Butterfly Valve Double Acting Positioner Stainless Steel Dust Explosion Proof ExtD C45DY-RDA

Smart valve positioner, dust explosion-proof ExtD, angular stroke, double acting, failsafe, stainless steel corrosion-resistant​

Installation of valve positioner
An essential principle of positioner installation is that the positioner, stem, and feedback rod should form a closed-loop negative feedback.

After the positioner is installed, the stem and feedback rod are not connected, and the feedback rod is rotated by hand. If the stem action direction is opposite to the feedback rod action direction, the closed-loop negative feedback is formed. The feedback rod and stem are fixed to ensure that the positioner works in the best linear segment. Locator installation is not correct, will also increase its linear deviation.

Performance indicators

Product application field

TORLEO brand TOP-5879F1 series smart valve positioner are used in conjunction with pneumatic control valves, and are widely used in metallurgy, power generation, paper-making, environmental protection and other industries where process control is required.

Typical valve application

Double-acting ball valve, double-acting butterfly valve, V-shaped ball valve, yellow valve, damper valve

Technical features of the product

• Nozzle baffle + symmetrical membrane valve structure, strong ability to resist dust, moisture and oil;

• Built-in keyboard and large LCD screen, the positioner can be debugged without a handheld operator;

• HART communication, modular design, convenient for users to choose and use;

• Valve position output, modular design, convenient for users to choose and use;

• Configure linear, quick opening, equal percentage and user-defined flow characteristics;

• One-key auto-tuning operation to meet the needs of users for quick installation and fool-like debugging;

• PID compound control algorithm can achieve 0.1-0.3% control accuracy.

 Selection guide for TOP-5879F1 C series smart valve positioner