Product Description:
Flowserve valve positioners are sophisticated electro-pneumatic devices designed to ensure that the valve, serving as the final control element, reaches the intended position specified by a process controller. These positioners effectively convert a conventional input signal (such as 4-20 mA) into an accurate pneumatic output pressure to operate the valve. By overcoming stem friction and dynamic forces, they enhance control accuracy significantly.
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The primary function of Flowserve valve positioners is to bridge the communication gap between the control system and the valve. By receiving signals from the controller, they optimize the output pressure to precisely position the valve. This enables seamless control and response, addressing stem friction and dynamic forces that may affect the valve's performance.
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:
Device Specifications:
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 are employed across a diverse range of challenging scenarios. These applications include:
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Oil & Gas: Utilized in production platforms, refineries, and pipelines.
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Chemical Processing: Used for reactor feed control and in batch processes.
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Power Generation: Applied to tasks like boiler feedwater regulation, turbine bypass operations, and fuel control.
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Water & Wastewater: Deployed for flow control and chemical dosing purposes.
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Pharmaceuticals: Essential for precise batch operations and clean-in-place (CIP) procedures.
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Pulp & Paper: Serving roles in chemical recovery and stock preparation processes.
Support and Services:
Our Product Technical Support and Services for Valve Accessories include:
- Expert assistance with product installation and setup
- Troubleshooting guidance for any issues that may arise
- Product maintenance tips and best practices
- Warranty information and support
- Product training and resources for customers and partners
Packing and Shipping:
This Valve Accessories product comes in a sturdy cardboard box with foam inserts for secure packaging. Each accessory is individually wrapped to prevent any damage during shipping.
For shipping, we use reliable carriers to ensure your order reaches you safely and on time. The package will be labeled with your address and tracking information will be provided for easy monitoring of the delivery status.
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