{"id":8226,"date":"2026-05-22T16:38:15","date_gmt":"2026-05-22T16:38:15","guid":{"rendered":"https:\/\/www.yunrui-controls.com\/?p=8226"},"modified":"2026-05-22T16:38:41","modified_gmt":"2026-05-22T16:38:41","slug":"control-valve-on-off-valve-fault-tree-analysis-fta","status":"publish","type":"post","link":"https:\/\/www.yunrui-controls.com\/th\/control-valve-on-off-valve-fault-tree-analysis-fta\/","title":{"rendered":"\u0e04\u0e39\u0e48\u0e21\u0e37\u0e2d\u0e09\u0e1a\u0e31\u0e1a\u0e2a\u0e21\u0e1a\u0e39\u0e23\u0e13\u0e4c\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e01\u0e32\u0e23\u0e27\u0e34\u0e40\u0e04\u0e23\u0e32\u0e30\u0e2b\u0e4c\u0e41\u0e1c\u0e19\u0e1c\u0e31\u0e07\u0e04\u0e27\u0e32\u0e21\u0e1c\u0e34\u0e14\u0e1e\u0e25\u0e32\u0e14 (FTA) \u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\/\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e40\u0e1b\u0e34\u0e14-\u0e1b\u0e34\u0e14"},"content":{"rendered":"

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\ud83d\udd0d Fault Tree Structure Overview<\/h2>\r\n\r\n\r\n\r\n
\u3010TOP EVENT\u3011\ud83d\udd34 Valve Operation\/Control Abnormality\r\n\u251c\u2500\u3010OR\u3011\ud83d\udd27 Valve Body\/Trim Failure\r\n\u2502  \u251c\u2500 Plug\/Seat wear or corrosion\r\n\u2502  \u251c\u2500 Stem sticking or breakage\r\n\u2502  \u251c\u2500 Body leakage (external\/internal)\r\n\u2502  \u251c\u2500 Packing leakage\/sticking\r\n\u2502  \u2514\u2500 Media crystallization\/scaling causing blockage\r\n\u2502\r\n\u251c\u2500\u3010OR\u3011\u2699\ufe0f Actuator Failure\r\n\u2502  \u251c\u2500\u3010OR\u3011Pneumatic Diaphragm\/Piston Failure\r\n\u2502  \u2502  \u251c\u2500 Diaphragm rupture\r\n\u2502  \u2502  \u251c\u2500 Piston seal aging\/leakage\r\n\u2502  \u2502  \u2514\u2500 Spring breakage or fatigue\r\n\u2502  \u2514\u2500\u3010OR\u3011Electric Actuator Failure\r\n\u2502     \u251c\u2500 Motor burnout\r\n\u2502     \u251c\u2500 Capacitor damage\r\n\u2502     \u251c\u2500 Gear\/screw wear\r\n\u2502     \u2514\u2500 Limit switch malfunction\r\n\u2502\r\n\u251c\u2500\u3010OR\u3011\ud83d\udca8 Air Supply\/Power\/Signal Loop Failure\r\n\u2502  \u251c\u2500\u3010OR\u3011Air Supply Failure\r\n\u2502  \u2502  \u251c\u2500 Insufficient air pressure\r\n\u2502  \u2502  \u251c\u2500 Air line leakage\/blockage\r\n\u2502  \u2502  \u251c\u2500 Filter regulator clogged\r\n\u2502  \u2502  \u2514\u2500 Air supply with water\/oil\/contaminants\r\n\u2502  \u251c\u2500\u3010OR\u3011Power Supply Failure\r\n\u2502  \u2502  \u251c\u2500 24V\/220V power loss\r\n\u2502  \u2502  \u2514\u2500 Voltage fluctuation\r\n\u2502  \u2514\u2500\u3010OR\u3011Control Signal Failure\r\n\u2502     \u251c\u2500 4-20mA signal open\/short circuit\r\n\u2502     \u251c\u2500 DCS\/AO card failure\r\n\u2502     \u2514\u2500 Solenoid valve coil burnout\/plunger stuck\r\n\u2502\r\n\u2514\u2500\u3010OR\u3011\ud83d\udd29 Accessories & Installation Issues\r\n   \u251c\u2500 Positioner failure (I\/P converter, nozzle-flapper)\r\n   \u251c\u2500 Pneumatic booster\/volume booster failure\r\n   \u251c\u2500 Valve limit switch misalignment\r\n   \u2514\u2500 Mounting bracket loose<\/pre>\r\n\r\n\r\n\r\n
\u26a1 Valve Body\/Actuator Basic Events<\/h2>\r\n\r\n\r\n\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
\u0e23\u0e2b\u0e31\u0e2a<\/th>\r\n\u0e04\u0e33\u0e2d\u0e18\u0e34\u0e1a\u0e32\u0e22\u0e01\u0e34\u0e08\u0e01\u0e23\u0e23\u0e21\u0e42\u0e14\u0e22\u0e04\u0e23\u0e48\u0e32\u0e27 \u0e46<\/th>\r\n\u0e2d\u0e32\u0e01\u0e32\u0e23\u0e17\u0e31\u0e48\u0e27\u0e44\u0e1b<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
\u0e27\u0e351<\/code><\/td>\r\n\u0e01\u0e32\u0e23\u0e2a\u0e36\u0e01\u0e2b\u0e23\u0e2d\u0e2b\u0e23\u0e37\u0e2d\u0e01\u0e32\u0e23\u0e01\u0e31\u0e14\u0e01\u0e23\u0e48\u0e2d\u0e19\u0e02\u0e2d\u0e07\u0e2b\u0e31\u0e27\u0e40\u0e17\u0e35\u0e22\u0e19\/\u0e17\u0e35\u0e48\u0e19\u0e31\u0e48\u0e07\u0e2b\u0e31\u0e27\u0e40\u0e17\u0e35\u0e22\u0e19<\/td>\r\n\u0e01\u0e32\u0e23\u0e23\u0e31\u0e48\u0e27\u0e44\u0e2b\u0e25\u0e20\u0e32\u0e22\u0e43\u0e19, \u0e01\u0e32\u0e23\u0e1b\u0e34\u0e14\u0e2a\u0e19\u0e34\u0e17\u0e44\u0e21\u0e48\u0e14\u0e35, \u0e1b\u0e23\u0e30\u0e2a\u0e34\u0e17\u0e18\u0e34\u0e20\u0e32\u0e1e\u0e01\u0e32\u0e23\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e25\u0e14\u0e25\u0e07<\/td>\r\n<\/tr>\r\n
\u0e27\u0e352<\/code><\/td>\r\n\u0e01\u0e49\u0e32\u0e19\u0e15\u0e34\u0e14\/\u0e2b\u0e31\u0e01<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e44\u0e21\u0e48\u0e02\u0e22\u0e31\u0e1a \u0e01\u0e32\u0e23\u0e15\u0e2d\u0e1a\u0e2a\u0e19\u0e2d\u0e07\u0e25\u0e48\u0e32\u0e0a\u0e49\u0e32 \u0e44\u0e21\u0e48\u0e21\u0e35\u0e01\u0e32\u0e23\u0e40\u0e1b\u0e25\u0e35\u0e48\u0e22\u0e19\u0e41\u0e1b\u0e25\u0e07\u0e2a\u0e31\u0e0d\u0e0d\u0e32\u0e13\u0e1b\u0e49\u0e2d\u0e19\u0e01\u0e25\u0e31\u0e1a<\/td>\r\n<\/tr>\r\n
\u0e27\u0e353<\/code><\/td>\r\n\u0e1a\u0e23\u0e23\u0e08\u0e38\u0e20\u0e31\u0e13\u0e11\u0e4c\u0e23\u0e31\u0e48\u0e27\/\u0e15\u0e34\u0e14\u0e02\u0e31\u0e14<\/td>\r\n\u0e01\u0e32\u0e23\u0e23\u0e31\u0e48\u0e27\u0e0b\u0e36\u0e21\u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01\u0e17\u0e35\u0e48\u0e01\u0e49\u0e32\u0e19 \u0e17\u0e33\u0e43\u0e2b\u0e49\u0e40\u0e01\u0e34\u0e14\u0e41\u0e23\u0e07\u0e40\u0e2a\u0e35\u0e22\u0e14\u0e17\u0e32\u0e19\u0e40\u0e1e\u0e34\u0e48\u0e21\u0e02\u0e36\u0e49\u0e19\u0e41\u0e25\u0e30\u0e40\u0e01\u0e34\u0e14\u0e01\u0e32\u0e23\u0e25\u0e37\u0e48\u0e19\u0e44\u0e16\u0e25\u0e41\u0e1a\u0e1a\u0e15\u0e34\u0e14\u0e46 \u0e02\u0e31\u0e14\u0e46<\/td>\r\n<\/tr>\r\n
\u0e27\u0e354<\/code><\/td>\r\n\u0e01\u0e30\u0e1a\u0e31\u0e07\u0e25\u0e21\u0e09\u0e35\u0e01\u0e02\u0e32\u0e14<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e25\u0e21\u0e44\u0e21\u0e48\u0e02\u0e22\u0e31\u0e1a \u0e04\u0e49\u0e32\u0e07\u0e2d\u0e22\u0e39\u0e48\u0e17\u0e35\u0e48\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e40\u0e14\u0e34\u0e21<\/td>\r\n<\/tr>\r\n
\u0e27\u0e355<\/code><\/td>\r\n\u0e2a\u0e1b\u0e23\u0e34\u0e07\u0e2b\u0e31\u0e01\u0e2b\u0e23\u0e37\u0e2d\u0e2d\u0e48\u0e2d\u0e19\u0e25\u0e49\u0e32<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e44\u0e21\u0e48\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e01\u0e25\u0e31\u0e1a\u0e2a\u0e39\u0e48\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e40\u0e14\u0e34\u0e21\u0e44\u0e14\u0e49 \u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e40\u0e2d\u0e32\u0e15\u0e4c\u0e1e\u0e38\u0e15\u0e44\u0e21\u0e48\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e1e\u0e2d<\/td>\r\n<\/tr>\r\n
\u0e27\u0e356<\/code><\/td>\r\n\u0e21\u0e2d\u0e40\u0e15\u0e2d\u0e23\u0e4c\u0e44\u0e2b\u0e21\u0e49 (\u0e44\u0e1f\u0e1f\u0e49\u0e32)<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e44\u0e1f\u0e1f\u0e49\u0e32\u0e44\u0e21\u0e48\u0e02\u0e22\u0e31\u0e1a \u0e44\u0e21\u0e48\u0e21\u0e35\u0e40\u0e2a\u0e35\u0e22\u0e07 \u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48\u0e23\u0e49\u0e2d\u0e19\u0e40\u0e01\u0e34\u0e19\u0e44\u0e1b<\/td>\r\n<\/tr>\r\n
\u0e27\u0e357<\/code><\/td>\r\n\u0e2a\u0e27\u0e34\u0e15\u0e0a\u0e4c\u0e08\u0e33\u0e01\u0e31\u0e14\u0e17\u0e33\u0e07\u0e32\u0e19\u0e1c\u0e34\u0e14\u0e1b\u0e01\u0e15\u0e34<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e40\u0e1b\u0e34\u0e14-\u0e1b\u0e34\u0e14\u0e44\u0e21\u0e48\u0e2b\u0e22\u0e38\u0e14\u0e17\u0e35\u0e48\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e17\u0e35\u0e48\u0e01\u0e33\u0e2b\u0e19\u0e14 \u0e2b\u0e23\u0e37\u0e2d\u0e21\u0e35\u0e01\u0e32\u0e23\u0e1b\u0e49\u0e2d\u0e19\u0e01\u0e25\u0e31\u0e1a\u0e1c\u0e34\u0e14\u0e1e\u0e25\u0e32\u0e14<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n
\u26a1 Air Supply\/Power\/Signal\/Accessory Basic Events<\/h2>\r\n\r\n\r\n\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
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\u0e40\u0e2d1<\/code><\/td>\r\n\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e44\u0e21\u0e48\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e1e\u0e2d<\/td>\r\n\u0e01\u0e32\u0e23\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e17\u0e35\u0e48\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e0a\u0e49\u0e32 \u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e44\u0e21\u0e48\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e1e\u0e2d \u0e40\u0e1b\u0e34\u0e14\/\u0e1b\u0e34\u0e14\u0e44\u0e21\u0e48\u0e2a\u0e19\u0e34\u0e17<\/td>\r\n<\/tr>\r\n
\u0e40\u0e2d2<\/code><\/td>\r\n\u0e15\u0e31\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e44\u0e2a\u0e49\u0e01\u0e23\u0e2d\u0e07\u0e2d\u0e38\u0e14\u0e15\u0e31\u0e19<\/td>\r\n\u0e1b\u0e23\u0e34\u0e21\u0e32\u0e13\u0e25\u0e21\u0e44\u0e2b\u0e25\u0e25\u0e14\u0e25\u0e07 \u0e01\u0e32\u0e23\u0e15\u0e2d\u0e1a\u0e2a\u0e19\u0e2d\u0e07\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e0a\u0e49\u0e32\u0e25\u0e07<\/td>\r\n<\/tr>\r\n
\u0e40\u0e2d3<\/code><\/td>\r\n\u0e23\u0e30\u0e1a\u0e1a\u0e08\u0e48\u0e32\u0e22\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e1c\u0e2a\u0e21\u0e19\u0e49\u0e33\/\u0e19\u0e49\u0e33\u0e21\u0e31\u0e19<\/td>\r\n\u0e01\u0e32\u0e23\u0e01\u0e31\u0e14\u0e01\u0e23\u0e48\u0e2d\u0e19\u0e02\u0e2d\u0e07\u0e15\u0e31\u0e27\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\/\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c \u0e01\u0e32\u0e23\u0e40\u0e2a\u0e37\u0e48\u0e2d\u0e21\u0e2a\u0e20\u0e32\u0e1e\u0e02\u0e2d\u0e07\u0e44\u0e14\u0e2d\u0e30\u0e41\u0e1f\u0e23\u0e21\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e23\u0e27\u0e14\u0e40\u0e23\u0e47\u0e27<\/td>\r\n<\/tr>\r\n
\u0e40\u0e2d4<\/code><\/td>\r\n\u0e04\u0e27\u0e32\u0e21\u0e25\u0e49\u0e21\u0e40\u0e2b\u0e25\u0e27\u0e02\u0e2d\u0e07\u0e15\u0e31\u0e27\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e44\u0e21\u0e48\u0e44\u0e14\u0e49 \u0e40\u0e01\u0e34\u0e14\u0e01\u0e32\u0e23\u0e2a\u0e31\u0e48\u0e19\u0e2a\u0e30\u0e40\u0e17\u0e37\u0e2d\u0e19 \u0e15\u0e2d\u0e1a\u0e2a\u0e19\u0e2d\u0e07\u0e0a\u0e49\u0e32 \u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48\u0e21\u0e35\u0e01\u0e32\u0e23\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e44\u0e2b\u0e27<\/td>\r\n<\/tr>\r\n
\u0e40\u0e2d5<\/code><\/td>\r\n\u0e04\u0e2d\u0e22\u0e25\u0e4c\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c\u0e44\u0e2b\u0e21\u0e49\/\u0e25\u0e39\u0e01\u0e2a\u0e39\u0e1a\u0e15\u0e34\u0e14<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e40\u0e1b\u0e34\u0e14-\u0e1b\u0e34\u0e14\u0e44\u0e21\u0e48\u0e02\u0e22\u0e31\u0e1a \u0e22\u0e31\u0e07\u0e04\u0e07\u0e2d\u0e22\u0e39\u0e48\u0e43\u0e19\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e40\u0e14\u0e34\u0e21<\/td>\r\n<\/tr>\r\n
\u0e40\u0e2d6<\/code><\/td>\r\n\u0e2a\u0e31\u0e0d\u0e0d\u0e32\u0e13\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e27\u0e07\u0e08\u0e23\u0e40\u0e1b\u0e34\u0e14\/\u0e25\u0e31\u0e14\u0e27\u0e07\u0e08\u0e23<\/td>\r\n\u0e2a\u0e31\u0e0d\u0e0d\u0e32\u0e13\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e2b\u0e32\u0e22\u0e44\u0e1b \u0e04\u0e49\u0e32\u0e07\u0e2d\u0e22\u0e39\u0e48\u0e43\u0e19\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e40\u0e14\u0e34\u0e21 \u0e2b\u0e23\u0e37\u0e2d\u0e25\u0e14\u0e25\u0e07\u0e40\u0e2b\u0e25\u0e37\u0e2d\u0e28\u0e39\u0e19\u0e22\u0e4c<\/td>\r\n<\/tr>\r\n
\u0e40\u0e2d7<\/code><\/td>\r\n\u0e01\u0e32\u0e23\u0e15\u0e01\u0e1c\u0e25\u0e36\u0e01\/\u0e01\u0e32\u0e23\u0e2d\u0e38\u0e14\u0e15\u0e31\u0e19\u0e02\u0e2d\u0e07\u0e15\u0e31\u0e27\u0e01\u0e25\u0e32\u0e07<\/td>\r\n\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e15\u0e34\u0e14\u0e04\u0e49\u0e32\u0e07\u0e43\u0e19\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e01\u0e25\u0e32\u0e07 \u0e02\u0e22\u0e31\u0e1a\u0e22\u0e32\u0e01<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n
\ud83d\udee0\ufe0f Control Valve\/On-Off Valve Troubleshooting Guide (By Priority)<\/h2>\r\n\r\n\r\n\r\n
    \r\n
  1. \u2460 \u0e2a\u0e31\u0e07\u0e40\u0e01\u0e15\u0e2d\u0e32\u0e01\u0e32\u0e23<\/strong> \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e01\u0e33\u0e25\u0e31\u0e07\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e17\u0e35\u0e48\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48? \u0e21\u0e31\u0e19\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e17\u0e35\u0e48\u0e16\u0e36\u0e07\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e17\u0e35\u0e48\u0e15\u0e49\u0e2d\u0e07\u0e01\u0e32\u0e23\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48? \u0e21\u0e35\u0e40\u0e2a\u0e35\u0e22\u0e07\u0e2b\u0e23\u0e37\u0e2d\u0e01\u0e32\u0e23\u0e2a\u0e31\u0e48\u0e19\u0e2a\u0e30\u0e40\u0e17\u0e37\u0e2d\u0e19\u0e1c\u0e34\u0e14\u0e1b\u0e01\u0e15\u0e34\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48? \u0e2a\u0e31\u0e0d\u0e0d\u0e32\u0e13\u0e1b\u0e49\u0e2d\u0e19\u0e01\u0e25\u0e31\u0e1a\u0e21\u0e35\u0e01\u0e32\u0e23\u0e40\u0e1b\u0e25\u0e35\u0e48\u0e22\u0e19\u0e41\u0e1b\u0e25\u0e07\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48?<\/li>\r\n
  2. \u2461 \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e25\u0e21\/\u0e01\u0e33\u0e25\u0e31\u0e07\u0e44\u0e1f<\/strong> \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e25\u0e21: \u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e25\u0e21\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e1e\u0e2d\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48? \u0e15\u0e31\u0e27\u0e01\u0e23\u0e2d\u0e07\u0e41\u0e25\u0e30\u0e15\u0e31\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e2d\u0e38\u0e14\u0e15\u0e31\u0e19\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48? \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e44\u0e1f\u0e1f\u0e49\u0e32: \u0e41\u0e2b\u0e25\u0e48\u0e07\u0e08\u0e48\u0e32\u0e22\u0e44\u0e1f\u0e1b\u0e01\u0e15\u0e34\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48?<\/li>\r\n
  3. \u2462 \u0e2a\u0e31\u0e0d\u0e0d\u0e32\u0e13\u0e17\u0e14\u0e2a\u0e2d\u0e1a<\/strong> \u0e43\u0e0a\u0e49\u0e21\u0e31\u0e25\u0e15\u0e34\u0e21\u0e34\u0e40\u0e15\u0e2d\u0e23\u0e4c\/\u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e01\u0e33\u0e40\u0e19\u0e34\u0e14\u0e2a\u0e31\u0e0d\u0e0d\u0e32\u0e13\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e1b\u0e49\u0e2d\u0e19\u0e01\u0e23\u0e30\u0e41\u0e2a 4-20 \u0e21\u0e34\u0e25\u0e25\u0e34\u0e41\u0e2d\u0e21\u0e1b\u0e4c \u0e41\u0e25\u0e49\u0e27\u0e2a\u0e31\u0e07\u0e40\u0e01\u0e15\u0e27\u0e48\u0e32\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e15\u0e2d\u0e1a\u0e2a\u0e19\u0e2d\u0e07\u0e15\u0e32\u0e21\u0e19\u0e31\u0e49\u0e19\u0e2b\u0e23\u0e37\u0e2d\u0e44\u0e21\u0e48<\/li>\r\n
  4. \u2463 \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e2d\u0e38\u0e1b\u0e01\u0e23\u0e13\u0e4c\u0e40\u0e2a\u0e23\u0e34\u0e21<\/strong> \u0e01\u0e32\u0e23\u0e17\u0e14\u0e2a\u0e2d\u0e1a\u0e15\u0e31\u0e27\u0e40\u0e2d\u0e07\u0e02\u0e2d\u0e07\u0e15\u0e31\u0e27\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07, \u0e01\u0e32\u0e23\u0e17\u0e14\u0e2a\u0e2d\u0e1a\u0e01\u0e32\u0e23\u0e40\u0e1b\u0e25\u0e35\u0e48\u0e22\u0e19\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c, \u0e01\u0e32\u0e23\u0e1b\u0e23\u0e31\u0e1a\u0e2a\u0e27\u0e34\u0e15\u0e0a\u0e4c\u0e08\u0e33\u0e01\u0e31\u0e14<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n
    \ud83d\udca1 Typical Valve Failure Patterns<\/h2>\r\n\r\n\r\n\r\n
      \r\n
    • \u0e44\u0e21\u0e48\u0e21\u0e35\u0e01\u0e32\u0e23\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e44\u0e2b\u0e27<\/strong> \u2192 \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e01\u0e32\u0e23\u0e08\u0e48\u0e32\u0e22\u0e2d\u0e32\u0e01\u0e32\u0e28\/\u0e44\u0e1f\/\u0e2a\u0e31\u0e0d\u0e0d\u0e32\u0e13\/\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c<\/li>\r\n
    • \u0e42\u0e23\u0e04\u0e2b\u0e25\u0e2d\u0e14\u0e40\u0e25\u0e37\u0e2d\u0e14\u0e2a\u0e21\u0e2d\u0e07\u0e1a\u0e32\u0e07\u0e2a\u0e48\u0e27\u0e19<\/strong> \u2192 \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\/\u0e23\u0e30\u0e22\u0e30\u0e01\u0e32\u0e23\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e17\u0e35\u0e48\/\u0e01\u0e32\u0e23\u0e22\u0e36\u0e14\u0e15\u0e34\u0e14<\/li>\r\n
    • \u0e01\u0e32\u0e23\u0e2a\u0e31\u0e48\u0e19\u0e2a\u0e30\u0e40\u0e17\u0e37\u0e2d\u0e19\/\u0e01\u0e32\u0e23\u0e25\u0e37\u0e48\u0e19\u0e44\u0e16\u0e25<\/strong> \u2192 \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e04\u0e48\u0e32\u0e40\u0e01\u0e19\u0e02\u0e2d\u0e07\u0e15\u0e31\u0e27\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\/\u0e41\u0e23\u0e07\u0e40\u0e2a\u0e35\u0e22\u0e14\u0e17\u0e32\u0e19\u0e43\u0e19\u0e01\u0e32\u0e23\u0e1a\u0e23\u0e23\u0e08\u0e38\/\u0e04\u0e27\u0e32\u0e21\u0e40\u0e2a\u0e16\u0e35\u0e22\u0e23\u0e02\u0e2d\u0e07\u0e2d\u0e32\u0e01\u0e32\u0e28<\/li>\r\n
    • \u0e01\u0e32\u0e23\u0e23\u0e31\u0e48\u0e27\u0e44\u0e2b\u0e25\u0e20\u0e32\u0e22\u0e43\u0e19<\/strong> \u2192 \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e2b\u0e31\u0e27\u0e40\u0e17\u0e35\u0e22\u0e19\u0e41\u0e25\u0e30\u0e17\u0e35\u0e48\u0e19\u0e31\u0e48\u0e07<\/li>\r\n
    • \u0e01\u0e32\u0e23\u0e23\u0e31\u0e48\u0e27\u0e44\u0e2b\u0e25\u0e20\u0e32\u0e22\u0e19\u0e2d\u0e01<\/strong> \u2192 \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e0b\u0e35\u0e25\/\u0e1b\u0e30\u0e40\u0e01\u0e47\u0e19<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
      \ud83d\udccb Case Study 1: Pneumatic Control Valve Slow Movement with Stick-Slip<\/h2>\r\n\r\n\r\n\r\n
      \u0e2d\u0e32\u0e01\u0e32\u0e23:<\/strong> \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e44\u0e2d\u0e19\u0e49\u0e33\u0e41\u0e2a\u0e14\u0e07\u0e01\u0e32\u0e23\u0e15\u0e2d\u0e1a\u0e2a\u0e19\u0e2d\u0e07\u0e25\u0e48\u0e32\u0e0a\u0e49\u0e32\u0e2b\u0e25\u0e31\u0e07\u0e08\u0e32\u0e01\u0e21\u0e35\u0e01\u0e32\u0e23\u0e40\u0e1b\u0e25\u0e35\u0e48\u0e22\u0e19\u0e41\u0e1b\u0e25\u0e07\u0e04\u0e48\u0e32\u0e17\u0e35\u0e48\u0e15\u0e31\u0e49\u0e07\u0e44\u0e27\u0e49 \u0e42\u0e14\u0e22\u0e21\u0e35\u0e1e\u0e24\u0e15\u0e34\u0e01\u0e23\u0e23\u0e21\u0e01\u0e32\u0e23\u0e2b\u0e22\u0e38\u0e14\u0e41\u0e25\u0e30\u0e40\u0e23\u0e34\u0e48\u0e21\u0e43\u0e2b\u0e21\u0e48\u0e41\u0e1a\u0e1a\u0e15\u0e34\u0e14\u0e46 \u0e02\u0e31\u0e14\u0e46 \u0e23\u0e30\u0e2b\u0e27\u0e48\u0e32\u0e07\u0e01\u0e32\u0e23\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e17\u0e35\u0e48.<\/p>\r\n\r\n\r\n\r\n
      \u0e02\u0e31\u0e49\u0e19\u0e15\u0e2d\u0e19\u0e01\u0e32\u0e23\u0e41\u0e01\u0e49\u0e44\u0e02\u0e1b\u0e31\u0e0d\u0e2b\u0e32:<\/strong><\/p>\r\n\r\n\r\n\r\n
        \r\n
      1. \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e2d\u0e32\u0e01\u0e32\u0e28: \u0e1b\u0e01\u0e15\u0e34\u0e17\u0e35\u0e48 0.4 MPa (58 psi)<\/li>\r\n
      2. \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e40\u0e2d\u0e32\u0e15\u0e4c\u0e1e\u0e38\u0e15\u0e02\u0e2d\u0e07\u0e15\u0e31\u0e27\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e41\u0e25\u0e49\u0e27 \u0e04\u0e48\u0e32\u0e04\u0e27\u0e32\u0e21\u0e41\u0e1b\u0e23\u0e1c\u0e31\u0e19\u0e2d\u0e22\u0e39\u0e48\u0e43\u0e19\u0e40\u0e01\u0e13\u0e11\u0e4c\u0e1b\u0e01\u0e15\u0e34<\/li>\r\n
      3. \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e44\u0e2a\u0e49\u0e01\u0e23\u0e2d\u0e07\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19 \u0e1e\u0e1a\u0e27\u0e48\u0e32\u0e2d\u0e38\u0e14\u0e15\u0e31\u0e19\u0e14\u0e49\u0e27\u0e22\u0e04\u0e23\u0e32\u0e1a\u0e19\u0e49\u0e33\u0e21\u0e31\u0e19<\/li>\r\n
      4. \u0e40\u0e1b\u0e25\u0e35\u0e48\u0e22\u0e19\u0e0a\u0e34\u0e49\u0e19\u0e2a\u0e48\u0e27\u0e19\u0e41\u0e25\u0e30\u0e17\u0e33\u0e04\u0e27\u0e32\u0e21\u0e2a\u0e30\u0e2d\u0e32\u0e14\u0e16\u0e49\u0e27\u0e22\u0e01\u0e23\u0e2d\u0e07\u0e41\u0e25\u0e49\u0e27 \u0e01\u0e32\u0e23\u0e17\u0e33\u0e07\u0e32\u0e19\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e01\u0e25\u0e31\u0e1a\u0e2a\u0e39\u0e48\u0e1b\u0e01\u0e15\u0e34<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n
        \u2705 Root Cause:<\/strong> \u0e15\u0e31\u0e27\u0e01\u0e23\u0e2d\u0e07\u0e41\u0e25\u0e30\u0e15\u0e31\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e2d\u0e38\u0e14\u0e15\u0e31\u0e19 \u0e17\u0e33\u0e43\u0e2b\u0e49\u0e01\u0e32\u0e23\u0e44\u0e2b\u0e25\u0e40\u0e27\u0e35\u0e22\u0e19\u0e02\u0e2d\u0e07\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e44\u0e21\u0e48\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e1e\u0e2d \ud83d\udccc Preventive Measures:<\/strong> \u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e40\u0e1b\u0e47\u0e19\u0e1b\u0e23\u0e30\u0e08\u0e33 \u0e17\u0e33\u0e04\u0e27\u0e32\u0e21\u0e2a\u0e30\u0e2d\u0e32\u0e14\u0e2b\u0e23\u0e37\u0e2d\u0e40\u0e1b\u0e25\u0e35\u0e48\u0e22\u0e19\u0e44\u0e2a\u0e49\u0e01\u0e23\u0e2d\u0e07 \u0e15\u0e34\u0e14\u0e15\u0e31\u0e49\u0e07\u0e2d\u0e38\u0e1b\u0e01\u0e23\u0e13\u0e4c FRL<\/p>\r\n\r\n\r\n\r\n
        \ud83d\udccb Case Study 2: Solenoid-Operated Valve Cannot Open<\/h2>\r\n\r\n\r\n\r\n
        \u0e2d\u0e32\u0e01\u0e32\u0e23:<\/strong> \u0e23\u0e30\u0e1a\u0e1a DCS \u0e2a\u0e31\u0e48\u0e07\u0e43\u0e2b\u0e49\u0e40\u0e1b\u0e34\u0e14\u0e27\u0e32\u0e25\u0e4c\u0e27 \u0e41\u0e15\u0e48\u0e15\u0e31\u0e27\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e44\u0e21\u0e48\u0e02\u0e22\u0e31\u0e1a \u0e41\u0e25\u0e30\u0e23\u0e30\u0e1a\u0e1a\u0e41\u0e2a\u0e14\u0e07\u0e1c\u0e25\u0e22\u0e31\u0e07\u0e04\u0e07\u0e41\u0e2a\u0e14\u0e07\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07\u0e1b\u0e34\u0e14\u0e2d\u0e22\u0e39\u0e48.<\/p>\r\n\r\n\r\n\r\n
          \r\n
        1. \u0e08\u0e32\u0e01\u0e01\u0e32\u0e23\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e20\u0e32\u0e04\u0e2a\u0e19\u0e32\u0e21: \u0e44\u0e1f\u0e41\u0e2a\u0e14\u0e07\u0e2a\u0e16\u0e32\u0e19\u0e30\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c\u0e15\u0e34\u0e14 \u0e41\u0e15\u0e48\u0e44\u0e21\u0e48\u0e21\u0e35\u0e40\u0e2a\u0e35\u0e22\u0e07\u0e17\u0e48\u0e2d\u0e44\u0e2d\u0e40\u0e2a\u0e35\u0e22<\/li>\r\n
        2. \u0e43\u0e0a\u0e49\u0e44\u0e02\u0e04\u0e27\u0e07\u0e41\u0e15\u0e30\u0e02\u0e14\u0e25\u0e27\u0e14\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c \u0e1e\u0e1a\u0e27\u0e48\u0e32\u0e21\u0e35\u0e41\u0e23\u0e07\u0e41\u0e21\u0e48\u0e40\u0e2b\u0e25\u0e47\u0e01 \u0e41\u0e15\u0e48\u0e25\u0e39\u0e01\u0e2a\u0e39\u0e1a\u0e44\u0e21\u0e48\u0e02\u0e22\u0e31\u0e1a<\/li>\r\n
        3. \u0e16\u0e2d\u0e14\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c\u0e2d\u0e2d\u0e01 \u0e1e\u0e1a\u0e27\u0e48\u0e32\u0e25\u0e39\u0e01\u0e2a\u0e39\u0e1a\u0e15\u0e34\u0e14\u0e02\u0e31\u0e14\u0e14\u0e49\u0e27\u0e22\u0e40\u0e28\u0e29\u0e2a\u0e19\u0e34\u0e21<\/li>\r\n
        4. \u0e17\u0e33\u0e04\u0e27\u0e32\u0e21\u0e2a\u0e30\u0e2d\u0e32\u0e14\u0e25\u0e39\u0e01\u0e2a\u0e39\u0e1a\u0e41\u0e25\u0e30\u0e15\u0e34\u0e14\u0e15\u0e31\u0e49\u0e07\u0e15\u0e31\u0e27\u0e01\u0e23\u0e2d\u0e07\u0e25\u0e48\u0e27\u0e07\u0e2b\u0e19\u0e49\u0e32\u0e41\u0e25\u0e49\u0e27 \u0e01\u0e32\u0e23\u0e17\u0e33\u0e07\u0e32\u0e19\u0e01\u0e25\u0e31\u0e1a\u0e2a\u0e39\u0e48\u0e1b\u0e01\u0e15\u0e34<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n
          \u2705 Root Cause:<\/strong> \u0e2a\u0e19\u0e34\u0e21\u0e43\u0e19\u0e23\u0e30\u0e1a\u0e1a\u0e08\u0e48\u0e32\u0e22\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e17\u0e33\u0e43\u0e2b\u0e49\u0e25\u0e39\u0e01\u0e2a\u0e39\u0e1a\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c\u0e15\u0e34\u0e14\u0e02\u0e31\u0e14 \ud83d\udccc Preventive Measures:<\/strong> \u0e15\u0e34\u0e14\u0e15\u0e31\u0e49\u0e07\u0e41\u0e1c\u0e48\u0e19\u0e01\u0e23\u0e2d\u0e07\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e25\u0e30\u0e40\u0e2d\u0e35\u0e22\u0e14\u0e17\u0e35\u0e48\u0e0a\u0e48\u0e2d\u0e07\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e40\u0e02\u0e49\u0e32 \u0e41\u0e25\u0e30\u0e23\u0e30\u0e1a\u0e32\u0e22\u0e04\u0e27\u0e32\u0e21\u0e0a\u0e37\u0e49\u0e19\u0e2d\u0e2d\u0e01\u0e08\u0e32\u0e01\u0e16\u0e31\u0e07\u0e40\u0e01\u0e47\u0e1a\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e2a\u0e21\u0e48\u0e33\u0e40\u0e2a\u0e21\u0e2d<\/p>\r\n\r\n\r\n\r\n
          \ud83c\udfaf High-Occurrence Minimal Cut Sets (Single Point Failures)<\/h2>\r\n\r\n\r\n\r\n
            \r\n
          • {A1}<\/code> \u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e44\u0e21\u0e48\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e1e\u0e2d<\/strong> \u2192 \u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e44\u0e21\u0e48\u0e40\u0e1e\u0e35\u0e22\u0e07\u0e1e\u0e2d<\/li>\r\n
          • {A2}<\/code> \u0e15\u0e31\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e44\u0e2a\u0e49\u0e01\u0e23\u0e2d\u0e07\u0e2d\u0e38\u0e14\u0e15\u0e31\u0e19<\/strong> \u2192 \u0e01\u0e32\u0e23\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e44\u0e2b\u0e27\u0e0a\u0e49\u0e32\/\u0e25\u0e37\u0e48\u0e19\u0e44\u0e16\u0e25<\/li>\r\n
          • {A4}<\/code> \u0e04\u0e27\u0e32\u0e21\u0e25\u0e49\u0e21\u0e40\u0e2b\u0e25\u0e27\u0e02\u0e2d\u0e07\u0e15\u0e31\u0e27\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07<\/strong> \u2192 \u0e2a\u0e39\u0e0d\u0e40\u0e2a\u0e35\u0e22\u0e01\u0e32\u0e23\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21<\/li>\r\n
          • {A5}<\/code> \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c\u0e04\u0e49\u0e32\u0e07<\/strong> \u2192 \u0e27\u0e32\u0e25\u0e4c\u0e27\u0e40\u0e1b\u0e34\u0e14-\u0e1b\u0e34\u0e14\u0e44\u0e21\u0e48\u0e17\u0e33\u0e07\u0e32\u0e19<\/li>\r\n
          • {V2}<\/code> \u0e01\u0e32\u0e23\u0e1b\u0e31\u0e01\u0e01\u0e49\u0e32\u0e19<\/strong> \u2192 \u0e01\u0e32\u0e23\u0e40\u0e04\u0e25\u0e37\u0e48\u0e2d\u0e19\u0e44\u0e2b\u0e27\u0e17\u0e35\u0e48\u0e44\u0e21\u0e48\u0e40\u0e2a\u0e16\u0e35\u0e22\u0e23<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
            \ud83d\udcc8 Field Failure Rate Reference<\/h2>\r\n\r\n\r\n\r\n
            \u0e2d\u0e49\u0e32\u0e07\u0e2d\u0e34\u0e07\u0e08\u0e32\u0e01\u0e2a\u0e16\u0e34\u0e15\u0e34\u0e20\u0e32\u0e04\u0e2d\u0e38\u0e15\u0e2a\u0e32\u0e2b\u0e01\u0e23\u0e23\u0e21\u0e1b\u0e34\u0e42\u0e15\u0e23\u0e40\u0e04\u0e21\u0e35:<\/p>\r\n\r\n\r\n\r\n
              \r\n
            • \u0e15\u0e31\u0e27\u0e01\u0e23\u0e2d\u0e07\u0e41\u0e25\u0e30\u0e15\u0e31\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e23\u0e07\u0e14\u0e31\u0e19\u0e2d\u0e38\u0e14\u0e15\u0e31\u0e19: 5-15%<\/strong> \u0e40\u0e2b\u0e15\u0e38\u0e01\u0e32\u0e23\u0e13\u0e4c\u0e1b\u0e23\u0e30\u0e08\u0e33\u0e1b\u0e35<\/li>\r\n
            • \u0e04\u0e27\u0e32\u0e21\u0e25\u0e49\u0e21\u0e40\u0e2b\u0e25\u0e27\u0e02\u0e2d\u0e07\u0e2d\u0e38\u0e1b\u0e01\u0e23\u0e13\u0e4c\u0e01\u0e33\u0e2b\u0e19\u0e14\u0e15\u0e33\u0e41\u0e2b\u0e19\u0e48\u0e07: 3-10%<\/strong><\/li>\r\n
            • \u0e04\u0e2d\u0e22\u0e25\u0e4c\u0e42\u0e0b\u0e25\u0e34\u0e19\u0e2d\u0e22\u0e14\u0e4c\/\u0e25\u0e39\u0e01\u0e2a\u0e39\u0e1a\u0e40\u0e2a\u0e35\u0e22\u0e2b\u0e32\u0e22: 2-8%<\/strong><\/li>\r\n
            • \u0e01\u0e32\u0e23\u0e2a\u0e36\u0e01\u0e2b\u0e23\u0e2d\u0e02\u0e2d\u0e07\u0e2b\u0e31\u0e27\u0e40\u0e17\u0e35\u0e22\u0e19\/\u0e17\u0e35\u0e48\u0e19\u0e31\u0e48\u0e07: 5-20%<\/strong> (\u0e02\u0e36\u0e49\u0e19\u0e2d\u0e22\u0e39\u0e48\u0e01\u0e31\u0e1a\u0e2a\u0e20\u0e32\u0e1e\u0e01\u0e32\u0e23\u0e43\u0e2b\u0e49\u0e1a\u0e23\u0e34\u0e01\u0e32\u0e23)<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
              \u0e2b\u0e21\u0e32\u0e22\u0e40\u0e2b\u0e15\u0e38: \u0e2d\u0e31\u0e15\u0e23\u0e32\u0e04\u0e27\u0e32\u0e21\u0e25\u0e49\u0e21\u0e40\u0e2b\u0e25\u0e27\u0e17\u0e35\u0e48\u0e41\u0e17\u0e49\u0e08\u0e23\u0e34\u0e07\u0e44\u0e14\u0e49\u0e23\u0e31\u0e1a\u0e1c\u0e25\u0e01\u0e23\u0e30\u0e17\u0e1a\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e21\u0e32\u0e01\u0e08\u0e32\u0e01\u0e04\u0e27\u0e32\u0e21\u0e2a\u0e30\u0e2d\u0e32\u0e14\u0e02\u0e2d\u0e07\u0e2d\u0e32\u0e01\u0e32\u0e28 \u0e04\u0e27\u0e32\u0e21\u0e2b\u0e22\u0e32\u0e1a\u0e02\u0e2d\u0e07\u0e27\u0e31\u0e2a\u0e14\u0e38 \u0e41\u0e25\u0e30\u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e01\u0e32\u0e23\u0e1a\u0e33\u0e23\u0e38\u0e07\u0e23\u0e31\u0e01\u0e29\u0e32.<\/em><\/p>\r\n\r\n\r\n\r\n
              \ud83d\udcdd Summary<\/h2>\r\n\r\n\r\n\r\n
              \u0e14\u0e49\u0e27\u0e22\u0e01\u0e32\u0e23\u0e27\u0e34\u0e40\u0e04\u0e23\u0e32\u0e30\u0e2b\u0e4c\u0e41\u0e1c\u0e19\u0e1c\u0e31\u0e07\u0e04\u0e27\u0e32\u0e21\u0e1c\u0e34\u0e14\u0e1e\u0e25\u0e32\u0e14 (Fault Tree Analysis: FTA) \u0e40\u0e23\u0e32\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e17\u0e33\u0e04\u0e27\u0e32\u0e21\u0e40\u0e02\u0e49\u0e32\u0e43\u0e08\u0e42\u0e2b\u0e21\u0e14\u0e04\u0e27\u0e32\u0e21\u0e25\u0e49\u0e21\u0e40\u0e2b\u0e25\u0e27\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e41\u0e25\u0e30\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e40\u0e1b\u0e34\u0e14-\u0e1b\u0e34\u0e14\u0e44\u0e14\u0e49\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e40\u0e1b\u0e47\u0e19\u0e23\u0e30\u0e1a\u0e1a \u0e02\u0e49\u0e2d\u0e2a\u0e23\u0e38\u0e1b\u0e17\u0e35\u0e48\u0e2a\u0e33\u0e04\u0e31\u0e0d:<\/p>\r\n\r\n\r\n\r\n
                \r\n
              • \u0e1b\u0e23\u0e30\u0e21\u0e32\u0e13 70% \u0e02\u0e2d\u0e07\u0e04\u0e27\u0e32\u0e21\u0e25\u0e49\u0e21\u0e40\u0e2b\u0e25\u0e27\u0e02\u0e2d\u0e07\u0e27\u0e32\u0e25\u0e4c\u0e27<\/strong> \u0e40\u0e01\u0e35\u0e48\u0e22\u0e27\u0e02\u0e49\u0e2d\u0e07\u0e01\u0e31\u0e1a\u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e41\u0e25\u0e30\u0e2a\u0e20\u0e32\u0e1e\u0e02\u0e2d\u0e07\u0e2d\u0e38\u0e1b\u0e01\u0e23\u0e13\u0e4c\u0e40\u0e2a\u0e23\u0e34\u0e21<\/li>\r\n
              • \u0e01\u0e32\u0e23\u0e1a\u0e33\u0e23\u0e38\u0e07\u0e23\u0e31\u0e01\u0e29\u0e32\u0e15\u0e31\u0e27\u0e04\u0e27\u0e1a\u0e04\u0e38\u0e21\u0e15\u0e31\u0e27\u0e01\u0e23\u0e2d\u0e07\u0e41\u0e25\u0e30\u0e01\u0e32\u0e23\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e04\u0e38\u0e13\u0e20\u0e32\u0e1e\u0e2d\u0e32\u0e01\u0e32\u0e28\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e2a\u0e21\u0e48\u0e33\u0e40\u0e2a\u0e21\u0e2d\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e25\u0e14\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e01\u0e32\u0e23\u0e40\u0e2a\u0e35\u0e22\u0e44\u0e14\u0e49\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e21\u0e32\u0e01<\/li>\r\n
              • \u0e01\u0e32\u0e23\u0e2a\u0e23\u0e49\u0e32\u0e07\u0e10\u0e32\u0e19\u0e02\u0e49\u0e2d\u0e21\u0e39\u0e25\u0e01\u0e23\u0e13\u0e35\u0e04\u0e27\u0e32\u0e21\u0e25\u0e49\u0e21\u0e40\u0e2b\u0e25\u0e27\u0e0a\u0e48\u0e27\u0e22\u0e43\u0e2b\u0e49\u0e2a\u0e32\u0e21\u0e32\u0e23\u0e16\u0e27\u0e34\u0e19\u0e34\u0e08\u0e09\u0e31\u0e22\u0e1b\u0e31\u0e0d\u0e2b\u0e32\u0e17\u0e35\u0e48\u0e04\u0e25\u0e49\u0e32\u0e22\u0e04\u0e25\u0e36\u0e07\u0e01\u0e31\u0e19\u0e44\u0e14\u0e49\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e23\u0e27\u0e14\u0e40\u0e23\u0e47\u0e27<\/li>\r\n
              • \u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e27\u0e32\u0e25\u0e4c\u0e27\u0e17\u0e35\u0e48\u0e2a\u0e33\u0e04\u0e31\u0e0d \u0e04\u0e27\u0e23\u0e1e\u0e34\u0e08\u0e32\u0e23\u0e13\u0e32\u0e01\u0e32\u0e23\u0e15\u0e34\u0e14\u0e15\u0e31\u0e49\u0e07\u0e23\u0e30\u0e1a\u0e1a\u0e2a\u0e33\u0e23\u0e2d\u0e07\u0e2b\u0e23\u0e37\u0e2d\u0e01\u0e32\u0e23\u0e1a\u0e33\u0e23\u0e38\u0e07\u0e23\u0e31\u0e01\u0e29\u0e32\u0e40\u0e0a\u0e34\u0e07\u0e1b\u0e49\u0e2d\u0e07\u0e01\u0e31\u0e19\u0e2d\u0e22\u0e48\u0e32\u0e07\u0e2a\u0e21\u0e48\u0e33\u0e40\u0e2a\u0e21\u0e2d<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
                 <\/p>","protected":false},"excerpt":{"rendered":"
                In industrial automation control systems, control valves and on-off valves are critical final control elements. Valve failures not only impact production efficiency but can also create safety hazards. This article presents a systematic Fault Tree Analysis (FTA) approach for pneumatic control valves, electric control valves, solenoid valves, and pneumatic shut-off valves. \ud83d\udd0d Fault Tree Structure […]<\/p>\n","protected":false},"author":1,"featured_media":8228,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[384,1],"tags":[448,449,450,451],"class_list":["post-8226","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-blogs","tag-control-valve","tag-on-off-valve","tag-fta","tag-fault-tree-analysis"],"acf":[],"yoast_head":"\nControl Valve \/ On-Off Valve Fault Tree Analysis (FTA)<\/title>\n<meta name=\"description\" content=\"Comprehensive fault tree analysis for control valves and on-off valves. Covers pneumatic control valves, electric control valves, solenoid valves, and pneumatic shut-off valve diagnostics, troubleshooting methods, and preventive maintenance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.yunrui-controls.com\/th\/control-valve-on-off-valve-fault-tree-analysis-fta\/\" \/>\n<meta property=\"og:locale\" content=\"th_TH\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Control Valve \/ On-Off Valve Fault Tree Analysis (FTA) Complete Guide\" \/>\n<meta property=\"og:description\" content=\"Comprehensive fault tree analysis for control valves and on-off valves. Covers pneumatic control valves, electric control valves, solenoid valves, and pneumatic shut-off valve diagnostics, troubleshooting methods, and preventive maintenance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.yunrui-controls.com\/th\/control-valve-on-off-valve-fault-tree-analysis-fta\/\" \/>\n<meta property=\"og:site_name\" content=\"Fisher, E+H & Rosemount Supplier from China | 100% Original | YUNRUI\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-22T16:38:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-22T16:38:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/05\/0523.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"462\" \/>\n\t<meta property=\"og:image:height\" content=\"627\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"sales@yunrui-controls.com\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"sales@yunrui-controls.com\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 \u0e19\u0e32\u0e17\u0e35\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/\"},\"author\":{\"name\":\"sales@yunrui-controls.com\",\"@id\":\"https:\/\/www.yunrui-controls.com\/#\/schema\/person\/b9b385704b61e72ea9254fc3b56001af\"},\"headline\":\"Control Valve \/ On-Off Valve Fault Tree Analysis (FTA) Complete Guide\",\"datePublished\":\"2026-05-22T16:38:15+00:00\",\"dateModified\":\"2026-05-22T16:38:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/\"},\"wordCount\":685,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/05\/0523.jpg\",\"keywords\":[\"control valve\",\"on-off valve\",\"FTA\",\"fault tree analysis\"],\"articleSection\":[\"News\",\"Blogs\"],\"inLanguage\":\"th\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/\",\"url\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/\",\"name\":\"Control Valve \/ On-Off Valve Fault Tree Analysis (FTA)\",\"isPartOf\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.yunrui-controls.com\/control-valve-on-off-valve-fault-tree-analysis-fta\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.yunrui-controls.com\/wp-content\/uploads\/2026\/05\/0523.jpg\",\"datePublished\":\"2026-05-22T16:38:15+00:00\",\"dateModified\":\"2026-05-22T16:38:41+00:00\",\"description\":\"Comprehensive fault tree analysis for control valves and on-off valves. 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