NV4EVO
Needle Valve (Hard Seat)
Available with end connections in size 1/2″ (1/8” to 1” available on request) and a wide choice in connections of female screwed, male screwed, male to female screwed or socket weld.
Description
Needle valves with hard seat are designed for use on applications requiring complete isolation or throttling of the media. The concial metal tip is press fitted to ensure perfect alignment for a positive bubble tight shut-off.
Applications:
- High line pressure shut-off
- Instrument isolation
- Drain valve
Liquid and vapour service.
| psi | atms. | Ft.Hd.H²0 | in H²0 | Kg/cm² | Meters H²0 | in Hg. | mm.Hg. | Cm.Hg. | bar | mbar | kPa |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0.068 | 2.31 | 27.72 | 0.0703 | 0.704 | 2.043 | 51.884 | 5.188 | 0.069 | 68.947 | 6.895 |
| 14.696 | 1 | 33.659 | 407.513 | 1.033 | 10.351 | 30.019 | 762.284 | 76.284 | 1.0113 | 1013 | 101.325 |
| 0.433 | 0.029 | 1 | 12 | 0.03 | 0.305 | 0.884 | 22.452 | 2.245 | 0.03 | 29.837 | 2.984 |
| 0.036 | 0.0025 | 0.833 | 1 | 0.0025 | 0.025 | 0.074 | 1.871 | 0.187 | 0.0025 | 2.486 | 0.249 |
| 14.223 | 0.968 | 32.867 | 394.408 | 1 | 10.018 | 29.054 | 737.959 | 73.796 | 0.981 | 980.662 | 98.066 |
| 1.422 | 0.097 | 3.287 | 39.37 | 0.099 | 1 | 2.905 | 73.796 | 7.379 | 0.098 | 98.066 | 9.807 |
| 0.489 | 0.033 | 1.131 | 13.575 | 0.034 | 0.345 | 1 | 25.4 | 2.54 | 0.034 | 33.753 | 3.375 |
| 0.019 | 0.0013 | 0.045 | 0.534 | 0.0014 | 0.0136 | 0.039 | 1 | 0.1 | 0.001 | 1.329 | 0.133 |
| 0.193 | 0.0131 | 0.445 | 5.34 | 0.014 | 0.136 | 0.393 | 10 | 1 | 0.0133 | 13.29 | 1.328 |
| 14.503 | 0.0131 | 33.514 | 402.164 | 1.02 | 10.211 | 29.625 | 752.47 | 75.247 | 1 | 1000 | 100 |
| 0.014 | 0.987 | 0.033 | 0.402 | 0.001 | 0.0102 | 0.029 | 0.752 | 0.075 | 0.001 | 1 | 0.1 |
| 0.145 | 0.0009 | 0.335 | 4.021 | 0.01 | 0.102 | 0.296 | 7.525 | 0.0752 | 0.01 | 10 | 1 |
