1. High Reliability Through an Isolating Structure

In harsh plant environments, sensitive electronic components inside a smart valve positioner are vulnerable to atmospheric humidity, salt air, and corrosive gases. Additionally, pneumatic air supply lines can carry trace amounts of water or oil mist caused by upstream filter or compressor degradation.

To protect critical internal components, Azbil’s smart valve positioner uses an isolating structure that physically separates air circuit and electrical circuit:

• Isolating Electronics : Sensitive electrical components (circuit boards, LCD screen, travel sensor) are housed inside an explosion-proof enclosure. This keeps out moisture, dust, and corrosive air.
• Separating Air Circuits : The pneumatic air circuit sits outside the electronic chamber. If moisture or oil mist enters the supply air, it cannot reach or damage the internal electronics.
• Safe Maintenance : Because air circuits are located outside the explosion-proof chamber, technicians can inspect and clean components (like the nozzle flapper) directly in the field without compromising explosion protection.

2. Remote-Type Positioners : Solving Severe Vibration & High-Heat Challenges

Heavy vibration from piping, fluid flow, or water hammer can quickly wear out traditional mechanical units. High ambient temperatures or hard-to-reach locations also make regular maintenance difficult and dangerous.

Our remote-type smart valve positioner solves these challenges by physically separating the positioner's main unit from the valve stem:

• Mounting the Sensor on the Valve : Only the travel sensor adopted non-contact magnetoresistive(MR) sensor is mounted on the valve stem.
• Placing the Main Unit Away from the valve : The main body—containing the electronics and pneumatic circuits—is mounted separately in a safe, cool, and accessible location using a connecting cable.
• Non-Contact MR Sensor Technology : Using a non-contact MR sensor means fewer moving or sliding parts, greatly reducing wear from constant movement.
• 5x Better Vibration Resistance : The remote smart valve positioner design withstands vibration frequencies up to 2000 Hz and acceleration up to 10 G (9.8 m/s²)—providing more than 5 times the vibration resistance of our conventional positioners.

3. Azbil’s Smart Valve Positioner Reliability & Benefits

Feature Category	What It Does	Why It Helps Your Plant
Isolating Structure	Electronics housed in an explosion-proof enclosure Air circuit physically separated	Protects Against Dirty Air & Harsh Environments Oil or water in the supply air cannot damage sensitive electronics. It also allows safe maintenance on air parts without opening the electrical cover.
Remote Type	Mounts only the travel sensor on the valve. Places the main positioner unit in a safe, easy-to-reach area. Uses a non-contact sensor with no moving parts to wear out.	Handles High Heat & Extreme Vibration Withstands violent shaking (up to 10 G) and extreme temperatures. Protects workers by letting them perform maintenance safely at ground level.

Frequently Asked Questions (FAQ)

Upgrade to a Reliable Smart Valve Positioner

Severe vibration, high temperatures, and harsh air quality do not have to disrupt your process. By choosing a smart valve positioner built with isolating structures and remote-mounting options, you can protect your equipment, improve plant safety, and keep maintenance simple.