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Ninth Wave Technologies

Pressure Independent Control Valve

Pressure Independent Control Valve

Product Details

Packaging Type Carton
Material Metal
Automatic Grade Manual
Warranty 5 Year
Media Water
Usage Water Fitting

Details :

  • Pressure independent control valves balance the system at every point over the range of the control valve within 5% accuracy
  • Control flow exactly at all load conditions, not just at design conditions
  • Improved control and performance helps extend actuator life expectancy
  • High Turn-Down Ratio/Equal Percentage Flow results in linear heat transfer for optimal control. The characterized insert is integral to the ball, resulting in longer service life and higher differential pressure capabilities.
  • Less torque is needed, so you can use lower-cost, low-torque actuators on larger pipe sizes No Cv calculation required - just pick the valve that matches the flow requirements - Flow range of 1 to 95 gpm
  • Field serviceable stem allows valve to be serviced in the field rather than cut from the pipe
  • Optional test ports facilitate system set-up for balancing report
  • Manual override to control valve during installation or in the event of power failure
  • Full range of sizes from 1/2" to 6"
  • 5-year actuator warranty

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Details

Feature functions Benefits
Pressure independent sizing - Eliminates need for calculating Cv using flow and pressure drop. - Simplified valve sizing.
Adjustable flow limiter - Analog scale provides flexible adjustment of maximum flow allowed through the device. - Energy cost savingsOptimized performance.
- Eliminates over-supply. - Simplified balancing for fast and trouble free commissioning.
- Locking nut prevents accidental changes to maximum flow setting. - Commissioning cost savings.
Mechanism for maximum flow setting is independent of valve stroke - Always maintains full stroke of valve. - Greater control resolution and precision - Excellent control accuracy.
Stroke valve design - Uses standard Siemens SS Series, SQS, SAX, and new SQV globe valve actuators. - Eliminates deadband associated with ball valve actuators at beginning and end of stroke. - Common actuator wiring simplifies installation.
    - Greater control over the whole stroke of the valve and actuator.
Automatic pressure regulator - Automatic balancing and pressure independent - Energy cost savings - Easier balancing and shorter commissioning times.
- Maintains constant flow through the valve at any given control setting regardless of the pressure fluctuations in the system. - Commissioning cost savings.
- Always maintain maximum valve authority. - Eliminate “hunting”, increased actuator life due to fewer repositions.
- Avoid over- and under-flow. - Greater comfort due to better control.
Automatic balancing - Adjustable flow limiter and automatic pressure regulator automatically balance the system loop. - System expansions do not require re-balancing of existing system.
P/T Ports - Measure differential pressure across the device. - Easily validate that the device is operating in the design range for pressure independent functionality.
- Standard on flanged valves. - Saves time troubleshooting problems.
- Optional accessory kit for threaded valves.
Proven Actuator families - Familiar, rugged and reliable Siemens actuators have been installed in well over a million applications worldwide. - Ensure highest levels of customer satisfaction.

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