Page 52 - Schmalz - Vacuum Components

2_Kap_VT_EN_2016_VT_KAT 18.02.16 09:36 Seite 52
PA01019111_inh_EN.pdf
Vacuum Knowledge
System Design – Calculation Example
PA01019111_inh_EN.pdf PA01019111_inh_EN.pdf

Schmalz - The Company Calculation of the nominal size of the valve:
V =V
VE
V
3
V = Nominal flow of valve [m /h, l/min]
V VE
V = Existing suction rate of vacuum generator
Vacuum Knowledge [m /h, l/min]
3
3
Example: V = 140 l/min = 8.4 m /h
V
Vacuum Suction Cups For this example we choose:

The used compact ejector of type SCPi 20 is equipped with solenoid valves which eliminates the need for separate valves.
3
A solenoid valve of type EMV-10 with a nominal flow of 20 m /h would also be sufficient for the function Suction ON/OFF.
Special Grippers Vacuum Switch Selection

Vacuum Grip- ping Systems Vacuum switches and manometers are usually selected based on
the existing requirements regarding functionality and switching
frequency.

The following functions are available:
Mounting Elements • Adjustable switching point
• Hysteresis fixed or adjustable
• Signal output digital and/or analog
• Function LED
• Display with input keyboard
Vacuum Generators • Vacuum connection M5-IG, M8-AG, flange or tube insert
• Supply and signal connection with cable or M8 plug
The available versions with their respective technical data are
explained in the chapter “Switches and System Monitoring”.
Valve Technology For this example we choose:

The used compact ejector of the type SCPi 20 is equipped with an integrated system monitoring (digital output signals). There is no
Switches and Monitoring
need for an additional vacuum switch.

Filters and Connections

Services

Contact

Index of Products

52

PA01019111_inh_EN.pdf