15:52 Mar 31, 2020 |
Spanish to English translations [PRO] Tech/Engineering - Petroleum Eng/Sci / Valve actuators for oil refinery | |||||||
---|---|---|---|---|---|---|---|
|
| ||||||
| Selected response from: philgoddard United States | ||||||
Grading comment
|
Summary of answers provided | ||||
---|---|---|---|---|
4 +3 | fail open |
|
fail open Explanation: Fail open means a valve would open at a loss of signal or power. ... Under a power outage, the source of the air pressure would be lost and the valve would “fail” open. Fail Closed (FC) - Air to Open. Fail closed means the valve will close when signal is interrupted or lost. http://blog.craneengineering.net/how-to-choose-a-fail-safe-p... |
| |
Grading comment
| ||