Pressure Relief Valve / Anderson Greenwood Series 5200

Anderson Greenwood Series 200/400/500/700/800 Pilot Operated Relief Valves

Overview:

The Anderson Greenwood Series 200, 400, 500, 700, and 800 Pilot Operated Relief Valves offer reliable and high-performance overpressure protection for various industrial applications. These valves are designed for precision, durability, and ease of maintenance across a wide range of pressure and temperature conditions. Each series comes with options for both pop and modulating action to suit different system needs, ensuring maximum process efficiency and safety.

Key Features:

• Soft Seat Design: Ensures bubble-tight sealing before and after each relief cycle for dependable operation.

• Metal-to-Metal Seat Design: Suitable for high-temperature environments, offering superior performance in extreme conditions.

• Bubble-Tight Seats Near Set Pressure: Enables higher system operating pressures, improving process output and reducing product loss. The design is also resistant to vibrational and pulsating service conditions.

• Pop Action Available: Prevents main valve throttling, ideal for cryogenic or refrigerant applications where freeze-ups are a concern.

• Modulating Action Available: Reduces product loss per relief event, minimizes environmental pollution, and avoids oversizing. This action is less sensitive to inlet pressure losses than pop action.

• Field Test Connection: Allows for quick verification of set pressure without removing the valve from service.

• Balanced Design: Prevents the valve lift from being affected by back pressure, eliminating the need for fragile and expensive bellows.

• Full Lift at Set Pressure: Achieves full valve lift without requiring overpressure, enabling installation settings above the Maximum Allowable Operating Pressure (MAOP) when pop action is used.

• Replaceable Soft Seats and Seals: All seats and seals are easily replaceable, reducing downtime and eliminating the need for expensive seat lapping.

• High Gain Modulating Action (400 Series Pilots): Provides full main valve lift at 5% overpressure, significantly reducing product loss during relief events.

• API 526 Compliance: The Series 200, 400, 500, 700, and 800 pilots meet API 526 standards, ensuring compatibility and ease of upgrades without needing piping modifications.

Series Breakdown:

• Series 200: Designed for general applications with soft seat options and available in a variety of sizes and pressure ranges.

• Series 400: Offers high gain modulating action, reducing product loss and improving efficiency during relief events.

• Series 500: Features advanced performance capabilities with enhanced durability for complex industrial systems.

• Series 700: Provides increased capacity and pressure settings for larger, high-demand applications.

• Series 800: Designed for the most demanding industrial and chemical applications, offering extreme performance and reliability.

Applications:

• Gas and Vapor Services

• Liquefied Gases

• Cryogenic Applications

• Oxygen Service

• High-Pressure Compressors

• Marine Gas Carriers

• Industrial Manufacturing

• Power Generation

Standards Compliance:

• ASME Section VIII

• API 526

• ISO

• EN 4126

These pilot-operated relief valves are ideal for industries requiring reliable pressure relief to ensure safe and efficient operations. Each series offers flexibility in configuration and is designed to withstand harsh operating environments while ensuring minimal maintenance and maximum system protection.