Leo LVS / LVR Stainless Steel Vertical Multistage Pump

Leo Pump LVS/LVR - Stainless Steel Vertical Multistage Pump

Application

·   Suitable for transferring liquids of low viscosity, non inflammable and non - explosive, not containing solid particles or fibers

·   Water supply & drainage for high - rise buildings, filtration and transfer at waterworks, pressure boosting in main pipe

·   Washing and cleaning systems, boiler feeding, cooling water circulation, water treatment systems, auxiliary system, support equipment

·   Ultra - filtration systems, reverse - osmosis systems, distillation systems, separators, swimming pools

·   Agricultural irrigation : sprinkder irrigation, drip - feed irrigation

·   Food & beverage industry

·   Fire - fighting system

Operating Conditions

·   Low viscosity, non - inflammable and non - explosive liquids not containing solid particles or fibers. The liquids must not chemically attack the pump materials. When pumping liquids with a density or viscosity is higher than that of water, a motor with a higher output power rating shall be used.

·   Liquid temperature : -20C - 120 ° C

·   Flow ranges : 0.7-240m / h

·   Liquid pH value : 4- 10

·   Max ambient temperature : -40 ° C

·   Max. operation pressure : 33 bar

·   Altitude : up to 1000 m

Ambient Temperature

Max. ambient temperature : ±40°C. Ambient temperature above 40°C or installation at altitude of more than 1000 meters 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.

Motor

·   IE2 motor (IE 3 motor optional)

·   Totally enclosed & fan – cooled

·   Protection class : IP55

·   Standard voltage : 50Hz 1x 220V / 3x380V

Minimum Inlet Pressure – Npsh

·   Calculation of the inlet pressure " H " is recommended in these situations :

·   The liquid temperature is high.

·   The flow is significantly higher than the rated flow.

·   Water is drawn from depths.

·   Water is drawn through long pipes.

·   Inlet conditions are poor.

Maximum Inlet Pressure

The following table shows the maximum permissible inlet pressure. However, the current inlet pressure + the pressure against a closed valve must always be lower than the Max. permissible operating pressure. If the maximum permissible operating pressure is exceeded, the bearing in the motor may be damaged and the life of the shaft seal reduced.