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Equipment REC-101
FM seat_leak
ISO 14224 mode ELP External leakage - process
Source OPC Ontology KB
Valve Seat Leak
REC-101 · Reciprocating compressor
Related equipment → REC-101
0.75Source conf.
0.85Evidence conf.
ELPISO 14224 mode
1Failure Mechanism
Function:控制进排气时序
Failure cause:介质含固体颗粒冲刷；阀座材料不耐腐蚀；安装不对中导致偏磨
2Source Basis (where this FM comes from)
OPC Ontology KBChina Emergency MgmtQuant benchmark
Source confidence 0.75: this FM is derived from the ontology KB and cross-validated by OPC Ontology KB·China Emergency Mgmt·Quant benchmark.
3Evidence Chain (supporting basis)
Evidence text：None
Evidence conf.：0.85 · Evidence source：API_618
Governing standards (evidence)：ima://7479345845137275/pdf_11035ae55c1b08ddb9e6d8bfbece61fe_09ac5889eb7d93d00ced858558ecc00c7479345845137275 — 空气压缩机RCM维护方案ima://7479345845137275/pdf_11035ae55c1b08ddb9e6d8bfbece61fe_cb149c9742b85d0a68be7323645916837479345845137275 — 空气压缩机FMEA分析报告ima://7479345845137275/pdf_11035ae55c1b08ddb9e6d8bfbece61fe_0c55dbb3622718721698638750915aa27479345845137275 — 空气压缩机大修后开车计划
4Related Real Accidents (traceable to accident cards)
This FM is recorded in 1 real accident investigation(s); tap the report no. to open the corresponding accident lesson card.
5Applicable Standards & Clauses
API 580GB/T 7826-2012ISO 14224:2016SAE JA1011_202411
Standard clause references (16):
GB/T 7826-2012GB/T 27921-2011GB/T 44958-2024GB/T 4888-2008GB/T 29639-2020AQ/T 3034-2022API 581API 580API 571API 754API 689API 755ISO 14224:2016ISO 20815:2018IEC 61511:2016ISO 31000:2018
6Derived Analysis (seeded from this FM)
6/8/3FMEA Sev/Occ/Det
0.52RBI λ
0.55Monitor pdet
4 月Insp. int.
Current tasks:定期测量活塞环间隙 | 更换活塞环
RCFA incident:REC-101 发生阀座泄漏 (Seat Leak)，严重程度 6，后果类型 Safety
7RCM Maintenance Decision (strategy landing)
RTFDesign Modification / Inspection Task
Recommended task材质复检 + 无损检测 + 设计/材质升级整改(RTF); 标定/零点-跨度校验 + SIL Proof test + 阀门行程试验 + 变更管理; 泄漏监测 + 密封/填料定期更换, 螺栓热紧固; 振动频谱分析 + 动平衡 + 激光对中, 状态监测趋势管理; 无损检测(UT/VT/MT/PT), 按 API 581 RBI 风险定级设定检验间隔
Suggested intervalHigh risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Decision basis机理类别=corrosion; instrument; material; seal_leak; vibration
Governing standardsAPI 510API 570API 571API 579API 581API 670API 682API 684ASME VIIIGB/T 21109IEC 61511ISA 84ISO 10816
⚠ This decision is engineering-inferred by RCM logic from the damage mechanism / root cause / failure cause — it is not derived from measured site history. Confirm with the equipment owner and process before execution.
⚠ 本卡技术正文（功能 / 致因 / 损伤机理 / RCFA 叙事）保留中文原文——依可信 AI 红线，自由技术文本不自动机翻、不编造英文译文。UI、设备类型、FM 名、ISO 码、标准号均为英文。