Model NVK
(1) Since this pump is a water ring type, there are no problems if the intake air contains steam or water droplets.(2) Compactly designed for being incorporated into vacuum equipment.
(3) Good durability with both-end support bearings.
(4) The rotor and port plate are made of CAC406, which prevents binding because of rust.
| ■Standard Specifications | |||
| Model | 40NVK 3.7 | 40NVK 5.5、50NVK 7.5 | |
| Liquid | Air : －15℃～50℃ | Air : －15℃～50℃ | |
|
MAX. vacuum pressure (at rated condition) |
－93.3kPa｛－700㎜Hg｝ （Feed water at 15℃） | ||
| MAX. Vacuum pressure | －97.3kPa｛－730㎜Hg｝*1（Feed water at 15℃） | ||
| Construction | Type | Water ring type | Water ring type |
| Shaft seal | Mechanical seal | Gland packing | |
| Bearing | Sealed ball bearing | Sealed ball bearing | |
| Flange | Special flange | JIS10K | |
| Materials | Casing | FC200 | FC200 |
| Rotor | CAC406 | CAC406 | |
| Port plate | CAC406 | CAC406 | |
| Shaft | SUS403 | SUS403 | |
| *1. Continuous operation at the maximum vacuum pressure is not possible. For guidelines for the continuous operation time, please contact us. | |||
| ■Optional Specifications | |||
| Material |
Main parts: Stainless steel |
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