ASCO Solenoid Spool Valves and Neles Valmet ND9000 Series Intelligent Digital Valve Controller Positioners

Valmet's Neles ND9000 is a microcontroller-based, loop-powered intelligent valve controller optimized for precise positioning in pneumatic actuators. It integrates contactless sensors for position, pressure, and spool measurements, enabling advanced control algorithms. Supporting HART 6/7, FOUNDATION Fieldbus (ITK 6.1.2 certified), and Profibus PA (PNO certified), it ensures interoperability and backup LAS functionality in fieldbus setups. Built for reliability in extreme conditions, it features modular design for easy upgrades and predictive maintenance tools.

• Diagnostic Capabilities: Online, performance, and communication diagnostics; collects trends, histograms, and key figures during operation.
• Control Flexibility: Automatic/manual calibration, 1-point calibration for quick mounting; configurable for aggressive to stable control.
• Safety Compliance: SIL 2 (TÜV certified); fail-safe position options, open/close detection via soft or mechanical switches.
• Environmental Robustness: IP66 enclosure, vibration tolerance <1% up to 2000 Hz; stainless steel options for corrosive environments.
• Communication Integration: Firmware downloads, input selector/output splitter blocks in FF; polarity and overcurrent protection.
• Energy Efficiency: Low air consumption (<0.6 Nm³/h steady state for spool 2/3); supports low-power control systems.
• Mounting Versatility: Flush or remote mounting; extensive kits for Neles and third-party actuators.

Suited for demanding process industries requiring high reliability, such as petrochemicals, power generation, and mining. Used in throttling and on/off services, safety loops (SIL 3 with qualified interfaces), and fieldbus-based distributed control for flow, pressure, and level regulation.

• What supply pressure is required? 1.4–8 bar; effect on position <0.1% with 10% variation.
• How to configure for fieldbus? Replace HART board; use DTM/EDD for setup; supports firmware downloads.
• What limit switches are available? Inductive (P+F NJ2-12GK-SN), mechanical (Omron D2VW-5), bus-powered options.
• Can it handle arctic conditions? Yes, with arctic option down to -53°C; not compatible with all switches.
• How does position feedback work? Optional 4–20 mA transmitter with galvanic isolation; complies with NE43.

Phone/WeChat/WhatsApp:

+8613916209596

Email: svetama@gbsxj.com

• Neles ND7000: Basic intelligent valve controller.
• Neles VG9000: High-performance globe valves.
• Valmet DTM Software: For advanced diagnostics and configuration.
• Neles B1CU Actuators: Compatible rotary actuators.
• FOUNDATION Fieldbus Devices: Complementary network components.