Receiving funnel for sewerage. In what cases is it necessary to install a siphon with a jet break?

Drip funnels HL (Hutterer & Lechner) for air conditioners - HL20 and HL21 are used for discharging condensate and drainage into sewers from air conditioners, ventilation systems, refrigeration equipment, etc. In cases where there is a small amount of condensate and its discharge is irregular, it is necessary to use siphons with special odor-blocking devices.

The drip funnel model HL 21 has a water seal and an additional mechanical odor-locking device, which starts working when the water seal dries out.

Drip funnels HL

Siphon with jet break required for installation in in public places in accordance with SanPiN 2.4.1.2660-10. Prevents the entry of E. coli from the drain into the sink due to the non-contact connection to the sink.

The main purpose of the siphon is to limit odors from the sewerage system so that they do not enter the premises where they are located. plumbing fixtures. This is a water castle.

Here is an excerpt from the Sanitary and Epidemiological Requirements for the Design, Content and Organization of the Work Mode in Preschool Organizations Sanitary and Epidemiological Rules and Standards SanPiN 2.4.1.2660-10

14.9. At the point where the production baths are connected to the sewer, there must be an air gap of at least 20 mm from the top of the receiving funnel, which is installed above the siphon devices.

Why do you need a siphon with a jet break?

By sanitary standards The sewage system (toilets and washbasins) should not come into contact with the production area associated with the preparation of products for industrial purposes (for example, canteens of all levels from kindergarten to the restaurant). This can be achieved in two ways.The first is the construction of separate systems, with separate outlets into the well.Second installation siphon with jet break.

Simply put, this is done to prevent any microbes from getting through the pipe into the sink from the sewer. The presence of a rupture in the stream does not relieve one from the obligation to install a siphon elbow (hydraulic seal).

Now siphons with a jet break are produced by both domestic and foreign manufacturers.

In any public establishments, such a device must be installed, in accordance with plumbing standards. It is also advisable to install it in apartments.

How does a burst siphon work?

The standard type of siphon connects the drain hole to the sewer outlet pipe. It protects against penetration unpleasant odors using a water seal system. A siphon with a jet break has a gap between the outlet and the receiving pipe. Thanks to this, a direct connection between the outlet point of drain liquids and the main part of the water seal system is eliminated. First, the water enters a special funnel, and then into the pipe. This design leaves no chance for pathogenic microbes, which is why it is recommended to install a siphon with a flow break. You can buy it at any time in our plumbing store in Moscow.

Types of siphons

We offer the following types of siphons with a stream break:

• Siphon with a receiving funnel with an outlet of 32 mm;
• Siphon with a receiving funnel with an outlet of 40 mm;
• Siphon with an oval receiving funnel and a universal type outlet pipe;
• Siphon with an oval receiving funnel and a horizontal outlet pipe.

Features of using a siphon with a jet break

The water jet gap is 20-30 mm. This gap is enough to interrupt the path of microbes. Also this distance will not give annoying sounds falling water. This important condition, allowing you to maintain hygiene standards in public places. The system can be designed so that drains from several washbasins converge into one funnel. Then the sewerage device will be used rationally. We offer only high-quality siphon with a stream break, the price of which is very reasonable.

Natural retention of moisture on the surface is a feature of flat roofs. It accumulates due to rain and melting snow. To prevent flooding of upper floors and staircases, they are used special devices. Receiving funnel For storm sewer on the roof drains water from the roof in a timely manner, protecting institutions, apartment and private buildings, and industrial facilities with equal success.

Purpose of funnels for storm drainage

Water inlet for flat roofs

The main task of the products is to remove liquid from the roof. To do this, a drainage mechanism is installed on the roof, combining several funnels. They are mounted in a certain sequence, covering the entire surface. Through them, water flows through pipes into a sewer, ravine or ditch, beyond the territory of the facility.

Funnels must meet certain standards:

• durable, waterproof contact with the roofing waterproofing system;
• sufficient length of the pipe for connection to the riser in the attic or in the ceiling room;
• a filtration system that protects the pipe from blockages.

Together, these parameters will ensure the rapid removal of excess liquid from the roof.

Types and design of funnels

Leaf catcher for roof drains

There are many types storm funnels, combined into 2 basic categories:

• flat models with grilles;
• bell-type modifications.

In the first case, installation is carried out on monolithic roofs without a sand layer. The gratings are made in the form of cells, squares, ovals, etc. All storm water flows from above, so the grate is at or slightly below roof level. Protection against debris is provided by a galvanized mesh, umbrella or internal cone.

The bell structure includes the funnel itself, the inner umbrella, and the cap (glass and lid). The edges are equipped with special teeth that clamp the roofing material tightly adjacent to the surface. There are ribs inside that open a small gap for water to drain. As a result, leaves, paper and other debris do not fall into the pipe, preventing clogging.

Production materials

Bell-shaped funnel for storm drainage

When choosing a material, facility owners and specialists are guided by its ability to withstand moisture. Because of this preference for a long time favored cast iron and galvanized steel. Today they are also widely used, but are largely being replaced by plastic, which has already proven its effectiveness.

• Cast iron monolithic models. A common version, adapted to tightly clamp the roll surface. It forms a waterproofing carpet, quickly removing excess moisture. Cast iron is also in demand due to decorative properties– bell structures created from it look representative.
• Steel modifications. A reliable option, used both in lattice models and in hoods. Funnels are made from semi-boiler, asphalted, galvanized iron, which guarantees a long service life and protection against corrosion. Performance properties are practically not inferior to cast iron, while steel costs much less.
• Plastic option. It is characterized by increased practicality and ease of installation. Such structures better withstand the effects of moisture, temperature and other environmental factors. The service life is not limited, and the price is much lower, which is especially important when completing industrial facilities.

The choice of material is determined by the characteristics of the object, including its area, appearance, aesthetic requirements.

Features of installing funnels on the roof

The installation of structures, their number and the interval between funnels depends on the characteristics of the object: area, configuration, rain volume and other parameters. In practice, the distance between the 2 elements is about 25 meters, which is enough for timely drainage. A smaller amount leads to clogging of the funnels with subsequent accumulation of liquid on a flat surface.

All components are connected to drainpipes, in case of overload is formed backup system. It is activated during spring melting of snow, heavy rain or during prolonged rains. In this case, it is important that the receiving part does not become clogged.

Installation is carried out in several stages:

1. The internal element is inserted into a special hole on the roof. The fastener should not be rigid.
2. The outer part is inserted from above, passing it through the roofing carpet and insulation. A seal ring is placed between the 2 elements.
3. The cap apron is installed on a roofing felt lining and an additional waterproofing layer.
4. The funnel is inserted into the bowl roof covering, which is fixed with a ring and fastening components.
5. The process completes the installation of the protective grille.

Success is determined by competent work planning and qualified specialists.

An important element of roofing drainage system building (structure) is a drainage funnel. Its main functional purpose is to organize the collection and removal of excess moisture from precipitation or snow from the roof surface.

When building houses with flat roofs, drainage funnels are installed in roof areas specially prepared for this purpose. Gutters are selected according to their design and structure, depending on the type of used roofing materials . Such funnels are used on bitumen roofs With internal system

drainage. Correctly selected design drainage funnel

In addition, such a drain will fit harmoniously into common system drainage system, will not violate its technical and functional integrity, and will become a kind of aesthetic completion of the overall architectural plan of the roof.

Design Features

The drain funnel has a complex interface with other structural elements. On the one hand, she is integral part drainage system. The pipeline for draining rain and melt water begins from here. On the other hand, the roof drain is part of the roofing system.

It should not violate the integrity of the waterproofing layer and the topography of the adjacent roof surface. This is especially important to observe at the junction of the funnel material with the roof waterproofing.

Considering that this element of the drainage system is located outside, it physical properties must meet strict climatic requirements:

• withstand significant differences temperatures;
• do not crack or crumble from exposure to severe frosts and winds;
• do not soften, lose shape and strength when exposed to strong heat in summer.

Freezing of water should not lead to its destruction. Also, the design of the funnel should prevent debris and other unwanted inclusions from entering the drainage pipes. In addition, the material from which drainage funnels are made must be resistant to solar radiation (ultraviolet radiation). It must also be resistant to acidic environments.

Some requirements for funnels

Manufacturers produce a wide range the lineup drainage funnels. They differ in shape, size (diameter, height, depth), design features structure, type of material, method of installation and fastening in the roofing system.

Most often used as a material for funnels polymer materials with high resistance to weathering and ultraviolet radiation. Less often metal can be used (cast iron, made of of stainless steel) funnels. By design they distinguish roof drains vertical and horizontal.

Taking into account the climatic characteristics of Russia, funnels with forced electric heating are popular in our country. They differ from conventional ones by the presence of a fuel element in their design. The thermostat that controls the operation of the heater is set to a temperature range from -5°C to +5°C. When the heater is operating, ice does not form in the drainage funnel to prevent outflow. Electricity is supplied using a special three-core solid cable (adapters, connections are not allowed).

Installation of a drainage funnel

Drainage outlets must be level and firmly installed in the intended place. seat. Funnels are equipped with airless flow filters. These design elements significantly increase the throughput of the drainage system during storm flows. Depending on the design of the roof and the funnel itself, various combined types fastenings

For example, on bitumen roofing types, the funnel flange is placed between the insulation layers. Additionally, the funnel can be attached to the base of the roof with screws. Similar installation technologies are used on other types of roofing (EPDM membranes, single-layer PVC coatings).

Funnels can be purchased at a low price in Moscow in the Santekhkomplekt online store. We are ready to offer discounts to wholesale buyers.