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Worcester 1 Inch Solenoid Actuated Gas Operated SCHe System Valves

Description: 1 inch gas-operated full-port ball valves incorporate a solenoid and limit switches as integral parts of the actuator. These valves are normally open and fail safe to the open position (GOV-1*02 and 1*06 fail closed) to provide a flow path of helium gas to the MCO under helium purge and off-normal conditions when the MCO is isolated.
Date: November 13, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Whitey SCHe Ball Valves Provide Test Port Isolation

Description: These valves are 1/4-inch ball valves fabricated of 316 stainless steel. Packing is TFE (standard). They are used as normally closed isolation valves for test ports in the SCHe System between the gage root valve and the pressure indicator.
Date: October 19, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Reotemp Pressure Indicator Local Pressure Indication in the 15 PSIG SCHe System

Description: These 0-30 psig range pressure indicators are located in the SCHe supply piping after PCV 5*23 and before PCV 5*27. The pressure indicators provide information on the pressure being maintained between the two PCVs. This design is used for each of the SCHe supply lines.
Date: September 3, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Whitey SCHE Gauge and Root Valves

Description: These valves are 1/2 inch ball valves fabricated of 316 stainless steel. Packing is TFE (standard). They are used as isolation valves for pressure instrumentation in the SCHe System between the helium bottle supply manifolds and safety class helium pressure instrumentation, and in lower pressure SCHe supply line.
Date: September 3, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Worcester Solenoid Actuated Gas Operated MCO Isolation Valves

Description: These valves are 1 inch gas-operated full-port ball valves incorporating a solenoid and limit switches as integral parts of the actuator that are used in different process streams within the CVDF hood. The valves fail closed (on loss of pressure or electrical) for MCO isolation to either reduce air leakage or loss of He. All valves have coupling for transverse actuator mounting.
Date: November 13, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Worchester Solenoid Actuated Gas Operated MCO Isolation Valves

Description: These valves are 1 inch gas-operated full-port ball valves incorporating a solenoid and limit switches as integral parts of the actuator that are used in process streams within the CWF hood. The valves fail closed (on loss of pressure or electrical) to prevent MCO vent drain to either reduce air In-leakage or loss of He. The valves have couplings for transverse actuator mounting.
Date: November 13, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Krohne Flow Indicator and High Flow Alarm Local Indicator and High Flow Alarm of Helium Flow from the SCHe Purge Lines C and D to the Process Vent

Description: Flow Indicators/alarms FI/FSH-5*52 and -5*72 are located in the process vent lines connected to the 2 psig SCHe purge lines C and D. They monitor the flow from the 2 psig SCHe purge going to the process vent. The switch/alarm is non-safety class GS.
Date: September 3, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Check all SCHE Supply Purge Check Valves to Prevent Back Flow from SCHE into Helium Supply

Description: These valves are 1/2-inch check valves used to prevent SCHe backflow into the Helium System if pressure in the Helium System drops below the pressure of the control valve downstream of the SCHe supply bottles. (14 psig in trains A and B and 2 psig in trains C and D).
Date: October 23, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department

Whitey SCHe Ball Valves Provide Test Port Isolation

Description: These valves are 1/4 inch ball valves fabricated of 316 stainless steel. Packing is TFE (standard). They are used as normally closed isolation valves for test ports in the SCHe System between the gage root valve and the pressure indicator.
Date: September 15, 2000
Creator: Miska, C. R.
Partner: UNT Libraries Government Documents Department