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:
- Oil & Gas: Utilized in production platforms, refineries, and
pipelines.
- Chemical Processing: Used for reactor feed control and in batch
processes.
- Power Generation: Applied to tasks like boiler feedwater
regulation, turbine bypass operations, and fuel control.
- Water & Wastewater: Deployed for flow control and chemical dosing
purposes.
- Pharmaceuticals: Essential for precise batch operations and
clean-in-place (CIP) procedures.
- 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.
