NEW NICHWELL NVD-30 21.2cfm Corrosion-Resist Commercial Grade 2-Stage Vacuum Pump
Features
-
- Adjustable gas ballast
- Built-in oil back-flow prevention check valve
- Internal forced oil cycling system
- Integrated cylinder structure
- Exhaust filter with easy-to-change replaceable filter element
- Heavy duty structure and designed for reliable long time operation
- Low noise
- All necessary fittings and filter included for immediate use
- Two-Shift adjustable gas ballast valve satisfies different requirements of condensable vapor(such as water vapor) to be exhausted out of pump in different processes.
- Dual protection of oil anti-sucking back ensures vacuum system from oil pollution when pump stops running and needs to be easily restarted.
- Forced oil circulation system consisted of oil pump and constant pressure oil supply mechanism ensures stable running of the pump.
- Less components are used, easy to maintain and repair.
Standard package
Part description | Quantity |
Part image |
NICHWELL NVD-30 21.2cfm vacuum pump | 1 set | |
KF40 flexible stainless steel vacuum bellow (3 ft) | 1 pc | |
KF40 wing nut flange quick clamp | 2 pcs | |
KF40 flange centering ring | 2 pcs | |
User’s manual | 1 pc |
Product parameter
MODEL | NVD-4 | NVD-8 | NVD-16 | NVD-24 | NVD-30 | NVD-48 | NVD-65 | |
Displacement speed(cfm) | 50Hz | 2.3 | 4.6 | 9.4 | 14.1 | 17.6 | 28.2 | 38.2 |
60Hz | 2.8 | 5.6 | 11.3 | 16.9 | 21.2 | 33.9 | 45.9 | |
Ultimate partial pressure gas ballast closed (Pa) | 5×10-2 | 5×10-2 | 4×10-2 | 4×10-2 | 4×10-2 | 4×10-2 | 4×10-2 | |
Ultimate total pressure gas ballast closed (Pa) | 5×10-1 | 5×10-1 | 4×10-1 | 4×10-1 | 4×10-1 | 4×10-1 | 4×10-1 | |
Ultimate total pressure gas ballast open (Pa) | 3 | 3 | 8×10-1 | 8×10-1 | 8×10-1 | 8×10-1 | 8×10-1 | |
power supply | Single/Three phase | Single/Three phase | Single/Three phase | Single/Three phase | Single/Three phase | Three phase | Three phase | |
Power rating (kW) | 0.4/0.37 | 0.4/0.37 | 0.75/0.55 | 1.1/0.75 | 1.1 | 1.5 | 2.2 | |
Intake and exhaust DN (mm) | KF16/25 | KF16/25 | KF25/40 | KF25/40 | KF25/40 | KF40 | KF40 | |
Oil capacity (L) | 0.6~1.0 | 0.6~1.0 | 0.9~1.5 | 1.3~2.0 | 1.3~2.0 | 3.3~4.5 | 3.3~4.5 | |
Motor speed (rpm) | 50Hz | 1440 | 1440 | 1440 | 1440 | 1440 | 1440 | 1440 |
60Hz | 1720 | 1720 | 1720 | 1720 | 1720 | 1720 | 1720 | |
Ambient temperature (℃) | 5 – 40 | 5 – 40 | 5 – 40 | 5 – 40 | 5 – 40 | 5 – 40 | 5 – 40 | |
Noise level (dB) | ≤56 | ≤56 | ≤58 | ≤58 | ≤58 | ≤62 | ≤62 | |
Net weight (kg) | 19 | 20 | 33 | 35 | 43 | 62 | 65 |
Description Pics
Note:
1.0utlet 2.Junction box cover 3.Junction box
4.Intake port 5.Gas ballast 6.Exhaust port
7.Oil fill plug 8.Oil housing assy 9.Sight glass
10.0il drain Plug 11.Pump feet 12.Trestle
13.Motor
Structure size chart
MODEL | A | B | C | E | G | H | I | J | K | L | DN |
NVD-4 | 18.1 | 5.7 | 8.1 | 4.3 | 5 | 6.1 | 1.8 | 1.8 | 1.3 | / | KF16/25 |
NVD-8 | 18.1 | 5.7 | 8.1 | 4.3 | 5 | 6.1 | 1.8 | 1.8 | 1.3 | / | KF16/25 |
NVD-16 | 20.5 | 7.4 | 10.7 | 5.8 | 6.3 | 6.5 | 2.7 | 2.3 | 1.5 | 11.6 | KF25 |
NVD-24 | 22 | 7.4 | 10.7 | 5.8 | 6.3 | 7.3 | 3.2 | 2.3 | 1.9 | 11.6 | KF25/40 |
NVD-30 | 22 | 7.4 | 10.7 | 5.8 | 6.3 | 7.3 | 3.2 | 2.3 | 1.9 | 11.6 | KF25/40 |
NVD-48 | 28.7 | 9.2 | 14.1 | 7.5 | 7.9 | 8.8 | 6.2 | 2.7 | 2.2 | 15.4 | KF40 |
NVD-65 | 28.7 | 9.2 | 14.1 | 7.5 | 7.9 | 8.8 | 6.2 | 2.7 | 2.2 | 15.4 | KF40 |
Unit:inch |
$3,099.00