Datasheet

Chart 1. Flow-rate Characteristics of Vacuum Generator
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
0 102030405060708090
100 110
Suction flow rate (l/min (ANR))
Vacuum pressure (kPa)
Connection thread size for pad side
Fixed orifice size (mm)
Minimum operating flow rate (l/min (ANR)) Q2
M8
0.5
5.0
Table 1. Relationship between Minimum Operating
Flow Rate and Fixed Orifice Size
Connection thread
symbol for pad side
Thread size
Recommended pad
diameter (mm)
A5 B5 B6 A8 A01 B01 AG1 BG1 AN1 BN1
M5
25 or less 32 to 50
M6 M8 R1/8 G1/8 NPT1/8
Table 1. Recommended Pad Diameter per Product
Vacuum generator side
Name
plate
Fig. 1. Mounting direction
Pad side
Vacuum generator side
Pad side
(Vacuum generator side)
(Pad side)
Enlarged view of name plate
No.0.8
ZP2V-A5-03
G
MP
MADE IN JAPAN
N = 6 (unit)
Q1 = 31 l/min (ANR)
Q2 = 5.0 l/min (ANR)
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0 5 10 15 20 25 30 35
Suction flow rate (l/min (ANR))
Vacuum pressure (kPa)
Chart 2. Selection Example by Min. Operating Flow Rate
q w
e
Example) Vacuum saving valve used: ZP2V-A8-05
From Table 1, Q2 can be calculated as 5.0 l/min (ANR).
N = ≈ 6 (unit)
31 {l/min (ANR)}
5 {l/min (ANR)}
Select the quantity of vacuum saving valves that can be used with one vacuum generator.
Selection Conditions
Workpiece: No leakage and several sizes
Required vacuum pressure: –50 kPa or more of vacuum pressure per vacuum pad
Part number of vacuum saving valve used: ZP2V-A8-05
(Connection thread size for pad side: M8, Fixed orifice size: ø0.5)
The above selection example is based on a general method under the given selection conditions, and may not always be applicable.
A final decision on operating conditions should be made based on test results performed at the responsibility of the customer.
Model Selection
Find the minimum operating flow rate (Q2) and the suction flow rate (Q1) of the
vacuum generator from the specifications table (page 61), and calculate the
quantity (N) of vacuum saving valves that can be used with one vacuum generator.
Check the flow-rate characteristics of the vacuum generator used.
1
2
Calculate the quantity (N) of vacuum saving valves.
From the flow-rate characteristics of the vacuum generator (Chart 1), calculate the
suction flow rate (Q1) of the vacuum generator from the required vacuum pressure.
Vacuum pressure –50 kPa (q w e) =
Suction flow rate (Q1) ≈ 31 l/min (ANR).
Specific Product Precautions
Be sure to read before handling. Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products”
(M-E03-3) for Vacuum Equipment Precautions.
1. The product is not equipped with a vacuum holding function,
and cannot be used for the purpose of holding vacuum.
2. Determine the quantity of products to be used by selection,
and keep the recommended pad diameter per product shown
in Table 1. Also, check the operation with the customer’s
machine well in advance.
3. Do not disassemble the product. Once the product is
disassembled and reassembled, it will not be able to satisfy
the original performance.
4. When piping, do not get the
pad side and vacuum
generator side of the
product the wrong way
round. (Refer to Fig. 1.)
5. For mounting and removing the product, strictly follow the
instructions below.
When mounting and removing the product, use the specified
places shown in page 64 to apply tools. Also, when mounting,
tighten to the specified torque shown in page 64. Excessive
torque or applying a tool to places other than the specified
place can cause damage or loss of original performance.
6. The reduction of the vacuum pressure while the workpiece
is sucked and released depends on the flow-rate
characteristics of the vacuum generator. Check the
flow-rate characteristics of the vacuum generator before
checking the operation with the customer’s machine.
7. When the built-in element of the product gets clogged,
replace the whole product.
8. When verifying the suction using such as a pressure
sensor, check the operation with the customer’s machine
well in advance.
9. If there is leakage between the pad and a workpiece, for
example if the workpiece is permeable, the quantity of
products that can be used with one vacuum generator is
reduced.
Take the leakage between the pad and workpiece into
account and check the operation with the customer’s machine
before using.
Suction flow rate of vacuum generator (Q1)
Minimum operating flow rate (Q2)
Quantity of vacuum saving valves (N) =
Series ZP2VVacuum Saving Valve
62