NelesAce™ basis weight control valve

Superior element for basis weight control

NelesAce is the ultimate solution for basis weight control which is one of the most critical applications for a valve in a paper machine. The unit consists of a reliable V-port segment valve, complete with a high-resolution step-motor-driven rotary actuator, limit switches, and potentiometer.

Compatible with virtually all leading quality control systems

High rangeability and high resolution conformance

Assures consistent paper grade quality

Flexibility to operate on a variety of inputs


The NelesAce control unit's unique feature to run valve with various step sizes, depending on error between actual and desired flow rate, makes it a superior element for basis weight control. Any error can be eliminated quickly and accurately without overshooting. This helps to reduce settling time during grade change.


  • Paper machines basis weight control


Design Segment valve together with high resolution stepping motor
Size range DN 50-250, flangeless / DN 50 - 500, flanged
Pressure classes PN 25/40, ASME 150/300
Maximum ambiuent temperature +50 °C