WASTE WATER LIFTING STATION WITH DOUBLE PUMP

Model BBS 102

Lifting station in parallelepiped-shaped polyethylene, for the lifting of dirty or dirty clear water made with the technique of rotational molding to uniform wall thickness. The station can therefore be equipped with a clear water pump with closed impeller or for sewage type Vortex, with discharge piping and male brass thread connection of maximum diameter 1″ ½. The pump is operated by electronic control panel for direct start and float level switches; the system is also equipped with an acoustic and/ or visual alarm.

The station is equipped on the top with two inspections with plugs and gaskets watertight odor, a DN125 for the inspection and extraction of the basket of coarse filtration made of polyethylene placed in wastewater inlet and a DN400 for maintenance operations. Both inspections are shaped to accommodate standard standard PVC square extension cockpit easily available on the market.

 

Standard configuration of the product

Function and use

The lifting station is generally used downstream of small discharges of domestic type with the purpose of lifting at high altitudes and bringing rainwater, dirty water and sewage with solids of modest dimensions.

The lifting station consists of a polyethylene tank, suitably shaped to withstand the stresses of the ground, with the function of collecting rainwater or dirty waste water. Inside there is a pumping system for lifting the wastewater to a greater extent. Depending on the type of water collected, suitable pumps will be used for lifting wastewater or water with the presence of small solids or for clear water; all controlled and controlled automatically by level switches and an electronic panel that also performs electrical protection function and possibly alarm. The lifting station is sized according to the specific operating conditions for which it will be used.

 

Sizing

The identification of the hydraulic characteristics of the pumping system and the volume of the storage tank, takes into account the following operating conditions:

• Flow rate in the peak hour: it is in these conditions that each pump must be able to dispose of as much as in the inlet; in the case of large users it is necessary to insert a coefficient of contemporaneity.
• Inflows of meteoric origin: normally, in the case of a double pump, we tend to size the pump can dispose of the maximum flow alone, it will be sufficient that the flow is disposed of by the simultaneous operation of the two pumps. In the case of a single pump system, the storage volume shall be sufficient to compensate for the difference between the inlet flow and the pumping flow.
• Geodetic height difference to be overcome: (ie the difference in altitude between the pump and the outlet point of the fluid); the higher the pumping height the greater the power of the pumps
• Length of the delivery pipe and the number of curves present: also in this case the further we will have to pump the fluid and the more tortuous will be the path of the pipe, the greater will be the power of the pumps
• Pipe diameter: fixed head and flow necessary, the adoption of pipes of greater diameter allows, within certain limits, to decrease the power engaged
• Frequency of pump starts; this is a characteristic data of the type of pumps adopted and the configuration of operation. For pumps with a power of less than 5 kW, a minimum continuous operation of 2.5 minutes is indicated in the technical literature, with caution for our pumps a number of starts per hour equal to 8-12
• The possibility of short power cuts. Assuming a period of maximum power outage equal to a quarter of an hour you can expect an additional volume equal to flow rate/4, otherwise the autonomy time may otherwise the autonomy time can be deducted from the formula Volume accumulation/ hourly flow of inflow.

 

Calculation parameters

The parameterization of the calculation system takes into account:

• Type of waste water: white water, dirty water with solids up to 5mm. Depending on the type of waste, the type of pump is chosen.
• Flow to be disposed of: in relation to the inlet flow the volume of the storage tank is defined so that the pumping can operate under optimal conditions.
• Head: in relation to the lifting height, the distance to travel, the roughness of the pipeline is identified the characteristic of the pump that determines the power and voltage.

 

Accessories available and recommended

• Round/square extension
• INOX/PE grilling basket
• PE cockpit
• Manhole covers

 

Maintenance of the babysol lifting station

Installation and Start-up

For installation follow the instructions in our manual “Laying and Handling”.

After having finished the correct assembly of the entire system and all the additional components, have carried out the preliminary checks indicated and after making sure that the connection of the pipes, as well as the electrical connections have occurred without any problems, it is possible to put the system into operation.

IMPORTANT:

Commissioning can only take place by qualified and authorized personnel. Still carefully check the installation and wiring (clamping clamps) of the electrical panel.

Maintenance

For a proper management and maintenance of the plant it is necessary to carry out periodically (at least once every six months) the following operations:

• Intensive cleaning of the entire tank, pumps and float switches
• Visual inspection of the entire tank, piping and seals • Visual inspection of the pump casings to check for any external defects and visible wear
• Check the pressure pipes, fittings and valves against wear and tear
• Check the correct functioning of the pump by checking the current absorption and wear of the impeller including the possible removal of the deposits present there
• Check the insulation connections to verify their tightness and recognizable wear
• Control of pump motor insulation
• Checking the correct functioning of the thermal locking device
• Checking the correct functioning of the control cabinet indicator lights

It is advisable to carry out these checks even after a prolonged period of inactivity or temporary storage.

 

PUMPS

The pump must be checked at regular intervals. In the event of increased operating noise, reduced flow rate or vibration in the piping system, it must be checked that the pump housing and impeller do not show any solid impurities or signs of obvious wear. A prolonged period of inactivity and storage, especially under conditions of immersion, can cause the malfunction or blocking of the same.

 

Babysol lifting station compliance certification

Made of medium density polyethylene, through the system of “rotational molding”, they comply with the requirements of the directives:

• Machinery Directive 2006/42/EC
• Low voltage 2006/95/EC
• Electromagnetic compatibility 2004/108/EC

 

Rules applied in particular

• UNI-EN 12050-1/2/3/4
  
• EN 60439-1
  
• EN 55014-2
  
• EN 61000-3/2/3

 

WARNINGS

Please note that the correct operation of the entire lifting system depends on the correct electrical and hydraulic connections of the station to be carried out by specialized personnel according to the provisions of current legislation and the “Good Technical Standards” in force, by the electrical, hydraulic and installation regulations as reported in the accompanying instruction booklets, by its correct sizing (check the compliance of the design data provided in relation to the specific use case), the characteristics of the liquid to be lifted in accordance with those given in the design data, its state of use, its installation, its periodic maintenance and the compliance of the material provided indicated on the DDT.

We recommend to check the suitability of the plant with the competent body of the territory.

The system solutions suggested do not replace as role and function neither the competent Technician nor the Authority which is responsible for the authorization and/ or the related testing.

Therefore, we disclaim any responsibility whenever the correct choice of plant solution is not performed authorized by Technician or competent body, the correct procedure of management and maintenance of the plant and the inadequate use of the equipment and manufactured parts of the plant itself.