Unverified86% confidenceDecision RuleTime unknown
止逆阀分弹簧式和重力翻板式，公共烟道（多户共用）必须装弹簧双向止逆阀防串味串烟；独立烟道装简单翻板阀即可
1
Sources
86%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified公共烟道必须安装带弹簧或翻板的止逆阀（防回流阀），推荐止逆片开启压力低、闭合严密的翻板式；无止逆阀会导致邻居油烟倒灌，尤其高层公共烟道负压大时88% similarUnverified厨房油烟机止逆阀优先选双层活动翻板结构，静止时两片弹簧翻板互相压合密封，比单层挡板止逆效果好，能有效防止邻居返烟窜味82% similarUnverified已装嵌入式或近吸式油烟机大多自带止逆阀，不要再串联加装外置止逆阀，双重阀门会叠加阻力严重削弱排烟能力80% similarUnverified抽气阀选购看止逆阀设计：优先选带独立单向气阀+旋盖双重防漏的，普通拍打式气阀在搬运挤压时容易反弹进气导致回胀75% similarUnverified抽气阀选单向自动阀（带止逆结构）而非手动旋钮阀，单向阀抽气后自动锁气、不回气；手动阀易因螺纹磨损漏气73% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/340806API
curl https://kongchang.com/api/v1/knowledge/claims/340806MCP
get_claim(id=340806)