Vacuum Pumps and Vacuum Generators
Single-Stage “Safety” Vacuum Pumps with Dual Inlet Ports
JBS Series

JBS Series Safety Vacuum Generators with Dual Inlet Ports

Note: JBS shown with optional vacuum gauge

The JBS Series vacuum generating system provides dual inlet ports for air supply and blow-off. Once a vacuum is obtained, the check valves hold the vacuum until the system is opened by a compressed air signal to the blow-off port.

Use this system for hold-down applications. Check valves are only effective on non-porous applications in a leak-free system.

Available Options:

Specifications:

Compressed air: 50 micron, filtered, non-lubricated
Operating temp.: -10 to 80°C = 14 to 176°F
Optimum operating pressure: 5 bar = 72.5 psi

Dimensional Specifications:

Nozzle Size D
in.
(mm)
L1
in.
(mm)
L2
in.
(mm)
Air Consumption
SCFM
(l/min.)
Vacuum Flow
SCFM
(l/min.)
Vacuum Level
in Hg
(-mmHg)
12 0.76
(19)
3.22
(81.8)
1.37
(35)
2.10
(59)
1.90
(54)
27
(690)
15 0.76
(19)
3.63
(92.2)
1.37
(35)
3.20
(91)
2.65
(75)
27
(690)
20 0.95
(24)
4.65
(118.1)
1.83
(47)
6.10
(170)
4.50
(130)
27
(690)
25 0.95
(24)
5.22
(132.6)
1.83
(47)
9.20
(260)
7.06
(200)
27
(690)
30 1.34
(34)
6.37
(161.8)
3.81
(97)
14.0
(400)
9.50
(270)
27
(690)
JB
JB Series
12
Nozzle Size
12

15
20
25
30
H
Vacuum Level
H = 90% (Standard)
S
Double Supply Ports and Check Valves
V
Accessories
D = Digital Switch

L = Electronic Switch
M = Electro-Mechanical Switch
N = Pneumatic Switch