What is a built-in submersible pump and an external submersible pump?

What is an external submersible pump
External submersible pump suction liquid submerged submersible pump through the impeller, directly from the outlet of the pressurized water chamber, the structure is simple, relatively high efficiency, the typical external submersible pump. In order to improve the cooling conditions of the exterior submersible pump, often the power of the submersible pump motor jacket made of jacket, the pump out of the high pressure area of ​​the liquid introduced jacket cooling
Motor.
What is built-in submersible pumps
Built-in submersible pump inhaled by the liquid, through the impeller pressure outflow, usually cooling the oil chamber, and through the motor surrounded by the annular flow channel, so that the liquid cooling the motor and then out of the pump outlet, the pump efficiency decreased slightly, but the pump The use of reliability greatly increased for the typical built-in submersible pump. Semi-built-in submersible pump structure features between the exterior, built-in submersible pump two
, Usually pumped out of the water pipe through the part of the motor housing and chassis together, the motor to play a certain cooling effect, such as low water submersible pump. The turbine of the tubular submersible pump is located outside the submersible pump. The pump impeller is housed inside the motor rotor, and the two are integrated. As the water flowing through the rotor of the motor rotates the rotor, the motor is generally filled with water
For example, water-filled submersible pump, larger diameter, low height, good cooling conditions.

Shanghai Weihu Pump is a modern enterprise with joint-stock system as product, scientific research, development, design, production and sales. As a professional water pump manufacturer , wholesale submersible pump,  choose Weihu Pump, we are committed to you Procurement to provide professional consultancy services to ensure that you buy the right model, the right material, cost-effective pump products, if you have other aspects of the problem, you can call our technical experts, experts will give a professional answer.