Double action, pneumatic positioner Model VPP02/VPP03

Azbil VPP02/03 Double-Acting Pneumatic Valve Positioner: Robust & Reliable Industrial Flow Control

The Azbil VPP02 and VPP03 are a series of highly reliable, double-acting pneumatic valve positioners engineered for precise and durable flow control in demanding industrial environments. Operating on a proven force-balance servo mechanism, they accurately translate a controller’s pneumatic signal into the correct air pressure output to swiftly and correctly position a control valve’s opening.

Purchase details

These positioners are built for versatility and longevity, with a simple, robust construction featuring corrosion-resistant materials and a protective coating. This makes them an excellent choice for applications where stability and minimal maintenance are critical, even in harsh conditions.

Key Features & Benefits

Wide Supply Pressure Range: The series covers a broad spectrum of operational needs. The VPP02 model is designed for standard supply pressures (200–340 kPa), while the VPP03 is built for higher pressure applications (350–690 kPa). This ensures you have the right fit for your system’s specifications.
Simple Maintenance & High Flexibility: Their sturdy design allows for easy calibration and repair. A key feature is the ability to reverse the actuator’s action (from direct to reverse acting or vice versa) without replacing any parts—simply by modifying the air piping and inverting the cam.
Universal Installation: The mounting position of the positioner is independent of the actuator’s action (direct or reverse), offering greater flexibility during installation and system design.
Built for Harsh Environments: Components are made from corrosion-resistant materials and housed in a sturdy aluminum alloy casing with protective acrylic baking paint, ensuring reliable performance in challenging industrial settings.
Configurable Flow Characteristics: By selecting different cams, the valve’s output can be easily set to Linear, Equal Percentage, or Quick Opening characteristics to match specific process requirements.

Technical Specifications

The following table summarizes the core technical data for the Azbil VPP02/03 series. For comprehensive official documentation, you can download the product specification sheet (SS4-8310-0300) directly from the manufacturer’s website.

Attribute	Specification
Model Series	Double-Acting Pneumatic Valve Positioner (VPP02 / VPP03)
Core Function	Force-balance servo mechanism for precise valve positioning
Input Signal	20–100 kPa (standard); Split ranges: 20–60 kPa / 60–100 kPa
Output Characteristics	Linear, Equal Percentage, Quick Opening (selectable via cam)
Supply Air Pressure	VPP02: 200–340 kPa • VPP03: 350–690 kPa
Air Consumption	Approx. 20 Nl/min (at 490 kPa supply)
Maximum Air Flow Capacity	250 Nl/min (at 490 kPa supply)
Air Connection	Rc1/4 internal thread
Ambient Temperature Range	-30°C to +80°C
Performance (Accuracy)	Better than ±1.0% of full scale
Performance (Dead Band)	Less than 0.2% of full scale
Stroke Adjustment Range	14–100 mm
Housing Material	Aluminum Alloy
Weight	Approx. 3.5 kg

Typical Applications

The Azbil VPP02/03 positioners are suited for precise and reliable control of double-acting actuators across a wide range of industries, including:

Chemical and Petrochemical Processing
Oil & Gas Refining and Pipeline Control
Power Generation (Thermal, Nuclear)
Water and Wastewater Treatment
General Industrial Process Automation

If you have any questions about the specifications, model selection (VPP02 vs. VPP03), or suitability for your specific application, please do not hesitate to contact the sales team at Kateteco. We are here to provide expert support and help you find the optimal positioning solution for your control valves.

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KateTeco (Tianjin) Technology Co., Ltd. serves as an outstanding partner in the field of industrial fluid automation, specializing in the introduction and integration of high-end valves and instruments. We are committed to providing customers with safe, reliable, and intelligent system solutions. By leveraging global leading product resources and supported by systematic professional training and on-site technical assistance from Emerson’s experienced engineers, we ensure that customers can respond promptly and accurately to technical challenges.

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