While performing a monthly inspection on an orifice plate proportioner, you need to verify the pressure vacuum vent is operating freely.

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Multiple Choice

While performing a monthly inspection on an orifice plate proportioner, you need to verify the pressure vacuum vent is operating freely.

Explanation:
The vent must be checked monthly because it serves as a safety relief path for any pressure or vacuum that could develop in the orifice plate proportioner. If the pressure vacuum vent is blocked or sticking, it can’t relieve pressure (or vacuum) when needed, which risks overpressure, equipment damage, or unsafe releases. Ensuring the vent operates freely is a routine part of monthly maintenance to keep the system safe and reliable between annual inspections.

The vent must be checked monthly because it serves as a safety relief path for any pressure or vacuum that could develop in the orifice plate proportioner. If the pressure vacuum vent is blocked or sticking, it can’t relieve pressure (or vacuum) when needed, which risks overpressure, equipment damage, or unsafe releases. Ensuring the vent operates freely is a routine part of monthly maintenance to keep the system safe and reliable between annual inspections.

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