Product Description:
Flowserve Valve Positioners:
These devices offered by Flowserve are known for their intelligence and electro-pneumatic capabilities. They play a crucial role in ensuring that the final control element, which is a valve in this context, reaches the intended position as directed by a process controller.
Functionality:
The valve positioners are designed to convert a standard input signal, such as a 4-20 mA signal, into an accurate pneumatic output pressure. This pressure is then utilized to activate the valve, effectively overcoming stem friction and dynamic forces in order to achieve exceptional control precision.
Features:
High Accuracy & Repeatability:
Ensures precise valve positioning (< ±0.5%) for improved process control.
Advanced Digital Communication:
Supports HART, Foundation Fieldbus, and Profibus-PA protocols for seamless integration into digital control systems.
Robust Construction:
Features rugged housing (e.g., NEMA 4X / IP66) and corrosion-resistant materials for harsh environments.
Intuitive Diagnostics:
Built-in monitoring of travel, pressure, and supply air provides predictive maintenance data and reduces downtime.
One-Button Auto-Calibration:
Simplifies setup and commissioning, reducing human error and time.
Selectable Valve Characterization:
Allows for in-field selection of flow characteristics (Linear, Equal %, Quick Open).
Hazardous Area Certified:
Approved for use in explosive atmospheres (ATEX, IECEx, FM).
Low Air Consumption:
Optimizes plant energy usage.
Technical Parameters:
Input Signal: 4-20 mA, HART; Digital (Foundation Fieldbus, Profibus-PA)
Supply Pressure: 1.4 - 7 bar (20 - 100 psi)
Output Pressure: 0 - 100% of supply pressure
Accuracy: < ±0.5% of span
Enclosure Rating: IP66/67, NEMA 4X
Ambient Temp. Range: -40°C to +80°C (-40°F to +176°F)
Mounting: Direct to ISO 5211, NAMUR standard
Certifications: ATEX, IECEx, FM, SIL 2/3 (model dependent)
Applications:
Flowserve positioners play a critical role in various challenging applications across different industries. They are commonly utilized in:
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Oil & Gas: Such as production platforms, refineries, and pipelines.
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Chemical Processing: Including reactor feed control and batch processes.
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Power Generation: Where they are used for boiler feedwater, turbine bypass, and fuel control.
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Water & Wastewater: For applications like flow control and chemical dosing.
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Pharmaceuticals: Enabling precise batch operations and clean-in-place (CIP) procedures.
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Pulp & Paper: Supporting chemical recovery and stock preparation processes.
Support and Services:
The Product Technical Support and Services for the Valve Accessories product include:
- Installation assistance
- Troubleshooting guidance
- Maintenance recommendations
- Product training and demonstrations
- Warranty information
Packing and Shipping:
Product Name: Valve Accessories
Description: High-quality valve accessories designed to enhance the performance and durability of your valves.
Package Includes:
- 1 set of valve stems
- 1 pack of valve seals
- 1 tube of valve lubricant
Shipping Information:
- Shipping Method: Standard Shipping
- Estimated Delivery: 5-7 business days
- Shipping Cost: $5.99
