| English | Spanish | |
|---|---|---|
| Engineering | ||
| Engineering | backwater valve | válvula de retención |
| Engineering | backwater valve | válvula de contracorriente |
| Construction | ||
| Construction | backwater valve | válvula de remanso |
| Technical | ||
| Technical | backwater valve | válvula de contrapresión |
| Technical | backwater valve | válvula de retención |
| Energy | ||
| Energy | backwater valve | válvula de retención |
