DRS32-4S

• The water pump structure adopts stainless steel sleeve to completely separate the iron core inside of engine from water and it deselects the traditional mechanical seal structure so that rhe conventional water seal leakage problem has been thoroughly resolved;the structure adopts ceramic bearing and ceramic or stainless steel spindle,which is wear-resisting,corrosion-resisting,ａnd lubricated by water naturally with lose noise;the total pump head operating voltage will not be overloaded and if it is applied which is applicable for hot-water circulation pressurization system;the pump can be equipped with water control automatic switch,witch is convenient for usage;the pump line box is designed with three-position speed adjustment switch so that the user can regulate speed in accordance with different environments and requirements.

PRODUCT USE

• The pump is application for cold/hot water circulation and pressurization;particulary,the shower set might lead to fire bacause of low or unstable water pressure and installation&application of this pump can easily totally solve the problem;in addition,it is also applicable for pressurization water supple of the household low water pressure,water supply of solar water heater,hot-water circulation of boiler,ａnd circulation pressurization of air conditioner&refrigerating system.

WORKING CONDITIONS

• 1.Pumped medium temperature scope:0℃~+90℃
• 2.Maximum application environment temperature:+40℃
• 3.Medium requirement:clean without sundries,mineral oil,stickiness,ａnd corrosiveness;
• 4.Chemical property:the property is closed to neutral without explosiveness and it is like liquid of water(the content of ethylene glycol up to 30%)
• 5.It is necessary to consult the manufacurer first if other liquids are extracted
• 6.Maximum operating pressure:5bar
• 7.Minmum inlet pressure:
  When the temperature is +50℃ 0.05bar
  When the temperature is +70℃ 0.3bar
  When the temperature is +90℃ 1.0bar
  The above-mentioned values are only applicable for elevation of 300m;as for the higher elevation,0.01bar should be added for every 100m increased.To prevent generated by cavitation erosion,the minimuminlet pressure should be maintained.
• The pump should be operated between±10% of the rating voltage;if the voltage is too low,the pump will be overloaded,which will lead to temperatureincrease of engine and decrease of pump head&pressure curve.