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Pressure and vacuum generator PGVA

Pressure and vacuum generator PGVA

Product catalog summary

Overview
The document provides a detailed description of the Pressure and Vacuum Generator PGVA by Festo, highlighting its integrated compressor, proportional pressure/vacuum control, and ease of integration and operation. It is designed for flexible use with a 24 V power supply, making it suitable for laboratory processes such as liquid handling, dosing, and pipetting.

Key Features

Integrated compressor and air preparation system including filtering and buffer reservoirs.
Digital interface for easy adjustment of pressure/vacuum levels.
Compact housing integrating compressor, buffer reservoir, switching valves, pressure sensors, and proportional valve.
Variable pressure/vacuum range from -500 mbar to +500 mbar with absolute accuracy of 1% (FS).
Air filtering capability down to 0.01 μm.
Pneumatic connection of 4 mm (QS-4).
Digital output for individual valve actuation with RJ45 Ethernet port for Modbus TCP and RS232 serial port for ASCII.
Configuration tool (GUI) available for user convenience.

System Architecture
The PGVA system architecture includes a silencer, filter, pressure/vacuum reservoir, proportional pressure regulator, and valve control. The system operates in a closed control loop with integrated components to ensure precise pressure and vacuum generation.

Flow Rates
The document provides flow rate data as a function of set pressure and vacuum ranges, illustrating the performance of the PGVA under various conditions. Flow rates are detailed for both pressure and vacuum scenarios, with specific values provided for different mbar levels.

Applications
The PGVA is ideal for pressure-assisted handling of liquids, allowing users to set the required volume for dispensing or aspirating via valve opening time and pressure/vacuum level adjustments. Its compact design and versatile functionality make it a valuable tool in laboratory settings.

Catalog excerpts

Pressure and vacuum generator PGVA Highly versatile Highlights • Integrated compressor • Proportional pressure/ vacuum control • Power supply: 24 V • Flexible in use • Easy to integrate • Easy to operate and configure • Dynamic and precise The decentralised pressure and vacuum generator PGVA only requires a 24 V power supply to provide compressed air for your pressure- or vacuum-assisted solution. This makes it perfect for your laboratory processes, for example when handling liquids during dosing, pipetting medical samples or using a dispense head. Complete solution The PGVA provides you with a complete solution that makes your life easy: the pressure and vacuum generator PGVA integrates the compressor, the air preparation including filtering, the buffer reservoirs and the electronic pressure/vacuum controller. The digital interface makes it incredibly easy for you to adjust the required pressure/ vacuum level. Easy to integrate into your application Festo plug and play: the PGVA couldn’t be easier to integrate into your liquid handling solutions thanks to the defined electric, pneumatic and software interfaces.

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Pressure and vacuum generator PGVA System architecture Technical design Pressure/vacuum generation The pressure and vacuum are generated in a closed control loop with integrated compressor, buffer reservoir, pressure sensors and proportional valve. The digital communication interface lets you preset the pressure level from the controller. Housing Compressor, buffer reservoir, switching valves, pressure sensors, proportional valve and internal controller with digital interface are integrated into a compact housing. Housing (not visible) Pressure-assisted handling of liquids You set the required...

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