1) гидравлический затвор, сифон
2) затвор-ревизия (санитарных приборов)
3) ловушка; сепаратор, отделитель; конденсатоотводчик
- air trap
- antisiphon trap
- automatic return trap
- bag trap
- bath trap
- bed-load trap
- bottle trap
- bucket trap
- building trap
- circular trap
- deep-seal trap
- drum trap
- flat trap
- float steam trap
- gasoline trap
- gravel trap
- grease trap
- half S trap
- house trap
- impulse steam trap
- intercepting trap
- inverted bucket trap
- inverted steam trap
- main trap
- mud trap
- nonsiphon trap
- open bucket steam trap
- P-trap
- petrol trap
- plumbing trap
- reseal trap
- running trap
- S-trap
- sand trap
- scale trap
- sewer trap
- siphon trap
- sound trap
- steam trap
- thermostatic steam trap
- waste trap
- wave trap
- yard trap