OFS-needle shut-off nozzle type NVP (pro)
By the controlled closing and opening the flow canal,
the cycle time can be reduced and a more
exactly injection process is possible.
The OFS-needle shut-off nozzle type NVP is used for processing of thermoplastic materials and thermoplastic elastomers.
An integrated pneumatic or hydraulic cylinder activated the shut-off nozzle, whereby the needle opens and closes the flow channel. The needle is activated in both directions. For security, the shut-off nozzle is opened through emerging overpressure.
The nozzle could be also activated by a machine side rod.
Product inquiry 
Technical data sheet
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Further information on the needle shut-off nozzle type NVP (pro)
Size chart
Here you will find a detailed table of dimensions for the OFS-needle shut-off nozzle type NVP.
You can use the graphic on the right to assign the data.
| data and dimensions (mm) | NVPI | NVPII | NPVIII | |
| appr. screw dia | mm | bis 40 | 40-100 | ab 100 |
| max. injection pressure | bar | 3.000 | 3.000 | 3.000 |
| max. injection rate (at PS) | cm³/se | 450 | 1.600 | 3.200 |
| max. back pressure (pneum.) | bar | 850 | 750 | 700 |
| max. nozzle contact force | bar | 1.000 | 1.000 | 1.000 |
| length | A2 | 160 / 174 | 195 / 212 | 292 / 312 |
| nozzlehead dia | C1 | 25 | 30 | 50 |
| nozzlehead length L (standard) | L | 8 / 22 | 8 / 25 | 23 / 43 |
| nozzlehead length L 1 | L 2 | 18 / 32 | 22 / 39 | 41 / 61 |
| nozzlebase dia | C2 | 58 | 72 | 115 |
| hexagon nozzlehead | SW 1 | 32 | 41 | 60 |
| hexagon adapter | SW 2 | 50 | 60 | 80 |
| hexagon connecting nut | SW 3 | 60 | 75 | 115 |
| d max. (cylindrical) | mm | 8 | 10 | 13 |
| connecting pn.-pipe | R | 1/8* | 1/8* | 1/8* |
| connecting hydr.-pipe | R | 1/4* | 1/4* | 1/4* |
| connecting water | R | 1/8* | 1/8* | 1/8* |
View the embedded image gallery online at:
https://www.ofs-filtersysteme.de/en/products/shut-off-nozzles/needle-shut-off-nozzle/type-nvp.html#sigProId73cd29c4f3
https://www.ofs-filtersysteme.de/en/products/shut-off-nozzles/needle-shut-off-nozzle/type-nvp.html#sigProId73cd29c4f3
| Extended head + needle, 2-part (image 1) | |||
| Head dimensions (mm) | |||
| Dimension | NVPI | NVPII | NPVIII |
| SW 1 | 32 | 46 | 60 |
| C 1 | 30 | 40 | 60 |
| L 1 | specify if required | ||
| R | specify if required | ||
| d | specify if required | ||
| Extended head + needle, 2-part, plastic-tight, heated (Fig. 2) | |||
| Head dimensions (mm) | |||
| Maß | NVPI | NVPII | NPVIII |
| SW 1 | 41 | 46 | 65 |
| C 1 | 38 | 45 | 64 |
| L 1 | specify if required | ||
| R | specify if required | ||
| d | specify if required | ||
OFS
