Specifications

Selection
ZL112 ZL212
Exhaust characteristics
Flow rate characteristics
Time to reach vacuum
Exhaust characteristics
Flow rate Characteristics
Time to reach vacuum
Supply pressure [MPa] Supply pressure [MPa]
Suction flow rate [l/min (ANR)]
Air consumption [
l/min (ANR)]
150
125
100
75
50
25
Suction flow rate [l/min (ANR)]
Air consumption [
l/min (ANR)]
300
250
200
150
100
50
0
0.1 0.2 0.3 0.4 0.5 0.6 1.0 2.0 3.0 4.0 5.0 6.0
Supply pressure: 0.4MPa Supply pressure: 0.4MPa
Suction flow rate [
l/min(ANR)]
10 20 30 40 50 60 70 80 90 100 110 120
Suction Flow rate [l/min (ANR)]
20 60 100 140 180 220 260 300
Time to reach vacuum [S]
1 2 3 4 5 6 7 8 9 10 11 12
Time to reach vacuum [S]
1 2 3 4 5 6
130
Viewing the graphs
The graphics indicate the time required to reach a vacuum pressure determined by ad-
sorption conditions for work pieces, etc., starting from atmospheric pressure in a 1
l sealed
tank. Approximately 8.8 seconds are necessary to attain a vacuum pressure of –89.3kPa.
Vacuum pressure
Suction flow rate
Pmax
Qmax
P1
Q1
Viewing the graphs
The flow rate characteristics indicate the relationship between the vacuum pressure and
the suction flow rate of the ejector, and show that when the suction flow rate changes the
vacuum pressure also changes. In general, this indicates the relationship at the ejector's
standard operating pressure. In the graph, Pmax indicates the maximum vacuum
pressure, and Qmax indicates the maximum suction flow rate. These are the values that
are published as specifications in catalogs, etc. Changes in vacuum pressure are
explained below.
1. If the ejector's suction port is closed and sealed
tight, the suction flow rate becomes "0" and the
vacuum pressure increases to the maximum
(Pmax).
2. If the suction port is opened and air is allowed to
flow (the air leaks), the suction flow rate
increases and the vacuum pressure decreases.
(the condition of P1 and Q1)
3. If the suction port is opened completely, the
suction flow rate increases to the maximum
(Qmax), while the vacuum pressure then drops
almost to "0" (atmospheric pressure).
When adsorbing work pieces which are permeable or subject to leakage, etc., caution
is required as the vacuum pressure will not be very high.
Vacuum pressure [kPa]
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
Vacuum pressure [kPa]
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
Vacuum pressure [kPa] Vacuum pressure [kPa]
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
Vacuum pressure in tank [kPa]
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
Vacuum pressure in tank [kPa]
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
Vacuum pressure
Suction flow rate
Air consumption
Measurement conditions/Tank capacity: 1l Supply pressure: 0.4MPa
Measurement conditions/Tank capacity: 1
l Supply pressure: 0.4MPa
Vacuum pressure reached–89.3kPa
–80kPa
–40kPa
–66.7kPa
–53.3kPa
–26.7kPa
–13.3kPa
Vacuum pressure
Suction flow rate
Air consumption
Vacuum pressure reached–89.3kPa
–80kPa
–40kPa
–66.7kPa
–53.3kPa
–26.7kPa
–13.3kPa
16
Series ZL
Specific Product Precautions 2
Be sure to read before handling.
Refer to pages 10 through 14 for safety instructions, vacuum equipment precautions and electronic pressure switch
precautions.