The valve is built to be maintenance-free with a rare-earth permanent magnet for normally closed operation and an electromagnet for controlling shot flow rates. When no power is applied, the permanent magnet stops all flow. With power applied, the magnetic field is neutralized and shot is allowed to flow through the valve. If the power is interrupted, the permanent magnet holds the shot securely in the valve.

ELECTRONICS INC. (EI) introduced a new design to their MagnaValve series of media valve for shotblasting: The WM 3000-24 MagnaValve. The WM 3000-24 will throw 3,000 lb of steel shot per minute in wheel blast machines with wheels up to 125 hp. EI developed the valve in response to demand in Europe and China where the valves are used in wheel blast machines to clean forged or cast components.

The MagnaValve is a magnetic valve that regulates the flow of steel shot. Its built-in sensor measures flow rate and, when used with EI's FC-24 controller, the wheel motor amperage can be regulated to any value from no-load to full-motor load. The valve reduces media usage, energy costs, machine downtime, and wear and tear on equipment.

Its maintenance-free construction includes a rare-earth permanent magnet for normally closed operation and an electromagnet for controlling shot flow rates. When no power is applied to the MagnaValve, the permanent magnet stops all flow. With power applied, the magnetic field is neutralized and shot is allowed to flow through the valve. If the power is interrupted for any reason, the permanent magnet in the valve securely holds the shot.

The valve is available in 24 Vac, but EI also manufactures 120 Vac MagnaValves. Valves are available with the capacity to throw 700 – 3,000 lbs/min for 15 to 125 Hp motors.

EI manufactures quality- and process-control products for blast cleaning and shot peening, including media valves, controllers, gages, and strips. Visit www.electronics-inc.com