US SuperVac 5.6 cfm Corrosion-Resist Commercial Grade 2-Stage Vacuum Pump Oven

Description

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NEW NICHWELL NVD-8  5.6 cfm 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
Standard package
Part description
Quantity
Part image
NICHWELL NVD-8 5.6 cfm vacuum pump
1 set
KF25 flexible stainless steel vacuum bellow (3 ft)
1 pc
KF25 wing nut flange quick clamp
2 pcs
KF25 flange centering ring
2 pcs
User's manual
1 pc
Features:
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.
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)
5x10-2
5x10-2
4x10-2
4x10-2
4x10-2
4x10-2
4x10-2
Ultimate total pressure gas ballast closed (Pa)
5x10-1
5x10-1
4x10-1
4x10-1
4x10-1
4x10-1
4x10-1
Ultimate total pressure gas ballast open (Pa)
3
3
8x10-1
8x10-1
8x10-1
8x10-1
8x10-1
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
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
Describe
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
Pumping speed curve
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
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