The ME4840 and ME4940 spring return modulating actuator line has been expanded to include a wider input signal range. They are now onboard selectable with aJumper J3 selectable range from: 0-10Vdc, 2-10Vdc, 0-5Vdc, 5-10Vdc, and 4-20mA. Both spring-open or spring-closed models are available. The actuators easily install without tools on wide range of the company’s valve bodies from ½ to 1 inch for two- way or three-way applications. These spring return (open or closed) actuators are designed to work with the manufacturer’s zone valve line for the control of hot and chilled water and low pressure steam.
Spartan Peripheral Devices