INJECTION CONTROL VALVE


Water injection control valve

 Design characteristics:

To provide an optimal atomisation, BOMAFA water injection valves have a number of outlet connections depending on the maximum flow. Therefore, the total amount of flow is injected in a number of cooler units. Each outlet is connected to one cooler unit only. 

With the opening of the valve only one cooler unit is necessary to reduce the steam temperature to the required level. At the predefined opening level a second, third or forth cooler unit is connected. 

The overall advantage is that for 0-100% flow the relative velocity between the steam molecules and the water droplets remains high . Only one cooler unit designed for 100% flow can not achieve an adequate relative velocity for reduced flow quantity. 

· maintenance friendly due to easily exchangeable internals
· round valve bodies
· no vibrations
· no cavitations
· noise level <75 dB (A)
· valve body sizes up to 2000 t/h
· pressure drop in stages
 
Water injection control valves have the application to control the temperature of the steam. In fact they are quantity regulation valves to provide the exact amount of water necessary to achieve the desired temperature drop. Due to the fact that the consumption can vary quite heavily, BOMAFA design allows substantial pressure fluctuations with a constant inlet pressure. A customised control curve provides a solution to retain a linear flow line.