Shanwu Valve Positioner AVP80-H-3X-XX
The SVP3000 Alphaplus series smart valve positioner is a microprocessor-based electro-pneumatic valve positioner. It can receive DC signals from control devices and control the opening of the valve.
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Shanwu Locator AVP
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Detailed introduction
Overview
The Shanwu AVP80 is a smart electro-pneumatic valve positioner, part of the SVP3000 Alphaplus series, designed to control valve opening based on a 4–20 mA DC input signal. It’s a microprocessor-based unit that supports both single-acting and double-acting actuators, especially linear types.
Here are the key features of the Shanwu AVP80 Valve Positioner:
Electro-pneumatic control: Converts 4–20 mA input signal into pneumatic output to position the control valve precisely.
Microprocessor-based design: Enhances control accuracy and allows for smart functions like auto-calibration.
One-touch automatic setup: No external tools required—just press a button to run automatic configuration.
Wide operating range:
Ambient temperature: –40 °C to +80 °C
Air supply pressure: 140–700 kPa
Flexible compatibility: Suits both single and double-acting actuators, primarily for linear motion applications.
Fail-safe function: Includes a forced full-close option when the signal drops below 0.5%.
Built-in lightning protection: Withstands surges up to 12 kV and 1000 A, boosting durability in outdoor or hazardous environments.
No fieldbus or digital communication
Specification
| Parameter | Specification |
|---|---|
| Input Signal | 4–20 mA DC |
| Power Supply | Supplied via signal loop (no separate power needed) |
| Actuator Types | Single-acting and double-acting (primarily linear) |
| Air Supply Pressure | 140–700 kPa |
| Ambient Temperature Range | –40 °C to +80 °C |
| Vibration Resistance | Up to 2 G |
| Setup | One-touch automatic configuration |
| Fail-Safe Function | Valve fully closes if signal < 0.5% |
| Lightning Protection | Surge voltage up to 12 kV; current up to 1000 A |
| Communication | None (no HART, Fieldbus, or diagnostics) |
| Enclosure Protection | Typically IP66 (please verify exact model rating) |
Frequently Asked Questions (FAQ) section for the Shanwu AVP80 Valve Positioner, tailored for quick reference and practical use:
🔧 Installation & Setup
Q: Does the AVP80 require special tools for setup?
A: No. It features a one-touch automatic setup—just press the configuration button and it calibrates itself.
Q: Can it be used with both single and double-acting actuators?
A: Yes, it supports both types, though it’s primarily optimized for linear motion actuators.
⚙️ Operation & Performance
Q: What input signal does it accept?
A: A standard 4–20 mA DC signal.
Q: What happens if the input signal drops below 0.5%?
A: The valve will automatically move to a fully closed position as a fail-safe.
Q: Does it support digital communication like HART or Fieldbus?
A: No, the AVP80 is a basic model without communication or diagnostic functions.
🌡️ Environment & Durability
Q: What’s the operating temperature range?
A: –40 °C to +80 °C, making it suitable for harsh environments.
Q: Is it protected against lightning or surges?
A: Yes, it includes built-in protection for up to 12 kV surge voltage and 1000 A current.
🛠️ Maintenance
Q: How often should the filter or nozzle be cleaned?
A: Periodically, depending on air quality. Use dry, oil-free air and avoid damaging the nozzle during cleaning.
Q: Can I switch between manual and automatic modes?
A: Yes, via the A/M switch. Manual mode allows direct air control for maintenance or testing.
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