Product Description:
Flowserve valve positioners are sophisticated electro-pneumatic devices designed to guarantee that the valve reaches the specified position directed by a process controller. These devices convert a regular input signal (e.g., 4-20 mA) into an accurate pneumatic output pressure to operate the valve effectively. By mitigating stem friction and dynamic forces, they ensure superior control precision.
The primary function of these intelligent valve positioners is to seamlessly execute the control commands from the process controller, thereby facilitating the optimal functioning of the final control element, the valve. By translating standardized input signals into precise pneumatic pressures, the positioners enable smooth valve actuation, enhancing control accuracy by overcoming mechanical hindrances and dynamic influences.
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 crucial role in various challenging applications across multiple industries:
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Oil & Gas: Used in production platforms, refineries, and pipelines.
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Chemical Processing: Integral in reactor feed control and batch processes.
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Power Generation: Employed for tasks like boiler feedwater control, turbine bypass, and fuel control.
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Water & Wastewater: Essential for flow control and chemical dosing applications.
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Pharmaceuticals: Valuable in ensuring precise batch operations and clean-in-place (CIP) procedures.
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Pulp & Paper: Facilitate chemical recovery and stock preparation processes.
Support and Services:
Product Technical Support and Services for Valve Accessories:
Our technical support team is available to assist with any questions or issues related to the installation, operation, or maintenance of our valve accessories.
We offer a range of services including troubleshooting, repair, and maintenance programs to ensure optimal performance of your valve accessories.
For more information on our technical support and services, please contact our customer service team.
Packing and Shipping:
Product Packaging:
The Valve Accessories are carefully packaged in a sturdy cardboard box to ensure safe delivery. Each accessory is individually wrapped in protective material to prevent any damage during transportation.
Shipping:
Orders for Valve Accessories are shipped via a reliable courier service. Customers can choose their preferred shipping method at checkout, with options for standard, expedited, or express delivery. Tracking information will be provided once the order has been dispatched.
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