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KS Basis Weight

Ramén KS- Basis Weight

– Soft seated control valve, DN 50 – DN 300

Basis weight control valve is a critical part in a paper machine operation controlling the the consistency of the pulp into the Head Box which dictates the paper weight and quality at the end of the process. Read more …

To meet customers’ specification, Ramén offers a reliable and highly accurate control solution which is a customized KS-type valve in material execution 1A with a special ball-shaft connection to avoid backlash, suitable for the basis weight application. The high resolution controllability is enhanced by Oden backlash-free electric actuator with stepper motor controlled by a microprocessor.

Valve features and benefits:

  • Compact, low weight and robust design
  • High control rangeability (300:1)
  • Enhanced control accuracy with minimum backlash
  • Equal percentage characteristic
  • Low torque operation
  • Self-drained with no hidden cavities and no clogging
  • Low maintenance and long lifetime

Actuator features:

  • Backlash free with control precision of 5.000 steps in 90° valve travel
  • Adjustable running time and acceleration
  • Compact design with hand wheel or key for manual operation
  • Built-in feedback positioning on the main shaft with high accuracy
  • Duty cycle 100%
  • No need for additional control box or cabinet
  • Programmable with Oden Valve Program (OVP)

gbRamén’s Control Solution For Basis Weight Controlsmall-pdf-logo

gbOden Actuator – Ramén Ball Sector Valvesmall-pdf-logo

Size range:

Pressure Class:

Capacity:

Material:

 

Temperature range:

Control characteristic:


DN 50 – DN 300

PN 16-40

Kvs 94 – 3840

EN1.4409

PTFE seat ring

-40°C to +170°C

Equal percentage


2″ – 12″

ANSI 150-600 lb

Cv 110 – 4500

AISI 316L

PTFE seat ring

-40°F to +338°F

Equal percentage


Power supply:

Control Signal:

 

Running time:

Enclosure protection class:

24/48 VDC

4-20 mA galvanically isolated control and feedback signals, Modbus 485,

Digital 24 VDC 3-point control, 0-10V

~ 3 sec. to 15 min.

IP67

 

Animated size overview of the Ramén Ball Sector Valve