Can a Mark 66 Air Loaded Regulator be Controlled by an I/P Regulator?
Know whether a Mark 66 Air Loaded Regulator can be controlled by an I/P (Current-to-Pressure) regulator.
In this clip, a customer would like to know if their Mark 66 air loaded pressure regulator can be controlled by a smaller air i/p regulator.
They would also like to know what the minimum setpoint is.
Watch this video to learn the answers.
In this video, Lyle Hamilton, a Jordan Valve Project Engineer, explains whether a Mark 66 Air Loaded Regulator can be controlled by an I/P (Current-to-Pressure) regulator.
Feasibility and Capabilities
- I/P Compatibility: It is confirmed that I/P regulators are suitable for loading the Mark 66 regulator.
- Pressure Range: Jordan Valve offers extended I/P regulators that can reach set points as high as 200 PSI.
Operational Limitations
- Minimum Set Point: While the customer inquired about setting the regulator as low as 0.75 PSI, Lyle explains that this is not possible.
- Recommended Minimum: For optimal performance of the Mark 66, a minimum set point of approximately 5 PSI is required.
What is an I/P Regulator?
An I/P or IP regulator (Current-to-Pressure regulator) is an industrial control device that converts an electrical signal (typically 4-20 mA) into a proportional pneumatic pressure output.
In the context of the Jordan Valve Mark 66, this device acts as the “pilot” or loading mechanism to tell the larger valve how to behave.
Key Functions
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Signal Conversion: It translates electronic commands from a controller or computer into physical air pressure.
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Loading the Regulator: It provides the “set point” pressure to the dome of an air-loaded regulator like the Mark 66.
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Automation: By using an I/P, a manual process can be turned into an automated one, allowing for remote pressure adjustments.
Capabilities & Constraints (Mark 66 Context)
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High-Pressure Range: Extended I/P units can handle loading pressures up to 200 PSI.
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Low-End Limit: While highly accurate, they have physical limits; for the Mark 66, the I/P should not be used for set points lower than 5 PSI, as it cannot reliably maintain a 0.75 PSI set point.