Don’t Waste Time! Facts Until You buy Your Control Valves

Hydraulic control valves are used to control and regulate different operating parameters in aqueducts, impulses, and networks of water and other fluids. Hydraulic control valves generally operate autonomously although they can also be remotely commanded using system energy to modulate, open or close. Next you will see the main internal parts of the control valves, their operating characteristics and then the main functions depending on the parameters on which they are going to work (pressure, flow, level, and their combinations). You can see on your own by clicking here at blackhawksupply.com.

Control valve functions

As it is mentioned at the beginning, there are different control functions necessary to operate fluid transport systems, below is a list of the most important:

-Pressure reducing valve: reduces the pressure downstream of the valve to a pre-set value constantly and invariably over time, regardless of the pressure variations upstream of the valve, and also regardless of the variations in flow or demand on the line. Pressure regulation is carried out by modifying the compression of the internal pilot spring.

-Pressure sustaining valve: maintains the pressure upstream of the valve, that is, it does not allow the pressure to drop below a pre-set value, it does so independently of the pressure variations downstream of the valve, and also independently of the variations in flow or demand in the line. Pressure regulation is carried out by modifying the compression of the internal pilot spring.

– Pressure reducing and sustaining valve: combines both functions indicated above, but gives priority to the pressure sustaining function. It does so independently of the variations in pressure downstream of the valve, and also independently of the variations in flow or demand in the line. Pressure regulation is carried out by modifying the compression of the internal spring of the pilots (reducing pilot and sustaining pilot).

-Flow or flow regulating valve: maintains constant flow over time, that is, it does not allow the flow to exceed the set point, regardless of pressure variations upstream of the valve, and also regardless of flow variations or demand on the line. Pressure regulation is carried out by modifying the compression of the internal spring of the pilot, which works with the assistance of an orifice plate.

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