Product Features
- Fully automatic booster sets
- Can be equipped with 2-3 pumps
- Certified for use with drinking water
- Delivery: up to 630 m³/h
- Head: up to 160 m
About Lowara GS
The Lowara GS series booster sets are fully automatic booster sets for water supply. They are equipped with 2-3 fixed speed pumps (where one can be a jockey pump), control panel, SM30 controller and pressure transmitters, all mounted on a frame for easy installation. The SM30 is easy to set and can be connected to a BMS system via Modbus.
The GS series booster sets can be fitted with vertical e-SV multistage pumps. These booster sets are certified for use with drinking water according to WRAS, ACS and D.M. 174.
The GS series is also available with other pump series and in special versions on request.
The booster sets must be installed in areas protected against frost and with adequate ventilation to cool the motors. It is a good practice to connect the booster set to the suction and delivery pipes of the system inserting vibration-damping joints to limit the transmission of vibrations and resonance to the system.
The booster sets must be connected to pressurised tanks with an adequate capacity for the system to be made.
These tanks can avoid any problems due to water hammer that is created due to the sudden stopping of the electric pumps.
For this type of system, it is possible to install in the delivery piping diaphragm expansion vessels (hydro tube) that perform a pressure dampening function. It is always recommended to check the type of system to be made and choose the correct capacity of the vessels accordingly.
The total volume could be divided into two or more vessels.
For the sizing of the expansion vessels, see the specific chapter in this catalogue.
It is good practice to check the value of the maximum electric pump pressure to match the set with a vessel suitable for the pressure value
The GS series pressure booster units mainly comprise electric pumping stations assembled with two or three SV series vertical multistage electric pumps. A smaller electric pump can also be added to the main ones. Generally known as a jockey electric pump, it provides for minor usages in order to maintain system pressure without starting the service electric pump.
The GS series pressure booster units are constant speed sets and are used to distribute water in heating or filling systems. On demand jockey electric pump informations are available. The electric pumps are mounted on a single base together with the other hydraulic components, such as on-off valves, check valves and the delivery and return manifolds.
The electrical panel, supplied with a mounting bracket, is attached to the pressure booster unit base.
The electric pumps start and stop according to the signals sent by the pressure transducer to the electrical control panel.
The latter is fitted with an integrated electronic board. The electric pumps start and stop automatically depending on the water demand of the system.
These pressure booster systems are combined with expansion vessels (hydrotube) in order to guarantee stable operation and reduce the starting frequency of the electric pumps
