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:

• Oil & Gas: Such as production platforms, refineries, and pipelines.
• Chemical Processing: Including reactor feed control and batch processes.
• Power Generation: Where they are used for boiler feedwater, turbine bypass, and fuel control.
• Water & Wastewater: For applications like flow control and chemical dosing.
• Pharmaceuticals: Enabling precise batch operations and clean-in-place (CIP) procedures.
• 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