Methods Of Controlling Upstream And Downstream Pressure

  • Thread starter jamesnzx
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In summary, upstream and downstream pressure refer to the pressure levels in a fluid system before and after a control valve, respectively. Controlling these pressures is crucial for ensuring stable and efficient operations and preventing equipment failure. The most common methods of control include control valves, pressure regulators, back pressure regulators, and pressure relief valves. When selecting a method, factors such as the type of fluid, flow rate, and required precision should be considered. The effectiveness of control can be evaluated by monitoring pressure levels and changes in flow rate and fluctuations.
  • #1
jamesnzx
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Hi,
Can someone kindly suggest me some methods of controlling upstream pressure as well as downstream pressure, whereby the upstream pressure should be keep at about 50 to 60bar (reject from reverse osmosis unit) and downstream pressure at 20bar maximum since the downstream equipment is sensitive to pressure.
Thanks in advance
 
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  • #2
Without much more information about what you are trying to do, all I can suggest is a pump and valves.
 
  • #3
Does all of the RO unit waste have to go through the down stream unit?
 

What is upstream and downstream pressure?

Upstream and downstream pressure refer to the pressure levels in a fluid system before and after a control valve, respectively. Upstream pressure is the pressure before the valve, while downstream pressure is the pressure after the valve.

Why is controlling upstream and downstream pressure important?

Controlling upstream and downstream pressure is important for maintaining stable and efficient operations in a fluid system. Proper control of pressure ensures that the system operates within its designed parameters and prevents equipment failure or damage.

What are the common methods of controlling upstream and downstream pressure?

The most common methods of controlling upstream and downstream pressure include using control valves, pressure regulators, back pressure regulators, and pressure relief valves. These devices can either restrict or release fluid to maintain the desired pressure levels.

What factors should be considered when selecting a method for controlling upstream and downstream pressure?

When selecting a method for controlling upstream and downstream pressure, factors such as the type of fluid, flow rate, pressure range, and required precision should be considered. The type of equipment and its compatibility with the fluid system should also be taken into account.

How can the effectiveness of upstream and downstream pressure control be evaluated?

The effectiveness of upstream and downstream pressure control can be evaluated by monitoring and measuring the pressure levels before and after the control valve. Changes in flow rate and pressure fluctuations should also be monitored to ensure that the control method is maintaining the desired pressure levels.

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