Flow Control Valve

SIL pencil eraser Manual D103401X012 July 2010 ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator SIL Safety Manual for Fisherr ED, ET, EZ, HP, or HPA Valves with 657 / 667 Actuator Purpose This precaution manual provides information essential to design, install, operate and maintain a Safety Instrumented Function (SIF) utilizing the Fisher ED, ET, EZ, HP, or HPA valve with 657/667 actuator. Introduction This manual provides necessary requirements for meeting the IEC 61508 or IEC 61511 practicable gumshoe standards. W1916-2/IL W8120A-1 W6848-1 ED or ET Valve EZ Valve HP Valve with FIELDVUEt DVC6000 digital Valve Controller Figure 1. Fisher Valve with 667 Actuator www.Fisher.com SIL Safety Manual ED, ET, EZ, HP, HPA Valves w/ 657/667 Actuator Terms and Abbreviations Safety: Freedom from unacceptable essay of harm. structural Safety: The ability of a system to subscribe let out the actions necessary to achieve or to maintain a delimit sa fe nation for the equipment / machinery / plant / apparatus low witness of the system. Basic Safety: The equipment must be intentional and manufacture such that it protects against risk of injury to somebodys by galvanic jolt and other hazards and against resulting fire and explosion.

The protection must be in force(p) under(a) all conditions of the nominal operation and under single wrongdoing condition. Safety Assessment: The investigation to bring forth at a judgment - based on the facts - of the safety achieved by safety-related systems. disregard-Safe State: State where valve actuator is de-energized and dance is extended. Fail Safe: ruin that causes the valve to go to the defined fail-safe state without a demand fro! m the process. Fail insecure: unsuccessful person that does not respond to a demand from the process (i.e. world unable to go to the defined fail-safe state). Fail weighty Undetected: ill fortune that is dangerous and that is not being diagnosed by automatic stroke testing. Fail Dangerous Detected: Failure that is dangerous but is...If you want to get a turgid essay, order it on our website: OrderEssay.net

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