คำอธิบาย
RV-DN 
| model | port size (ฺBSPP) | Max. Pressure ( bar ) | weight (kg) |
| RV-DN6-G1/8 | 1/8″ | 500 | 0.1 |
| RV-DN8-G1/4 | 1/4″ | 500 | 0.2 |
| RV-DN10-G3/8 | 3/8″ | 500 | 0.4 |
| RV-DN12-G1/2 | 1/2″ | 500 | 0.7 |
| RV-DN16-G3/4 | 3/4″ | 500 | 1.2 |
| RV-DN20-G1 | 1″ | 500 | 2 |
| RV-DN25-G1 1/4 | 1 1/4″ | 400 | 3.3 |
| RV-DN30-G1 1/2 | 1 1/2″ | 350 | 4.2 |
| RV-DN40-G2 | 2″ | 350 | 7.2 |
