![]() When the valve is "energized" it opens allowing water to flow at a specified flow rate say 1oz per second (see valve sizing). The valve is "normally closed" while not in use. As an example, a standard refrigerator water dispenser would require a two-way normally closed solenoid valve. This minimizes energy draw to operate the control of the fluid or gas. When designing a direct-acting solenoid valve as part of a fluid control system, the process begins with the flow in a de-energized mode. Normally Close (NC) or Normally Open (NO) Most equipment requires either a 12V or 24V (volt) DC circuit.Understanding the ANSI symbols and manufacturer's flow diagrams ensures the proper valve is specified. These electrically operated control valves are typically employed in a two-way or three-way operation, and are specified as normally closed or normally open in a de-energized state. Solenoid valves are widely used to control the flow of either a gas or liquid in many types of components or equipment. Valve ANSI or ISO Schematic Symbols and Flow Diagrams High Flow Gas Solenoid Valves for high BTU Applications.Gas Fire Bowls with Large Burner and Integrated Pilot Valve.Custom Solenoid Valves Improve Medical Device Performance.Manifold Simplifies Delivery of Friction Material.Solenoid Valve Simulates Live Fire of Automatic Machine Gun.Plastic Valve Body for Wattmizer Series.VALVES AND SYSTEMS Specialty Solenoid Valves ![]()
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