General
The series of intelligent pressure boosting system BWS-HY is
developed based on PDI control technology, to control the pump
pressure within a certain range according to the water consumption
with features of complete functions, reliable quality, stable operation
and easy maintenance.
About BWS
BWS, the abbreviation of Building Water System or Best Water
System, implies the LEO’s ambition to build up the image of best
quality product range for water supply system in the market.
BWS series includes WG Non-negative Water Supply System, wX
Water Non-negative Supply System, HY Constant Water Supply
System and ZY Boosting Water Supply System. Together with WQ
sewage pumps, XBD firefighting pumps, LPP in-line pumps and LEN
end suction pumps, we have full range to satisfy the applications of
secondary water supply, drainage, fire-fighting and HVAC.
Product Composition
The complete device is composed from a pump unit, a pressure tank,
a pressure sensor, PDI and accessories. If necessary, auxiliary pumps
or pressure tanks can be added in the device.
Application
For water supply from wells or reservoirs
For domestic use,for civil and industrial applications
For garden use and irrigation
Operating condition
Maximum fluid temperature up to + 500C
Maximum sand content：0.25%
Maximum immersion: 80m
Minimum well diameter: 4″
Motor and Pump
Rewindable motor or full obturated screen motor
Three-phase: 380V-415V/50Hz
Single-phase: 220V-240V/50Hz
Equip with start control box or digital auto-control box
NEMA dimension standards
Curve tolerance according to ISO 9906
Application
Can be used to transfer clean water or other liquids similar to water
in physical and chemical properties
Suitable for small living water supply，automatic water sprinkler system，
small air conditioner system or supporting equipment etc
Pump
With 2 L pressure tank for automatic operation
Special anti-rust treatment
Brass impeller AISI 304 shaft
Max.liquid temperature：+ 40℃
Max. suction: 9m
Application
It is used for water circulation in small and medium-sized swimming pools.
Slightly dirty water with solids in suspension can be perfectly filtered.
Application
Can be used to transfer clean water or other liquids similar to water in
physical and chemical properties.
Suitable for industrial use andurban water supply, pressure boosting
for high buildings and fire fighting, garden irrigation, long-distance
water transfer, heating ventilation and air controlling, circulation and
pressure boosting for cold and hot water, and supporting equipment etc.
Pump
Cast iron pump body and support under special anti-rust treatment.
AISI 304 shaft.
Max. liquid temperature: +40oC.
Max. suction: +8 m.
Motor
C&U bearing.
Motor with copper winding.
Built-in thermal protector for single phase motor.
Insulation class: F.
Protection class: IPX4.
Max. ambient temperature: +40oC.
IE 2 motor (Three phase, power ≥ 0.75kw).
Application
To transfer clean water with liquid temperature between 0℃and 40℃
Application in water supply and drainage for factories, mines,
municipal facilities as well as field irrigation, ect.
Feature
All new design with ergonomic feature
High lift series with LEO high efficient hydraulic system
Reliable 4-stroke gasoline engine with low fuel consumption
and high quality crankshaft
Portable，durable and compact pump frame
Durable sealing system with special mechanical seal
Optional outlet selection
Pump
Anti-rust cast iron impeller and diffuser
Max.suction：5 m
Inlet/outlet: 2″3″
Engine
Single cylinder,4-stroke,Air-cooled
Max.power：3.8 HP / 5.4 HP
Displacement: 219 cc/306 cc
Rated speed: 3600 rpm
Application
For water supply from wells or reservoirs
For domestic use,for civil and industrial applications
For garden use and irrigation
Operating condition
Maximum fluid temperature up to + 350C
Maximum sand content：0.25%
Maximum immersion: 80m
Minimum well diameter: 3″
Motor and Pump
Rewindable motor or full obturated screen motor
Three-phase: 380V-415V/50Hz
Single-phase: 220V-240V/50Hz
Pumps are designed by casing stressed
Curve tolerance according to ISO 9906
