Marine Pump Sea Water Pump

Specifications

marine pump sea water pump

This pump is widely used for the irrigation for agricultural land, the water supply and sewage for industrial and mining enterprises, and the water utilization for the people and animals in altiplano and mountain area, the electric supply is 380V 50HZ 3phase AC

1. Operation parameters:

(1). Flow range: 10-500 m3/h

(2). Lift range: 10-600m

(3). Applicable well Borehole diameter: φ175-φ400mm

(4). Diameter scope:φ32—φ203mm;  

(5). Temperature range: -15—80°C.

2. Product overview:

QJ submersible pumps are widely used in

(1). agriculture irrigation, sprinkler    irrigation, well water lifting

(2). water supply, drain system of industrial and civil building

(3). the hill, mountain areas' water diversion, drainage of low-lying area

(4). water supply, drainage of industrial and mining enterprises in urban and rural area

(5). all the other water facilities

3. Application:

(1). For water supply from wells or reservoirs.

(2). For domestic use for civil and industrial application.

(3). For garden use and irrigation.

4. Motor and pump

(1). Rewindable motor or Full obturated screen motor

(2). Three-phase: 380V-415V/50HZ;Single-phase:220V-240V/50HZ

(3). Equip with start control box or digital auto-control box

(4). Pumps are designed by casing stressed

(5). NEMA dimension standards

(6). Curve tolerance according to ISO2548

5. Using condition:

(1).  380V voltage deviation is no more than ±5%,frequency is 50HZ, three -phase power deviation is no

       more than ±1%.

(2).  Motor cavity must be filled with water.

(3).  The first stage impeller of the pump should be more than 2mm below the moving water surface, pump  

       unit should be less than 70m below the static water level.

(4).  The distance from the motor bottom to well bottom must be more than 3m.

(5).  Water temperature should be no more than 20°C.

(6).  Sand content of the water ( by mass) should be no more than 0.01%.

(7).  PH value of water 6.5-8.5.

(8).  Hydrogen sulfide content of the water should be no more than 1.5mg/L.            

(9).  Chloride ion content of the water should be no more than 400mg/L.

(10).  Water yield of water source should ensure the requirements of pump continuous working.

6. Characteristics:

(1).  Motors and pumps assembled into one.

(2).  Simple structure.

(3).  Easy installation and removal, small area.

(4).  Simple using and maintenance.

(5).  Safe and reliable operation, no pollution to water, etc

Structure explanation:

1.Submersible electric pump is composed of five parts: water pump,submersible motor,water line,waterproof cable and control switch. Water pump belongs to single suction multistage vertical centrifugal pump.

2.Submersible motor adopts water-filled wet structure,internal chamber was filled with water for cooling the motor and lubricating the bearing.In the operation,due to the changes of temperature,the pressure of the filled water in the internal chamber also changes,it can be automatically regulated by pressure-regulating unit in the lower part of motor.

3.For preventing the sand getting into the motor,the sand-preventing unit including sand slinger and skeleton oil-sealed was installed in the upper part of motor,the whole motor was sealed tightly.

4.There are water injection hole and exhaust hole in the upper part of the motor and discharge hole in the lower part.

5.There are thrust bearing and thrust collar,mainly for sustaining remnant axial force of pump and the empty weight of motor's rotor.

6.The winding of motor stator adopts water-proof electromagnetic wire with good insulating and water-proof functions and rotor adopts squirrel-cage structure.

7.When used in the environment where there are large grittiness or corrosive water,it should adopt the submersible pump made from casting stainless steel or copper alloy.