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Outlines the manual's scope covering installation, maintenance, and parts for the Fisher 8580 valve.
Provides detailed technical specifications for the 8580 valve, including materials, dimensions, and pressure ratings.
Details the 8580 rotary valve's features, performance, and compatibility with various piping configurations.
Covers essential safety warnings and step-by-step procedures for installing the 8580 rotary valve.
Instructions for maintaining and adjusting valve packing to prevent leakage and ensure proper function.
Procedures for addressing and stopping leakage from the valve packing.
Step-by-step guide for removing and installing new packing components for the valve.
Procedure for replacing the seal ring assembly to correct downstream leakage issues.
Guide for disassembling and replacing internal valve components like the disk, shafts, or bearings.
Detailed steps for taking apart the Fisher 8580 valve for maintenance or repair.
Step-by-step instructions for reassembling the Fisher 8580 valve after maintenance or repair.
Instructions on how to mount and adjust the actuator onto the 8580 valve body.
Guidelines for ordering replacement parts for the 8580 valve, including necessary information.
Information on available retrofit and repair kits for the ENVIRO-SEAL packing system.
Comprehensive list of all components for the 8580 valve with corresponding part numbers.
Outlines the manual's scope covering installation, maintenance, and parts for the Fisher 8580 valve.
Provides detailed technical specifications for the 8580 valve, including materials, dimensions, and pressure ratings.
Details the 8580 rotary valve's features, performance, and compatibility with various piping configurations.
Covers essential safety warnings and step-by-step procedures for installing the 8580 rotary valve.
Instructions for maintaining and adjusting valve packing to prevent leakage and ensure proper function.
Procedures for addressing and stopping leakage from the valve packing.
Step-by-step guide for removing and installing new packing components for the valve.
Procedure for replacing the seal ring assembly to correct downstream leakage issues.
Guide for disassembling and replacing internal valve components like the disk, shafts, or bearings.
Detailed steps for taking apart the Fisher 8580 valve for maintenance or repair.
Step-by-step instructions for reassembling the Fisher 8580 valve after maintenance or repair.
Instructions on how to mount and adjust the actuator onto the 8580 valve body.
Guidelines for ordering replacement parts for the 8580 valve, including necessary information.
Information on available retrofit and repair kits for the ENVIRO-SEAL packing system.
Comprehensive list of all components for the 8580 valve with corresponding part numbers.
The Fisher 8580 Rotary Valve is a control valve designed for excellent throttling performance, offering precise throttling control with an approximately linear flow characteristic. It is engineered for high cycle life and rugged reliability, suitable for a wide range of industrial applications.
The 8580 rotary valve features an eccentrically-mounted disk with either a soft or metal seal, providing enhanced shutoff capabilities. The interchangeable sealing technology allows the same wafer-style valve body to accept both soft and metal seals, offering versatility in piping configurations for ASME and EN ratings. The valve body is compatible with PN 10 through PN 40, CL150, and CL300 ratings. Its face-to-face and raised-face dimensions meet EN 593, API 609, and MSS-SP68 standards.
The standard flow direction is with the seal retainer facing upstream, although reverse flow is permissible within specified pressure drop limitations. Flow direction is also indicated by an arrow cast into the valve body. The disk rotation is counterclockwise to open (when viewed from the actuator side of the valve body) through 90 degrees of disk rotation.
The 8580 valve is available in various sizes:
Pressure ratings include:
Valve body materials include:
Disk materials include:
End connections mate with raised-face flanges per EN 1092-1 (EN) and ASME B16.5 (ASME). The valve body styles are wafer (flangeless) and single flange with tapped holes, meeting MSS SP68, API 609, and EN 558 standards for face-to-face dimensions.
Shutoff capabilities are:
Material temperature capabilities vary by component and material type. For example, a 1.0619 Steel valve body with PEEK/PTFE bearing lining and PTFE seal can operate from -10 to 232°C (14 to 450°F) with PTFE or Graphite packing. CW2M and M35-2 valve bodies, while not listed in EN 12516-1 or ASME B16.34, have specific maximum allowable inlet pressures detailed in the manual.
Shaft diameters range from 12.7 mm (1/2 inch) for DN 50 (NPS 2) to 38.1 mm (1-1/2 inch) for DN 300 (NPS 12). Approximate weights for wafer-style valves range from 4.7 kg (10 pounds) to 76.6 kg (169 pounds), and for single-flange style from 6.7 kg (15 pounds) to 104.6 kg (231 pounds).
The 8580 valve is designed for ease of installation, with detailed instructions provided for proper alignment and bolting. It is crucial to ensure that adjacent pipe flanges or piping do not interfere with the disk rotation path to prevent damage. The valve's design allows for installation between adjacent pipe flanges or piping with an inside diameter equal to or greater than Schedule 80 pipe or compatible EN pipe sizes.
For continuous operation, a three-valve bypass around the control valve assembly is recommended during inspection and maintenance. The valve is typically shipped as part of a control valve assembly with an actuator mounted. If purchased separately or if the actuator has been removed, specific instructions for mounting and adjusting the actuator travel are provided.
For oxygen service applications, a bonding strap assembly can be attached to the shaft and valve body to ensure proper electrical bonding, preventing static electricity discharge. Standard packing types (graphite ribbon or carbon-filled PTFE V-ring) are conductive to electrically bond the shaft to the valve body for hazardous area service.
The manual provides comprehensive maintenance instructions for various components, including packing, seal ring assembly, disk, shafts, and bearings. Regular inspection and replacement of parts are recommended, with frequency depending on service conditions.
The manual emphasizes safety warnings, including wearing protective gear, isolating pressure, and ensuring proper grounding, especially in flammable or hazardous atmospheres. It also cautions against rotating the disk past its open or closed positions to prevent damage to the seal and disk sealing surfaces.
General| Brand | Emerson |
|---|---|
| Model | Fisher 8580 |
| Category | Control Unit |
| Language | English |
