Armstrong has introduced an expanded range of Design Envelope Permanent Magnet pumps (motors up to 60hp) that are engineered to deliver 20% lower operating costs than variable speed pumps with standard induction motors.
Simple, versatile, sophisticated, reliable. The A.Y. McDonald DuraMAC 1 1/2- to 3-HP vertical multistage variable-speed simplex booster is capable of up to 140 psi and 40 gpm. This pump changes motor speed based on demands of the system, allowing users to save energy costs over traditional constant speed booster systems, A.Y. McDonald notes.