Xiangjing (Shanghai) M&E Technology Co., Ltd
| Type | Control,pneumatic |
| Power | Pneumatic,electric |
| Payment Terms | T/T |
| Material | Aluminum Alloy |
| Delivery Time | 5~8 weeks |
| Application | General,industrial |
| Standard | DIN,ANSI,BS,ASTM |
| Supply Ability | 2,750 units per year |
| Standard or nonstandard | Standard |
| Packaging Details | carton or wooden crate, 30 × 30 × 30 cm |
| Structure | Control,Angle stroke |
| Model Number | ND7000 |
| Brand Name | Neles |
View Detail Information
Explore similar products
Foxboro SRD991 Series Smart Digital Valve Positioner HART 4-20mA for Control
Advanced Self-Diagnostics and IP66 Ingress Protection Control Valve Positioner
Original Masoneilan SVI2 Smart Valve Positioner China Pressure Balanced Single
Pressure Reducing Valve KOSO PRF300 PRF400 And EPA 801 Valve Positioner With
Product Specification
| Type | Control,pneumatic | Power | Pneumatic,electric |
| Payment Terms | T/T | Material | Aluminum Alloy |
| Delivery Time | 5~8 weeks | Application | General,industrial |
| Standard | DIN,ANSI,BS,ASTM | Supply Ability | 2,750 units per year |
| Standard or nonstandard | Standard | Packaging Details | carton or wooden crate, 30 × 30 × 30 cm |
| Structure | Control,Angle stroke | Model Number | ND7000 |
| Brand Name | Neles | ||
| High Light | HART 7 Valve Controller ，SIL 2 Certified Intelligent Valve Positioner ，Self-diagnostics Digital Valve Positioner | ||
Product Overview
The Neles ND7000 is a microcontroller-based intelligent valve controller that delivers accurate and reliable pneumatic actuator control. It is powered by a 4-20mA loop and continuously compares the input command signal with the actual valve position, adjusting the actuator accordingly. The ND7000 works with virtually every control valve actuator and in all industry areas.
The unit uses contactless valve position measurement, eliminating mechanical wear in the feedback path. The same device handles rotary and linear valves, plus single-acting and double-acting actuators. Commissioning is simple with the Local User Interface (LUI) or remote DTM/EDD configuration. A 1-point calibration feature allows installation on in-service valves without process interruption.
The ND7000 is SIL 2 certified by TÜV according to IEC 61508. It features self-diagnostics including deviation trend, counters, and extended off-line tests. The device is built for harsh environmental conditions with a rugged modular design, excellent temperature characteristics, and vibration and impact tolerance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Neles |
| Communication Protocol | HART |
| Input Signal | 4-20mA |
| Data Interface | Wired |
| Diagnostics | Self-diagnostics; Deviation Trend; Counters; Extended Off-line Tests |
| Supply Pressure | 1.4~8 bar (20~115 psig) |
| Mounting Type | Rotary and Linear valves; Single and Double-acting actuators |
| Operating Temperature | -40°C~+85°C, standard; -53°C~+85°C, arctic version |
| Enclosure Protection | IP66 / NEMA 4X |
| Housing Material | Anodised aluminum alloy |
| Air Connections | G 1/4 |
| Certifications | SIL 2 (TÜV, IEC 61508); ATEX, IECEx, INMETRO |
| Communication Software | FDT/DTM; EDD |
Application Industry
The Neles ND7000 is used in oil and gas, chemical processing, power generation, mining, and general industrial automation. The device can be integrated with all major DCS systems and supports mounting kits for any third-party actuators. It is fully compatible with different manufacturers' systems and equipment.
Common Problems
A change in valve position setpoint will not affect actuator position: Check supply pressure (may be too low), spool valve sticking, incorrect configuration parameters, actuator or valve jammed, signal wires incorrectly connected, or calibration not carried out.
Actuator goes to end position with small input signal change: Tubes between controller and actuator are incorrect. Check parameter settings PFA and ROT.
Inaccurate positioning: Spool valve dirty, too high actuator load, supply pressure too low, spool or pressure sensors defective, or actuator leakage.
Overshooting or positioning too slow: Change PERF value, spool valve dirty, supply air tube too small, or supply air filter dirty.
Replacement Models
The Neles ND7000 is a mature intelligent valve controller platform. The ND9000 series is the next-generation upgrade with enhanced diagnostics and fieldbus options. The ND7000 serves as a direct replacement for legacy NE700/NP700 positioners. For cross-vendor alternatives, verify actuator mounting, travel range, and communication protocol before ordering.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2015
Total Annual:
30,000,000-50,000,000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr... Xiangjing (Shanghai) - Leading Distributor of Pneumatic and Electric Control Valves Established in Shanghai, China, Xiangjing(Shanghai) Mechanical and Electrical Tech Co.,Ltd has been a trusted distributor of high-quality pneumatic and electric control valves for many years. With extensive industr...
Get in touch with us
Leave a Message, we will call you back quickly!