When this cannot be done precautions should be taken

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Unformatted text preview: o grade) is an action to consider. When this cannot be done, precautions should be taken which limit damage when the material eventually does fall to grade. Also, inadvertent operation of ¼ turn drain valves has occurred in many facilities, this example is for falling snow/ice. Other causes include : inadvertent contact with moving objects (hoses, people, ladders or materials), vibration, etc. Experience indicates that round handles are an effective means to prevent a number of releases. Many locations have also adopted a practice of installing a mechanical plug (or blind flange) in all valve openings, which could allow release of a hazardous material. AIChE © 2001. All rights reserved. Reproduction for non-commercial, educational purposes is encouraged. However, reproduction for the purpose of resale by anyone other than CCPS is strictly prohibited. Contact us at ccps@aiche.org or 212-591-7319...
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