Designed for electrical submersible pumps, the Pleuger PMM6 submersible electric motor from Flowserve Corp. uses an efficient permanent magnet synchronous motor to boost power output at full and partial loads. Testing has shown that thermal losses are reduced, extending motor life. When operated in conjunction with a variable-frequency drive, the motor allows the pump to run at the best efficiency point under variable-flow conditions. It is available in a 6-inch motor size with power output of 7 to 60 hp. 410/756-2602; www.flowserve.com.