Depending on the temperature, pressure, viscosity, and presence or absence of particles in the delivery fluid, the shield pump can be divided into the following categories: (1) The basic transmission medium temperature does not exceed 120 ℃, head does not exceed 150M. Various other types of shielding pumps can be based on the basic type, through the modification and improvement. (2) Reverse Circulation In this type of shielded pump, the direction of fluid flow to the bearing lubrication, cooling, and cooling of the motor is exactly opposite to the basic one. Its main feature is not easy to produce cavitation, especially for easy vaporization of liquid transport, such as liquefied petroleum gas, chloroform and so on. (3) High temperature type General delivery medium temperature up to 350 ℃, the maximum flow 300M3 / H, head up to 115M, suitable for hot medium oil and hot water and other high temperature liquid. (4) high melting point pump and motor with a jacket, can greatly improve the motor heat resistance. For high melting point liquid temperature up to 250 ℃. Jacket can pass steam or a certain temperature of the liquid, to prevent the crystallization of high melting point liquid. (5) High-pressure high-pressure shielded pump shell is a high-pressure vessel, the pump can withstand high system pressure. In order to support the shield under internal high pressure, the stator coil can be used to withstand the pressure. (6) When the self-priming suction tube is not filled with liquid, the pump drains liquid by means of automatic suction to adapt to extracting liquid from the underground container. (7) Multi-level type equipped with multiple impeller, suitable for high-lift fluid delivery, the maximum lift of up to 400M. (8) Mud type is suitable for transporting liquids mixed with a large amount of mud. This keyword search: More Pumps Products Offers