Waterpressureregulator

Upstream pressure flows into the Drip Pot which knocks out liquid from the supply gas which could be detrimental to other instruments.

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For reducing pressure in high pressure application, you can use a High Pressure Control Valve package set up for pressure reducing application.

Next, downstream gas moves through the sense line protector. This device protects the pilot from over pressurization. It blocks the downstream pressure when it exceeds the adjustable limit and reopens when inlet pressure drops below the limit.

Beginning with the control valve in a closed position and the adjusting screw not yet calibrated to a desired set point, the upstream pressure begins to flow – in this example, up to a pressure of 400 PSI.

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Pressureregulator

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The rapid but stable repositioning of the pilot plug produces a throttling action, and the valve will open and closed by only a small percentage to maintain the set point.

When the adjustment screw is unthreaded, there is no downward pressure on the pilot diaphragm assembly. Once the adjusting screw is threaded, the spring puts pressure on the assembly which positions the pilot plug to open the flow of supply pressure into the control valve actuator.

Water valve

In this example, the downstream pressure will hover around 99 PSI, where the valve is barely open, to 100 PSI, when the valve is closed.

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As this cycle repeats, liquids continue to fall out of the supply gas into the drip pot where it will need to be drained regularly, depending on the conditions.

This supply pressure pushes up on the control valve diaphragm working against the tension of the spring. This opens the valve and allows upstream pressure to move downstream.

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PRV valve

As this cycle repeats, liquids continue to fall out of the supply gas into the drip pot where it will need to be drained regularly, depending on the conditions.

Now, supply pressure is blocked from going into the control valve actuator, and instead the diaphragm pressure is rerouted out through the pilot and vented.

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Regulating valve

Next, downstream gas moves through the sense line protector. This device blocks pressure to the pilot when it exceeds the working pressure of that pilot.

In this video, we’re going to look at the production flow through this pressure reducing control valve package, configured with a Bellows Controlled High Pressure Pilot.

The supply gas regulator reduces the upstream pressure to 30 PSI;to provide supply pressure to the pilot after passing through a filter.

Once pressure has vented, and there is no longer enough pressure to overcome the pilot spring, the pilot diaphragm assembly will move back down.

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As the sense pressure approaches the set point, it causes the bellows to contract, actuating the bellows stem to move it upward against the diaphragm assembly.

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In this video, we’re going to look at the production flow through this Pressure Reducing High Pressure Control Valve Package configured with a Diaphragm-Controlled High Pressure Pilot.

When the adjustment screw is unthreaded, there is no downward pressure on the pilot diaphragm assembly. Once the adjusting screw is threaded farther into the bonnet, the spring puts pressure on the assembly, which positions the pilot plug to open the flow of supply pressure into the control valve actuator.