A Waterjet Pneumatic Control Valve, Normally Closed, is a specific type of valve used in waterjet systems to control the flow of pneumatic (air) pressure.

Key features and functions include:

1. Operation: The "normally closed" configuration indicates that the valve remains closed when no external force or air pressure is applied to it. It opens only when air pressure is supplied to actuate the valve.

2. Control of Pneumatic Pressure: This valve regulates the flow of compressed air or pneumatic pressure within the waterjet system. It's often utilized for controlling the activation or deactivation of certain components requiring air pressure to function.

3. Safety and Control: In waterjet systems, these valves are essential for maintaining safety measures and controlling various pneumatic-driven components, ensuring they operate in sync with the cutting process.

4. Compatibility: Designed to integrate with specific waterjet systems and their pneumatic control setups, ensuring proper functionality and compatibility.

5. Applications: Used in various parts of the waterjet system where pneumatic control is required, such as controlling clamping mechanisms, activating abrasive feed systems, or managing other pneumatic-driven functions.

The "normally closed" feature ensures that in the absence of external control or air pressure, the valve remains closed, which can be a safety feature in certain waterjet system configurations. When the pneumatic pressure is applied, it opens to allow the controlled flow of air, regulating the designated components or functions within the system.