Pressure Retaining Valve is a type of valve that is designed to hold back or retain pressure within a system. It is commonly used in pipelines, tanks, and other pressure vessels to prevent overpressure and maintain a safe operating pressure. The hydraulic Sustaining Valve operates by opening and closing in response to changes in pressure within the system. When the pressure reaches a predetermined level, the valve opens to release excess pressure, and when the pressure drops below the set point, the valve closes to prevent further pressure loss. Pressure retaining valves are critical components in many industrial applications, including oil and gas, chemical processing, and power generation. They are typically made from high-strength materials such as stainless steel or brass to withstand the high pressures and corrosive environments found in these industries.
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