Safety relief valve records

Keeping the Safety Relief Valve Records Straight... 

Separate oontroUers Self- actuated (integral) regulating valves Safety (relief) valves Record- ing Indi- cating Glass devices for observation only (no measurement, Record- ing Indi- cating Blind Primary element Wells... 

Keeping the safety relief valve records straight... 

Reliability Assessment of Safety/Relief Valves Chemical Process 866 records ... 

Occasionally, there may be business pressures or maintenance scheduling problems that would encourage the delay of prooftesting of safety critical alarms and shutdown systems. Such situations can also delay of vessel inspections and safety relief valve testing. Some type of variance procedure or review policy should be defined to handle this occasional need. Such a policy ought to require the review of all of the inspection and test records on the specific equipment involved as well as an approval of the superintendent of the area. 

The component failure rate data used as input to the fault tree model came from four basic sources plant records from Peach Bottom (a plant of similar design to Limerick), actual nuclear plant operating experience data as reported in LERs (to produce demand failure rates evaluated for pumps, diesels, and valves), General Electric BWR operating experience data on a wide variety of components (e.g., safety relief SRV valves, level sensors containment pressure sensors), and WASH-1400 assessed median values. 

Obviously, definition 2 would apply to a safety audit. The word audit implies a standard. The purpose of the audit is to find out if the standard is being met. This could be a standard for the number and location of fire extinguishers, whether operators have met certain training requirements, whether the relief valves on pressure vessels have been tested in the time period required, or virtually anything else that management deems essential to safety. Audits can involve any or aU of the following physical inspections, interviews, and review of documents and records. 

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