How To Repair And Maintain High-temperature Stainless Steel Submersible Pumps
Jan 26, 2026
The high-temperature stainless steel submersible pump eliminates the mechanical seal commonly used in other submersible pumps and selects a unique structure impeller, making the pump energy-saving, leak free, and long-lasting, thus widely used in industries such as petroleum, chemical, pharmaceutical, papermaking, metallurgy, and sewage treatment.
Characteristics of High Temperature Stainless Steel Submerged Pump Products
1. The pump is a vertical submersible pump with a beautiful appearance, which can be directly installed on the storage container of the conveyed medium without additional land occupation, thereby reducing infrastructure investment.
2. The cancellation of mechanical seals has solved the problem of frequent maintenance for other submersible pumps due to the easy wear and tear of mechanical seals, saving pump operating costs and improving work efficiency.
3. Adopting a unique centrifugal double balanced impeller for conveying clean media without solid particles, with extremely low vibration noise and high efficiency; Adopting an open double balanced impeller, it is used to transport liquids with solid particles and short fibers that are not clean, running smoothly and without blockage.
Disassembly and assembly of high-temperature stainless steel submersible pump
1. If replacing or inspecting the impeller, the outlet valve can be closed, the flange connection bolts and bottom plate connection bolts can be removed, and the pump can be lifted out of the container with a lifting tool.
2. Place the bottom plate vertically on the fixed bracket, remove all bolts from the pump body, take out the pump cover and impeller nut, and lightly tap the pump body with a double hammer to remove the impeller.
3. Adopting a unique centrifugal double balanced impeller for conveying clean media without solid particles, with extremely low vibration noise and high efficiency; Adopting an open double balanced impeller, it is used to transport liquids with solid particles and short fibers that are not clean, running smoothly and without blockage.
Installation, use, and maintenance of high-temperature stainless steel submersible pumps
1. After assembling the pump, rotate the coupling to see if it rotates flexibly. Check if there is any metal friction sound and if the screws of each component are tightened.
2. Check the concentricity between the pump shaft and the motor shaft. The difference between the outer circles of the upper and lower couplings should not exceed 0.1mm, and the gap between the coupling end faces should be maintained at 1-2.5mm.
3. The distance between the suction port of the pump and the bottom of the container is 2-3 times the suction diameter. The distance between the pump body and the wall should be greater than 2.5 times the diameter.
4. The outlet pipeline of the pump should be supported by additional brackets, and its weight is not allowed to be supported on the pump.
5. Check the rotation direction of the motor to ensure that the pump rotates in the indicated direction.
6. Close the gate valve on the outlet pipeline and connect the cooling water pipe.
7. Start the motor, slowly open the idle valve of the outlet pipe to the desired position, and put it into normal operation.
8. Regularly check the condition of the pump and motor The temperature rise of the bearing should not exceed 75 ℃, and sufficient butter should be added inside the bearing box.