Types of nozzles for washing the sewer

If a small sewage blockage is eliminated by a plunger, then for a full-fledged cleaning of the highway, more serious devices will be required. The washing machines consist of a high-power pump and a flexible hose, on the end of which special nozzles are installed. They help break up and soften hard, stagnant deposits.

Definition and purpose of nozzles

Nozzles for washing the sewer are used in the hydrodynamic method of cleaning the pipeline. They are connected to the hose of a powerful apparatus introduced into the drain hole, which under high water pressure can remove plaque from the inner surfaces of the pipes and eliminate even hard blockages and nitrous oxide.

Previously, this technique was only the final stage after cleaning with a cable, but now, thanks to powerful pumps, you can do without mechanics.

This method is optimal for plastic lines, since it minimizes the risk of damage to the pipe walls.

For work, special-purpose hydrodynamic apparatuses and car washes are used. The nozzles that make washing more effective are connected to both devices.

Types of products

Flushing nozzles are divided by design features and depending on the nature and location of the blockage.

Operational separation

Clogging in sewer lines is formed from substances with different compositions and concentrates on different sections of the pipe. Depending on this, after a television inspection, an element is selected that can remove the obstacle most effectively. He can be:

• bottom - used to eliminate sand, silt and dirt, most often deposited on the bottom of the pipe;
• rotary - removing fatty deposits from the walls due to rotation (the greater the speed of movement, the more efficient the cleaning);
• penetrative - able to remove the hardest blockages;
• chain-rotary - coping with compacted sediments.

There are universal nozzles suitable for all types of blockages.

Design Classification

Nozzles are made with different types of heads, some of which consist of several structural elements. The following models are in demand among professionals:

• Direct. They are suitable for primary punching of cork, because they allow you to drag large residues of paper, fabric, food out.
• Pear-shaped. Use to clean in places where there are bends.
• Trihedral. Dense obstructions are removed by sawing, cutting and drilling.
• Pomegranate. They are used for complex cleaning of pipelines with a section of up to 300 mm under high pressure.
• Details with a sled. Thanks to nozzles, they can cut roots, fat and mineral deposits.
• Wedge-shaped. This form is usually bottom nozzles. They are selected not only for cleaning sand and silt, but also for processing large highways and moving heavy residues.

Steel cutters are also effective for cleaning sewer pipes. They are equipped with interchangeable ceramic heads. Due to the high rotation speed (6000 rpm), such parts save the pipeline in emergency conditions. A quick insertion of a milling cutter into a mash formed by roots, dirt and grease leads to its delamination and further washing out with a water stream in the shortest possible time.

The principle of operation of units with nozzles

In the process of cleaning the sewer, a high-pressure water stream destroys and removes deposits. Nozzles enhance the action by breaking up dense or prying slippery layers of blockage.

The equipment is selected depending on the length of the communication line, the availability of branches and the maximum section of pipe sections.

To flush the pipeline with the help of hydrodynamic equipment with nozzles, the degree of clogging and the location of the main plug are first determined by mechanical or tele-inspection methods. To make this possible, when installing the sewage system, inspection hatches and inspection wells are installed. Revision must be at the connection sections of the pipe segments.

Then they work with hydraulic equipment:

1. Regulate pressure indicators that are suitable for a particular branch of the line. If it is a private house or apartment, it should not exceed 150 bar. If the pressure is excessive, there is a risk of injury to the pipe walls up to rupture. In industrial environments where strong communications are installed, pressure can be higher.
2. A suitable nozzle is installed depending on the type of blockage and its location. You also need to consider the tortuosity of the trunk section.
3. The hose is lowered into the inspection hole and carefully advanced along the branch.

During the procedure, the cleaning stream is sprayed at various angles, the plug breaks up, and the internal surfaces are cleaned. Due to the flexibility of the hose part and the use of a suitable nozzle, the hydraulic device perfectly flushes the rotary communication zones.

With severe blockages, if the hose advancement is unrealistic, it is pulled out. The nozzle is replaced with a more powerful version, the pressure rises as much as possible. After removing the problem, the hose is carefully pulled out, the inspection hole closes.

The nuances of flushing home sewers

Sewer pipe washing plants at home are easy to operate and equipped with a manual. It details the steps for using the device. However, there are nuances, the knowledge of which will help a beginner to effectively cope with the task:

• The holes on the nozzle elements are arranged so that a jet thrust is formed. It gives movement to the hose, so you do not need to push it with force.
• The flexible element after entering the sewer system is carefully moved in the direction of the riser.
• The hose is introduced not only into the inspection hatch, but also into the drain hole of the toilet bowl or sink.
• After removing the blockage, the pipes are washed with a stream of hot water. It is good to add a disinfectant detergent.
• The hose part is removed from the pipeline only after the device is turned off.

Devices for cleaning the pipeline are used for preventive cleaning and in the event of an accident. If you decide to buy such equipment, focus on the length and diameter of the line, and when selecting nozzles, consider the material from which the pipes are made. This will save money, because more powerful units are more expensive.

It is advantageous to buy nozzles with a set so that the necessary element is always at hand. To quickly detect blockages, get video equipment for television diagnostics.

With the right approach and choice of hydraulic engineering and nozzles, blockages of any complexity are eliminated without the involvement of professionals.