2019 Breeze Jan-Feb

When asked to manually close the King Valve, the impulse of many first respond- ers will be to close the isolation valve closest to the High Pressure Receiver (upstream isolation valve). Careful review of the flow through the solenoid valve, however, illustrates that this will allow liquid ammonia to become trapped between the isolation valve and the sole- noid valve if the solenoid valve were to be closed.

Because the solenoid valve is designed to allow for reverse flow when closed, a safer approach to closing the King Valve is to close the downstream isolation valve. When operated this way, liquid cannot be trapped, even if the solenoid valve were to close. Since it is important that the King Valve be clearly labeled, we suggest installing the label on the isolation valve down- stream of the solenoid valve to aid first responders who are not likely to be familiar with the nuances of solenoid valve flow.

EMPLOYMENT

Refrigeration Supervisor

This person will manage all Refrigera- tion and Boiler systems to ensure the proper operation of the Plant equipment within established guidelines. This position will also direct, supervise, and lead multiple lower level technicians. A minimum of 5 - 10 years in ammonia refrigeration experience is required. Must have general knowledge of PSM/ RMP.

CARO/CIRO certification through RETA preferred. Computer skills to include Microsoft Office Suite (Word, Excel, Outlook). SAP experience preferred. Ability to work all shifts as needed.

Apply at https://www.perduefarms.com/ careers/ under Dillon, SC to the Refrigera- tion Supervisor’s position, requisition number 177947.

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