration and noise occurs during operation. To fix this problem, you will have to remove the cover and replace the shutter. You can not completely change the entire shutter, but install a different sealed edging. It can be dismantled very easily.

Is it possible to vent the ventilation into the attic?

In a one-story or two-story private house, most owners install and replace toilet pipes with their own hands. In some cases, you can get by with one hood, but in large buildings where there are 2 or more bathrooms, it is necessary to install 2 ventilation risers. But each option has one thing in common - a ventilation outlet. Is it best to install the exhaust riser on the roof or in the attic?

Output to the roof

First things first. If the house is two-story, and the toilets on each floor are placed one above the other, then the design itself predicts that you can get by with one common riser. Although it is not recommended to take it out into the attic. Even with the optimal diameter, sewer “odors” will be heard throughout the space. After some time, unpleasant odors can be felt in the attic. Plus, a lot of warm, moist air will be released from the riser, which will easily turn into condensation during contact with the roof.

Over time, fungus will begin to appear in the wood, and moisture in winter will turn into icicles. That is why it is necessary to carry out the drain pipe to the roof.

This option has its own characteristics:

• it is enough for the riser to rise 25-35 cm above the roof. A hood that is too high will contribute to the appearance of ice plugs, since warm air escapes through it. It is not recommended to cover the end with deflectors or weather vanes, as they help trap warm air;
• You cannot install the outlet very close to windows or ventilation hoods, because the smell will be everywhere after a while. When the riser is removed to the opposite end of the roof, away from ventilation, the sewer “odors” will not be drawn back into the room. An option with a non-return air valve for waste pipes is possible if there is only one bath.

Important! When constructing multi-story buildings, the sewer riser has an outlet to the roof. This is ventilation. In this case, it serves as a funnel pipe.

Multi-angle roof outlets

A vertical riser can enter the atmosphere in three ways: at a slope of 90 degrees, 45 degrees, and without a slope - immediately vertically upward through the roof.

Repair work

When repairing this system, the following must be considered:

1. The volume of the pipe product must be greater than or equal to the riser.
2. The end of the pipe should be placed in such a way as to ventilate the unpleasant odor.
3. Such networks are stretched in heated rooms and finished in cold ones. They are not placed in attics, otherwise a bad smell will penetrate into the rooms.
4. The design of housing is connected with ventilation systems, as they are especially visible in the attics and roof.
5. Such a network is repaired by connecting to one drain riser, while the remaining risers are equipped with valves.

The presented material shows what a drain pipe is (see for sewerage), and makes it clear that, despite the simplicity of the installation steps, all work must be carried out strictly according to existing rules. And, if any difficulties arise, you can always turn to specialists for help and get qualified advice or assistance from them.

Watch the video

Universal drain pipe

I would like to highlight a universal drain pipe for connecting to the toilet, which can be used as an eccentric or corner connection. In this regard, it is equipped with all the necessary parts. You can use this element for lateral or direct connection of the knee, which can be adjusted in length.

The 70-368 mm model is in demand. The individual parts of the structure are glued together with PVC glue included in the kit. The versatility lies in the fact that the minimum distance between the axles is 70 mm, and the maximum is 368 mm with a step of 20 mm! Also, the element can be walled into the wall, if necessary. Why not a universal part?

Video description

This video demonstrates the consequences of the absence of a drain pipe and explains how this happens:

Acceptable reasons for non-use

The most obvious reason for refusing to install a drainage channel is a small one-story house with a minimum number of sources of waste water. With a greater height, the building should be provided with a riser with a diameter of 110 mm. This is enough to use the bathtub and toilet at the same time. In the case of an autonomous septic tank located nearby, the pipe can be replaced with a vent valve.

Example of a vent valve Source rus-line.com