Posted on Wednesday, March 27, 2019 by
Dave Nelson
Flow Sleeves for Submersible Well Pumps When is a flow sleeve required? Submersible well pump motors are designed to operate with a cooling flow of water over and around the full length of the motor. In water up to 86 degrees Fahrenheit, a flow of 0.25 feet/second for 4” motors rated 3 horsepower and higher, and 0.5 feet/second for 6” and 8” motors is required for proper cooling. If the minimum flow is not maintained, the motor can overheat. In these cases, flow sleeves, also known as flow...