- 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
| FEATURE | FUNCTION | BENEFIT |
| 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. - Eliminates over-supply. - Locking nut prevents accidental changes to maximum flow setting. |
- Energy cost savingsOptimized performance. - Simplified balancing for fast and trouble free commissioning. - 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 - Maintains constant flow through the valve at any given control setting regardless of the pressure fluctuations in the system. - Always maintain maximum valve authority. - Avoid over- and under-flow. |
- Energy cost savings - Easier balancing and shorter commissioning times. - Commissioning cost savings. - Eliminate “hunting”, increased actuator life due to fewer repositions. - 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. - Standard on flanged valves. - Optional accessory kit for threaded valves. |
- Easily validate that the device is operating in the design range for pressure independent functionality. - Saves time troubleshooting problems. |
| 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. |