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Technical Operating Specifications (TOS) <br /> Function:The function of the ammonia tank is to provide storage for the Anhydrous Ammonia liquid <br /> inventory needed as part of the bottle coating system baghouse operation. <br /> Description Capacity Safe Operating Consequences of Corrective Action <br /> Limits Deviation <br /> Ammonia Tank 500 gallons 265 prig MAWP,with Over pressurization will An automatic pressure <br /> >2000 lbs a maximum capacity cause operation of release valve will open. <br /> of 85%of total pressure relief valves. Ammonia will be released to <br /> volume of tank. Probable risk of ammonia the environment. <br /> inhalation by nearby <br /> population <br /> Overfilling will cause the Manually shutdown the <br /> automatic release valve to transfer pumps. Automatic <br /> open and sending ammonia relief valve will open and <br /> into the environment. send the ammonia to the <br /> environment <br /> Control failure may result Manually shutdown the <br /> in overfilling. transfer pumps. Automatic <br /> relief valve will open and <br /> send the ammonia to the <br /> environment. <br /> Controls and Instrumentation <br /> Safety Systems <br /> Description Item Number Function Position and/or Normal Setpoint <br /> High Level Gauge N/A Measures level of Less than 85%fill level <br /> ammonia in the tank <br /> Low Level Gauge N/A Measures level of <br /> ammonia liquid in the <br /> tank <br /> 2 Pressure Relief Valves N/A Protect against over Top of the tank <br /> pressurization. <br /> Standard Operating Procedure (SOP) <br /> Task Flow Diagram <br /> 1. Normal startup <br /> 2. Normal shutdown <br /> 3. Shutdown and isolation for maintenance/repair activity <br /> 4. Emergency shutdown and isolation <br /> 5. Startup following emergency shutdown and isolation,or shutdown and isolation for maintenance activities. <br />