PID Control Box
The key control part of the water supply system. The inverter,
circuit breaker, relay, contactor, alarm device, signal indicator
and remote monitoring device are integrated with reasonable
layout inside the control box.
Type HL、HLZ pumps are designed to handle clear water or any other kinds of liquids with similar physical and chemical properties to water, so they are widely used for agricultural irrigation, transportation of circulation water in power plant, shipyard, municipal water supply and drainage and other fields. The temperature of the liquids pumped should be lower than 50℃.
Municipal engineering, hospital, farmland irrigation and drainage, conservancy project, Industrial water supply system, building, hotel, dock.
Scope of performance
◆ Capacity：440-8400 m3/h
◆ Head：3.4-20 m
◆ Inlet and outlet diameter of the pump in mm：300-800 mm
• 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)
GLN series high efficiency vertical multistage long shaft pump keeps high efficiency, good cavitations performance, rational structure, long operation life and easy and convenience maintenance and installation.
The products are widely applied to condenser of 50-1000 MW generation set for delivering condensate water, and also applicable to water supply and drainage project which demands high suction performance, high efficiency and high head.
◆ Capacity：120~2200 m3/h
◆ Head：36~360 m
◆ Temperature：≤80℃，Special requirements can be achieved for up to 120℃
◆ Speed：1480 r/min
◆ Suction diameter：250~900 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).
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
Pump design complies to BS EN 733/DIN 24255 standard
Conveying medium: Low viscosity, non-inflammable and non-explosive liquids not containing solid particles or fibers
Speed：1450/2900 rpm at 50 Hz，1 750/3500 rpm at 60 Hz
Flow range: 0.5-440 l/s
Head range: 2 152 m
Liquid pH value: 4-10
Max. operation pressure: 10 bar, 16 bar on request
HVAC: Circulation of hot water, boiler mix-flow, temperature mix-flow,
intermittent heat supply, etc.
Air conditioning system: Cooling water circulation.
Water supply system: Filtration and transfer at waterworks;
Pressure boosting in main pipe.
Industrial applications: Washing& cleaning systems, boiler feeding,
cooling water circulation, water treatment systems, and auxiliary
Flow: up to 760 m3/h
Head: up to 85 m
Power range: 0.37 -132 kW
Max ambient temperature：+ 40°C
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%.
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.