1. Streamlined flow passages and the absence of turbulence-producing cavities behind the disk allow stable fluid movement through straight-flow body
2. Pressure drop is 70% less than other streamlined globe valves. (Equivalent length L/D : 40~50) 
3. Guide separated from body provide continuous guiding of valve disk from the open to closed position. This guide offers the good seat alignment and stable operation
4. Y-NRV yield lower pressure drop than other pattern, because they permit a more nearly straight through flow path