Rotork Ytc 4~20mA Yt-2500/ 2550 / 2501 Smart Valve Positioner
Product Description
YT-2500 L/R Electro-Pneumatic Positioner
YT-2500 Smart Valve Positioner accurately controls valve stroke, according to input signal of 4~20mA being delivered from controller.
The Rotork YT-2500 is a smart valve positioner. It receives a 4 - 20mA input signal from the controller and accurately controls the valve stroke. With a built-in microprocessor, it can optimize positioner performance and offer functions like auto calibration, PID control, and HART protocol communication. It has a fail freeze function, which keeps the valve at its current stroke position when the input signal fails without additional equipment. There is an LCD display for users to monitor the positioner's status. It can operate normally even when the pressure source changes suddenly and/or in a high vibration environment.
Benefits
Operational Stability: The fail freeze function ensures the valve position is maintained during signal failures, preventing unexpected process disruptions. The ability to withstand pressure changes and vibrations provides stable operation in various industrial environments.
Energy Efficiency: Near-zero air consumption in standby saves a significant amount of energy, especially beneficial for large factories, reducing operating costs.
Ease of Use and Maintenance: The LCD display and local control buttons make it convenient for on-site operation and monitoring. The modular internal structure simplifies maintenance and reduces downtime.
Accurate Control: With functions like auto calibration and PID control, it provides accurate valve positioning, improving the precision of process control. The adjustable valve characteristics and PID parameters allow for customization according to different process requirements
Energy Efficiency: Near-zero air consumption in standby saves a significant amount of energy, especially beneficial for large factories, reducing operating costs.
Ease of Use and Maintenance: The LCD display and local control buttons make it convenient for on-site operation and monitoring. The modular internal structure simplifies maintenance and reduces downtime.
Accurate Control: With functions like auto calibration and PID control, it provides accurate valve positioning, improving the precision of process control. The adjustable valve characteristics and PID parameters allow for customization according to different process requirements
Features
Input Signal and Control: Responds to a 4 - 20mA DC input signal from the controller for accurate valve stroke control.
Intelligent Functions: Built-in microprocessor enables auto calibration, PID control, and HART protocol communication.
Fail Safe Feature: Has a fail freeze function, keeping the valve at the current position when the input signal fails.
Low Air Consumption: Near zero air consumption in standby state.
Local Control and Monitoring: Equipped with an LCD display and 4 buttons for local control and status monitoring.
Vibration and Pressure Resistance: Can operate normally under sudden pressure changes and high vibration environments.
Modular Structure: Internal modular structure for easy maintenance.
Adjustable Valve Characteristics: Can set different valve characteristics such as linear, quick opening, equal percentage, and user-defined (with options to set 5 or 18 characteristic points).
PID Parameter Adjustment: PID parameters can be adjusted on-site without an additional communicator.
Split Range Setting: Split range can be set to 4 - 12mA or 12 - 20mA.
Good Protection: Protection class IP66, and the surface has a corrosion-resistant polyester powder coating (except for YT-2550 in some cases)
Intelligent Functions: Built-in microprocessor enables auto calibration, PID control, and HART protocol communication.
Fail Safe Feature: Has a fail freeze function, keeping the valve at the current position when the input signal fails.
Low Air Consumption: Near zero air consumption in standby state.
Local Control and Monitoring: Equipped with an LCD display and 4 buttons for local control and status monitoring.
Vibration and Pressure Resistance: Can operate normally under sudden pressure changes and high vibration environments.
Modular Structure: Internal modular structure for easy maintenance.
Adjustable Valve Characteristics: Can set different valve characteristics such as linear, quick opening, equal percentage, and user-defined (with options to set 5 or 18 characteristic points).
PID Parameter Adjustment: PID parameters can be adjusted on-site without an additional communicator.
Split Range Setting: Split range can be set to 4 - 12mA or 12 - 20mA.
Good Protection: Protection class IP66, and the surface has a corrosion-resistant polyester powder coating (except for YT-2550 in some cases)
Application
Oil and Gas Industry: Used to control valves in pipelines, refineries, and oil platforms for processes such as oil and gas transportation, separation, and refining.
Chemical Industry: In chemical plants, it is applied to control valves in reaction systems, distillation columns, and chemical fluid transportation pipelines.
Power Generation Industry: For example, in steam systems, water supply systems, and fuel supply systems of power plants.
Pharmaceutical Industry: Where precise control of fluid flow is required in the production process, such as in the synthesis of drugs, purification processes, and the supply of raw materials and solvents. The accurate valve positioning and adjustable flow characteristics of the YT-2500 help to ensure the consistency and quality of pharmaceutical products. Also, the low air consumption and good protection features are suitable for the clean and energy-efficient requirements of pharmaceutical plants.
Other Industrial Processes: like water treatment (controlling water intake, treatment process flow, and discharge), food and beverage (controlling the flow of raw materials and products)
Chemical Industry: In chemical plants, it is applied to control valves in reaction systems, distillation columns, and chemical fluid transportation pipelines.
Power Generation Industry: For example, in steam systems, water supply systems, and fuel supply systems of power plants.
Pharmaceutical Industry: Where precise control of fluid flow is required in the production process, such as in the synthesis of drugs, purification processes, and the supply of raw materials and solvents. The accurate valve positioning and adjustable flow characteristics of the YT-2500 help to ensure the consistency and quality of pharmaceutical products. Also, the low air consumption and good protection features are suitable for the clean and energy-efficient requirements of pharmaceutical plants.
Other Industrial Processes: like water treatment (controlling water intake, treatment process flow, and discharge), food and beverage (controlling the flow of raw materials and products)
Specification
Model | YT-2500L (linear), YT-2500R (rotary) |
Acting Type | Single or double acting |
Input Signal | 4 - 20mA DC |
Minimum Current Signal | 3.2mA (standard), 3.8mA (with HART) |
Impedance | Max. 460Ω at 20mA DC |
Supply Pressure | 1.4 - 7 kgf/cm² (0.14 - 0.7MPa) |
Stroke | 0 - 90° (YT-2500R), 10 - 150mm (YT-2500L) |
Air Connection | 1/4 G, 1/4 NPT, 1/4 PT |
Gauge Connection | 1/8 NPT, 1/8 PT |
Conduit Entry | NPT 1/2 (option for YT-2500L), 1/2 (standard for YT-2500R), PF 1/2 |
Protection Class | IP66 |
Ambient Temperature | Operating: -30 - 85°C; Explosion proof: -40 - 60°C (T5) / -40 - 40°C (T6) |
Linearity | ±0.5% F.S. |
Hysteresis | ±0.5% F.S. |
Sensitivity | ±0.2% F.S. |
Flow Capacity | 70 LPM |
Air Consumption (Idle) | Near zero (Sup = 1.4 kgf/cm²) |
Output Characteristic | Linear, quick open, equal percentage, user set (16 points) |
Vibration Resistance | 6g at 100Hz up to no resonance |
Humidity | 5 - 95% RH at 40°C |
