Key features

• Multi-stage pressure reduction with single-stage controllability
  
• Quick exchangeable seat
• Spray water atomising nozzles
• Integrated water valve
• Noise / vibration reduction
• Desuperheating downstream through injection of finely atomised water into the low pressure outlet
• Optimal steam temperature control
• High rangeability

Benefits

• Quick exchangeable seat

  
• The quick exchangeable “Q seat” enhances the maintainability of the valve by allowing quick and easy replacements

• Spray water atomizing nozzles
  
• ​OP spray nozzles are installed in the outlet of the valve and handle the injection of spray water into the steam. The nozzle features a spring which extends as the pressure in the nozzle holder increases. Water is rotated around the nozzle plug thanks to the special arrangement of the water channels. Stem and seat are designed to create maximum water velocity at the nozzle edge point, which improves water atomization.

• ​Improved atomisation
  
• ​​An optional extender allows the diameter of the steam outlet to be smaller than the diameter of the connecting steam pipe which increases steam velocities close to the spray nozzles. This improves the evaporation of the spray water as well 
as rangeability.
  
  
• Integrated water valve

• ​The steam conditioning valve can be combined with the VSGIC desuperheater with integrated spray water control valve, which can replace the external water valve.​
  
  
• Noise / vibration reduction

• The VLBP features multi-stage pressure reduction with single-stage controllability. The first stage takes place as the plug lifts from the seat, revealing a series of holes in the bonnet cage. The second stage takes place at the valve outlet, which is fitted with 1-3 perforated cylinders. The perforations break the steam into smaller fluid jets, resulting in a reduction in noise and vibration. This also shapes the flow pattern for more efficient desuperheating downstream.
  
  
• High rangeability

• The VLBP features perforations in the valve plug which allows for finer control at low steam flow rates where these holes are the only conduit passing steam through the valve. This results in the modified linear valve characteristic, and increases the valve’s rangeability.