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.
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.
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.
The type HD、HDS、HDQ、HDC pumps are based on independent research and development technology which are especially suitable for varying level and high head applications. They are used for sending water at normal temperature or liquid which is similar to water in physical, chemical properties, generally not more than 50°C. For special liquid, please contact us to get solution for that.
Application field Municipal engineering, hospital, farmland irrigation and drainage, water conservancy project, industrial water supply system, building, hotel, dock.
Scope of performance
◆ Capacity: 900-27000 m3/h
◆ Head: 5-20 m
◆ Discharge diameter: 350-above 1400 mm
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.
Cast iron pump body and support under special anti-rust treatment.
AISI 304 shaft.
Max. liquid temperature: +40oC.
Max. suction: +8 m.
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).
vertical mixed flow pumps are energy-saving product with high efficiency, developed and designed by LEO according to national principles of energy saving and emission reduction to meet market demands. The series of products adopt advantages of both domestic and overseas similar products, and combine many years manufacturing experience of LEO, which keep products improving.
The series of product are suited to deliver clear water, rainwater, seawater and sewage, which application to power plant as circulating water pump, iron & steel plant and quay, water supply and drainage in city and irrigation project.
Water supply systems
Heating systems for commercial buildings and district heating
Cooling plants for industrial processing and air-conditioning units
General transport for industrial processes
Fire fighting system
Liquid PH value:4-10
Max head: 36.5m
Max operation pressure: 16 bar
Altitude: up to 1000 m
Protection class: IP 55
IE 2 motor as standard.IE 3 motor is available on request
EN 1092 and DIN 2576 standard
Max. Ambient temperature:+40°C.Ambient temperature above40°C,or
installation at altitude of more than 1000 m above sea level, require the
use of an oversize motor. Because of low air density and poor cooling
effects, the motor output power P2 will be decreased. See the picture.
For example, when the pump is installed at altitude of more than 3500 m
above sea level，P2 will be decrease to 88%.when the ambient
temperature is 70°C，P2 will be decreased to 78%.
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.
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
Anti-rust cast iron impeller and diffuser
Max.power：3.8 HP / 5.4 HP
Displacement: 219 cc/306 cc
Rated speed: 3600 rpm
• 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 -Special anti-rust treatment for cast iron pump body and support -Anti-block system for impeller -Brass impeller AISI 304 shaft -Max. liquid temperature: +40c -Max. suction: +8m • 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: +40C -IE 2 motor (Three phase, power≥ 0.75kW, AP220 excluded)