Laserfiche WebLink
�RadNet <br /> HAZARDOUS MATERIALS BUSINESS PLAN <br /> MRI Manual / Regulatory Affairs <br /> Original Effective Date: April 28, 2021 <br /> During transportation and storage, the liquid transfer valve V-1 (white) and the vent valve V-2 <br /> (yellow) are closed, while the isolation valve V-3 (green) is open to the auxiliary relief device. To <br /> transfer liquid helium, a vacuum jacketed withdrawal stinger (dip tube) is first inserted through V- <br /> 1 (white); V-3 (green) is closed and V-2 (yellow) is opened and used to pressurize the liquid <br /> container with clean dry helium gas. When the container is pressurized to the desired level, the <br /> transfer of liquid helium can begin. <br /> Excess pressure in the container can be relieved before, during, and after the liquid helium is <br /> transferred. To vent gas, V-2 (yellow) can be opened. Prior to placing the liquid container in <br /> storage or shipment, V1 (white) and V-2 (yellow) should be placed in the closed position, and V- <br /> 3 (green) should be placed in the open position. <br /> Failure to close V-1 (white) and V-2 (yellow) may cause an ice plug in the neck of the liquid <br /> container, creating a potential hazard. <br /> Proper Valve Positions <br /> V-3 v2 v-f <br /> Green <br /> : While <br /> Handle Handle <br /> Valve Valve <br /> Vent <br /> Release excess pressure • <br /> before, during, and after <br /> product transfer as needed. Closed Open Closed <br /> Transfer <br /> Liquid in or out of liquid0 <br /> cylinder 46 <br /> Closed Open' Open <br /> Store or Ship <br /> Valve positions after excess <br /> pressure has been vented. & 4& 4 <br /> Open Closed" Closed" <br /> Failure to close these two valves may result in a potential hazard. <br /> The yellow valve is used to pressurize the liquid container with clean,dry helium gas. <br /> Failure to c1low this vahre may cause an ice plug in the neck of the liquid conta+ner,creatirg <br /> a potential hazard <br /> 6 <br />