Characteristics and types of sewer pumping systems

Sewage pumping station (SPS) is a set of special equipment for the efficient transfer of domestic and fecal waste into the central sewage system or into a septic tank in the area of ​​household ownership. Establish the KNS in the event that the organization of water flow by gravity is impossible for any reason. For example, if the location of the bathroom in a private house below the level of the centralized sewer line. Let us consider in more detail what a CND is and what they are like.

The principle of operation and design features

Important elements of the design of the pump sewer system of any level of complexity are hermetic reservoir and pump. Drainage pipes from all sources, whether it be a sink, toilet, shower, washing machine, etc., by gravity into the tank, from where they are pumped to the disposal site using a pump.

Schematically, the connection of a compact household sewage pumping system for a private house is shown in the figure:

In this embodiment, the pump is connected directly to the toilet.

A more advanced option is to ensure the drainage of runoff water is complete sewage pumping station. It is a polymer tank with internal equipment, buried in the ground. Outside its mouth with a lid is left. There are options for mounting systems with horizontal and vertical placement. Complete KNS fully manufactured and assembled in the factory.

Household and industrial pumping units can be equipped with the following equipment:

• backup power sources;
• pressure gauges and pressure sensors;
• shutoff valves (valves);
• cutting elements for cleaning communications from large solid fractions in drains;
• automatic control systems;

The most important element of the design is the pump, which for sewage pumping stations can be submersible, cantilevered or self-priming.

Submersible fecal pump - is a compact unit of pressure action, made in a sealed casing of high strength material, resistant to aggressive environment. The device can be used in a universal format: in the state of immersion inside the tank with drains or as a surface installation. Suitable for domestic and business use.

Cantilever Pump - This unit is used for pumping industrial effluent, involves a dry installation, the need for a separate foundation and liner communication pipes.

Self-priming sewer pump - unit used for pumping highly polluted effluent. Most often it is used by public utilities when carrying out repair and cleaning works on runoff lines. It assumes a dry installation and does not require a prepared foundation.

Varieties of CNS

The classification of sewer systems is based on waste type, and accordingly stand out:

• household and household waste systems;
• fecal pumping station;
• for collecting and pumping industrial waste;
• for pumping rain drains;
• KNS sewage treatment plant.

Units differ in size, performance, functionality and the corresponding price. Depending on power The following species are distinguished.

1. Mini-stations (up to 400 W) are installed in the bathrooms of summer houses and apartments.
2. Medium-sized units are suitable for private households and small businesses. The installation of sewage pumping stations of average power is carried out in a certain plot of land.
3. Large powerful stations use large-scale production and sewage treatment plants.

The choice of sewer system for a private house

In the course of construction work, it is important to decide on the choice of a place for arranging a septic tank, if there is no central sewage system nearby, as well as a pumping station for pumping wastewater. This can be a mini-option for a bathroom, as well as a complete medium-power KNS installed on the site. To resolve the issue, consider the following points:

• depth of supplying communications;
• volumes and quality content of runoff waters;
• type and number of pumps;
• unit maintenance system;
• material of which the casing of the pumping station is made;
• dimensions and diameter of the case;
• performance (power).

Important! For the northern regions, the presence of hull insulation is important. For the manufacture of the body, durable, corrosion-proof materials are used: reinforced fiberglass, polypropylene, polyethylene.

Better when the internal working elements are made of stainless steel. CNS control can be semi-automatic or automatic, the second option is more expensive at a cost.

Leading position in the production of modern pumping equipment is a Danish company Grundfos. The brand's assortment also includes sewage pumps and stations for various applications: from household and household needs to industrial scales. Prices for household ready-to-use CNS of this brand vary in the range of 180,000 - 500,000 rubles. You can buy an easily mounted modular pumping system in specialized stores.

Installation of KNS - a process requiring highly accurate skills and accurate execution of a sequence of actions. Therefore, it is strongly recommended that the connection be made by a qualified plumber. The slightest inaccuracy is fraught with unpleasant emergencies and the breakdown of expensive equipment.