Neles NelesAce is a metering control valve specifically designed for paper machine basis weight control loops. The valve features a V-port segmented valve design, a high-resolution stepper motor-driven rotary actuator, and integrated limit switches and potentiometer. It is available in nominal sizes DN 50-500 and pressure classes PN 25/40 and ASME 150/300. The valve is directly compatible with mainstream quality control systems for precise stock flow adjustment, helping maintain consistent paper basis weight quality.
NelesAce Metering Control Valve
Neles
Neles NelesAce Paper Machine Basis Weight Control Metering Valve
A metering control valve for pulp flow on paper machines, featuring a segmented V-port design.
- Category
- Segment Valves
- Nominal size range
- DN 50-250 (lugged); DN 50-500 (flanged)
- Pressure ratings
- PN 25/40, ASME 150/300
Specifications
- Valve design
- Segmented V-port valve
- Actuator drive
- High-resolution stepper motor-driven rotary actuator
- Position and limit components
- Limit switches and potentiometer
- Nominal size range
- DN 50-250 (lugged); DN 50-500 (flanged)
- Pressure ratings
- PN 25/40, ASME 150/300
- Maximum ambient temperature
- +50 °C
Application scenarios
Metering control of pulp flow on paper machines
NelesAce is used to adjust pulp flow in paper machine basis weight control loops. It combines a segmented V-port valve with a high-resolution stepper motor-driven rotary actuator, is compatible with mainstream quality control systems, and helps maintain consistent paper basis weight quality.
Selection points
Integrated segmented V-port valve and high-resolution stepper motor-driven rotary actuator
The product uses a segmented V-port valve and a rotary actuator driven by a high-resolution stepper motor, making it suitable for flow adjustment and positioning control in paper machine basis weight control applications.
Adaptability to quality control systems and multiple input signals
The product is compatible with nearly all mainstream quality control systems and can flexibly accommodate multiple input signals, making it suitable for evaluation with existing paper machine quality control systems.
Installation notes
Strictly Limit the Maximum Ambient Temperature
The maximum ambient temperature at the installation location must not exceed +50 °C.
FAQ
How does the NelesAce metering control valve provide paper machine basis weight control?
NelesAce combines a reliable V-port segmented valve with a high-resolution stepper motor-driven rotary actuator. The actuator finely positions the valve to meet the adjustment accuracy and response resolution requirements of paper machine basis weight control.
What paper process control requirements is NelesAce suitable for?
The valve is designed for paper machine basis weight control applications. Basis weight control is a critical valve application in papermaking, and NelesAce's high rangeability and high-resolution response help maintain consistent paper basis weight quality.
How should valve size and connection type be determined when selecting NelesAce?
The size range for the wafer-style design is DN 50 to DN 250, while the flanged design is available from DN 50 to DN 500. The final selection should be based on the piping size, installation connection requirements, and the specific model.
Which control systems and input signals are compatible with NelesAce?
NelesAce is compatible with nearly all mainstream quality control systems and can flexibly support a range of input signals. During selection, verify the field control system interface, required input signal, and actuator control requirements.
What pressure classes and ambient temperature range are available for NelesAce?
The series is available with pressure classes PN 25/40 and ASME 150/300, with a maximum ambient temperature of +50 °C. The actual configuration should also be confirmed based on the specific model and operating conditions.