คำอธิบาย
NDV 
| model | port size (BSPP) | Max. Pressure ( bar ) | weight (kg) |
| NDV-DN6-G1/8 | 1/8″ | 350 | 0.12 |
| NDV-DN8-G1/4 | 1/4″ | 350 | 0.25 |
| NDV-DN10-G3/8 | 3/8″ | 350 | 0.4 |
| NDV-DN12-G1/2 | 1/2″ | 350 | 0.6 |
| NDV-DN16-G3/4 | 3/4″ | 350 | 1.1 |
| NDV-DN20-G1 | 1″ | 350 | 2.4 |
| NDV-DN25-G1 1/4 | 1 1/4″ | 350 | 2.8 |
| NDV-DN30-G1 1/2 | 1 1/2″ | 350 | 3.5 |
| NDV-DN40-G2 | 2″ | 350 | 6.24 |
