This manual provides comprehensive guidance for Fisher ET valve installation, maintenance, and operation, ensuring safe and efficient use in industrial control applications.
1.1 Overview of Fisher ET Valve
The Fisher ET valve is a high-performance control valve designed for precise throttling and on-off control of liquids and gases in various industrial applications. It features a balanced trim design and cage-guided construction, ensuring smooth operation and durability. Available in globe and angle body configurations, the ET valve offers flexibility for different system requirements. Its robust design allows it to handle high process temperatures and pressures, making it suitable for demanding environments. The valve is compatible with a range of actuators and positioners, enhancing its functionality. With optional features like metal or PTFE seats, the Fisher ET valve provides reliable shutoff capabilities, meeting Class V or VI standards.
Scope of the Manual
This manual covers installation, maintenance, and parts information for Fisher ET valves, including NPS 1 through 8 and CL600 ratings, with references to separate actuator manuals.
2.1 Valve Models Covered
This section outlines the specific valve models addressed in the manual, ensuring clarity for users working with various configurations and sizes of Fisher ET valves.
2.2 Information Included in the Manual
This manual provides detailed instructions for the installation, maintenance, and operation of Fisher ET valves, ensuring safe and efficient use. It includes technical specifications, flow characteristics, and trim materials, as well as troubleshooting guides and safety precautions. The manual also covers parts ordering, maintenance schedules, and accessories like actuators and control units. Additionally, it offers guidance on handling and storing the valves, ensuring compliance with industry standards. This comprehensive resource is designed to support technicians and engineers in optimizing valve performance and addressing common issues effectively. By following the manual, users can maintain reliability and extend the lifespan of their Fisher ET valves.
Specifications and Technical Details
The Fisher ET manual details valve sizes, pressure ratings, flow characteristics, and trim materials, ensuring precise performance across various industrial control applications.
3.1 Valve Sizes and Ratings
The Fisher ET manual specifies valve sizes ranging from NPS 1 to NPS 8, with pressure ratings up to CL600. This ensures compatibility across various industrial applications, providing reliable control for liquids and gases. The valves are designed to handle diverse operating conditions, making them suitable for both throttling and on-off control. Their balanced valve plugs and cage-guided trim enhance performance and durability. The manual also covers EAT valves, sized from NPS 1 to NPS 6, ensuring comprehensive coverage for different system requirements. These specifications allow users to select the appropriate valve for their specific needs, optimizing process efficiency and safety.
3.2 Flow Characteristics
The Fisher ET valve is designed to provide precise flow control, making it ideal for throttling and on-off applications. Its balanced valve plug and cage-guided trim ensure smooth operation, minimizing wear and tear. The valve’s flow characteristics are tailored to handle a wide range of liquids and gases, delivering consistent performance under varying conditions. With options for Class V or VI shutoff, the ET valve offers excellent sealing capabilities, reducing leakage and enhancing process efficiency. The design allows for minimal pressure drop, ensuring optimal flow rates and energy savings. These features make the Fisher ET valve a reliable choice for industrial control systems requiring accurate and dependable flow regulation.
3.3 Trim Materials and Construction
The Fisher ET valve features durable trim materials designed for long-term performance. The valve plug and cage are constructed from high-quality stainless steel, ensuring resistance to corrosion and wear. Optional trims, such as Whisper Trim III and Cavitrol III, are available for noise reduction and cavitating applications. The trim design includes a balanced plug and cage-guided construction, which enhances stability and reduces vibration during operation. The use of advanced materials like CoCr-A seats and PTFE-seated options provides tight shutoff capabilities and compatibility with various process fluids. These construction features ensure the Fisher ET valve delivers reliable performance across a wide range of industrial applications, maintaining precision and durability over time.
Installation and Maintenance
This section provides detailed procedures for installing and maintaining Fisher ET valves, including guidelines for proper handling, storage, and routine maintenance to ensure optimal performance and longevity.
4.1 Installation Procedures
Proper installation of the Fisher ET valve ensures optimal performance and safety. Begin by inspecting the valve for damage or debris. Ensure the valve is correctly sized for the application and compatible with the process fluid. Mount the valve in the correct orientation, following the manufacturer’s guidelines for piping connections. Connect the actuator and positioner, ensuring all wiring matches the control system specifications. Test the valve’s operation before placing it in service. Refer to the manual for torque specifications and gasket requirements. Always follow industry standards and safety practices during installation to prevent leaks or mechanical failure. Consult the manual for specific instructions on handling special configurations or environmental conditions.
4.2 Maintenance Tips and Schedules
Regular maintenance ensures optimal performance and extends the lifespan of the Fisher ET valve. Inspect the valve and actuator monthly for wear or damage. Lubricate moving parts every 6 to 12 months, using approved lubricants. Replace worn-out components promptly. Check gaskets and packing annually and replace as needed to prevent leaks. Clean or replace the actuator air filter every 3 to 6 months to ensure proper operation. Perform a full valve overhaul every 5 years or as specified by usage. Always follow the manufacturer’s maintenance schedule and safety guidelines during servicing. Keep a record of maintenance activities for future reference and compliance with industry standards.
Accessories and Parts
Fisher ET valves are supported by a range of accessories, including actuators, control units, and replacement parts. These components enhance valve performance and control capabilities.
5.1 Actuators and Control Units
Fisher ET valves are compatible with various actuators and control units, such as the 667 actuator, designed for precise control and reliability. These components are engineered to integrate seamlessly with the valve, ensuring smooth operation in diverse industrial applications. Control units like the Fisher EAS easy-e and EHD provide advanced features for monitoring and adjusting valve performance. Actuators are available in different configurations to suit specific process requirements, including pneumatic and electric options. Proper installation and setup of these accessories are critical for optimal functionality. Always refer to the manufacturer’s instructions for detailed guidance on selecting and configuring actuators and control units for your Fisher ET valve system.
5.2 Ordering Parts and Kits
When ordering parts and kits for Fisher ET valves, ensure compatibility by referencing the valve model and size. Use genuine Fisher parts to maintain performance and safety. Kits for maintenance, such as packing systems, are available and include components like gaskets and seats. Always refer to the manual for specific part numbers and compatibility. Ordering through authorized distributors ensures authenticity and warranty coverage. For complex repairs, consider factory-assembled kits for accuracy. Keep records of orders for future reference and to track inventory efficiently. Properly stored parts prevent damage and ensure readiness for maintenance tasks.
Safety Considerations
Adhere to safety guidelines when handling Fisher ET valves to prevent accidents. Always follow proper installation and maintenance procedures to ensure safe operation and longevity.
6.1 General Safety Precautions
Always read and understand the manual before handling Fisher ET valves. Wear proper personal protective equipment (PPE) during installation and maintenance. Ensure the system is depressurized before performing any work. Follow all safety guidelines to prevent injuries and equipment damage. Properly secure the valve during handling to avoid accidental drops or leaks. Be aware of environmental conditions that may affect valve performance or safety. Adhere to local regulations and industry standards for safe operation. Regularly inspect the valve and its components for wear or damage. Use only authorized tools and replacement parts to maintain safety and reliability. Keep the work area clean and well-ventilated to minimize risks. Never bypass safety features or ignore warning signs. Ensure all personnel involved are properly trained and qualified.
6.2 Handling and Storage Guidelines
Handle Fisher ET valves with care to prevent damage. Store in a dry, clean environment, away from direct sunlight and moisture. Avoid exposure to extreme temperatures. Use protective packaging during transportation to prevent mechanical stress. Keep components in their original packaging until installation. Store spare parts in sealed containers to maintain cleanliness. Ensure the storage area is free from chemicals and contaminants. Avoid stacking valves beyond recommended limits to prevent pressure damage; Regularly inspect stored items for signs of wear or corrosion. Follow manufacturer guidelines for shelf life and storage conditions. Properly label and date stored components for easy identification and maintenance tracking. Always refer to the manual for specific handling and storage requirements for different valve models and configurations.
Troubleshooting
Identify common issues such as valve leakage or actuator malfunctions. Inspect for wear or damage, and follow repair procedures outlined in the manual for resolution.
7.1 Common Issues and Solutions
Common issues with Fisher ET valves include valve leakage, actuator malfunctions, and stem packing failures. For leakage, inspect valve seat wear and replace if necessary. Actuator issues may stem from faulty sensors or wiring; check connections and replace damaged components. Stem packing problems often arise from over-tightening or excessive wear; adjust or replace packing as needed. Regular maintenance, such as lubricating moving parts and cleaning valve trim, can prevent many of these issues. Always refer to the manual for specific repair procedures and ensure proper safety precautions are followed during troubleshooting and maintenance tasks.
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