Intrinsically Safe Explosion Proof Control Valve Positioner Single Acting Failsafe C45DY-RSA

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

A valve positioner is the interpreter between the control valve assembly and the control system. It translates output signals from the control system and adjusts the air to the actuator, which moves the valve to the position requested by the control system (Figure 1). The positioner may also take position feedback from the valve stem/shaft and send that information back to the control system.

Valve positioners can help to overcome high valve friction, as well as reduce deadband (during which there is no valve movement) and hysteresis. The higher the friction, the more deadband associated with the control valve. Mechanical feedback from the valve assembly to the positioner enables the positioner to vary its output to overcome the friction and provide accurate control. For example, if the positioner receives a 50% input signal, it will provide whatever air output is required to move the valve to the midpoint of its range of travel. A positioner must be used with a piston actuator (with or without springs) to provide throttling control.

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

Diaphragm control valve, single-acting ball valve, single-acting butterfly 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.

Performance indicators

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

Wuhan TORLEO Intelligent Co., Ltd. (stock code 102618) is an award-winning high-tech company that focuses on high-end intelligent control of industrial valves, and provides one-stop solutions for intelligent valve positioners based on nozzle baffle technology for petroleum, chemical,  etallurgical, electricity, paper manufacturing, environmental protection, pharmaceutical and other industries as well as valve manufacturers.

Embracing the global R&D vision of "Research by TORLEO, World-leading Innovation", our headquarter is located in China Optics Valley, the talent house of Wuhan, and is responsible for product development and market operations; the oversea office is located in Toronto, Canada, responsible for algorithm and industrial AI design.

Adhering to the values of "Focused, Truth-seeking, and Reliable", TORLEO built for ten years with professional thics,  profound  knowledges,  broad visions, and we are forging on with the mission statement – “Domestic Substitution, Industrial Powerhouse”. Our ingeniously created intelligent valve positioner and its TORLEO brand has become the domestic brand recommended and promoted by CCTV  “Credit  China”  program, and was honored with the 2020 National Commercial Quality Award as well as the title of Wuhan Technology Innova-
tion Product.

Strategic positioning: domestically, we replace international products and set new industry benchmark with TORLEO’s intelligent valve  positioner; internationally, we export and promote the Chinese brand along the One Belt One Road. In the future, we aim to integrate IoT to various key nodes within industrial pipeline management process, such as smart valve control, pipeline flow pressure measurement and safety monitoring, to lead and empower industrial safety management with big data and cloud technology, and to establish a data center for Chinese industrial pipeline management.