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Piab Pneumatic Conveying Control
Piab pneumatic control units, level detectors, and maintenance solutions ensure safe and reliable operation of vacuum conveying systems. Designed for seamless integration with Piab conveyors, these fully pneumatic solutions provide precise control of conveying cycles, batch handling, and system performance while supporting efficient operation in demanding industrial environments.
For inquiries about vacuum conveying solutions or to place an order, please contact us at +45 70 15 14 14.

Piab Vacuum Conveying Controller PPT/S NC
The Piab Pneumatic Controller PPT/S NC is a fully pneumatic control unit designed to manage all core functions of Piab vacuum conveying systems in demanding industrial environments. Developed as the successor to the PPT/RS 3/2, the controller combines a modern, streamlined design with the proven reliability associated with Piab equipment. Its fully pneumatic construction eliminates ignition sources, making it particularly suitable for applications with dust, airborne particles, or potentially hazardous atmospheres.
Despite being fully pneumatic, the controller offers fast reaction times comparable to electric or hybrid solutions. It controls essential conveyor operations including pump operation, bottom valve actuation, and filter shock cleaning. User-friendly adjustment knobs allow operators to easily set conveying and discharge times, enabling quick process optimisation and improved operational efficiency. The normally closed bottom valve ensures the conveyor remains securely closed during idle conditions, supporting safe and controlled operation across industries such as chemical processing, pharmaceuticals, food and beverage, and additive manufacturing.

Piab Vacuum Conveying VU Level Detector for PPT/S NC
The Piab VU Level Detector PPT/S is a valve unit designed for use with pneumatic vacuum conveying systems where Batch Volume Optimization (BVO) functionality is required. The unit integrates a capacitive sensor that monitors material levels and provides signals to regulate the conveying cycle, ensuring consistent batch handling and improved process control.
Acting as an interface between the pneumatic controller and the sensor system, the unit converts electrical signals into pneumatic signals to maintain accurate and reliable conveyor operation. This solution is particularly suited for applications in food and beverage production and packaging environments where controlled batch conveying and repeatable performance are essential.

Piab Vacuum Conveying Control unit CU 1A/1B/2A
Piab CU control units are fully pneumatic vacuum conveying controllers engineered for highly reliable operation and simplified system validation. The pneumatic design removes all electrical ignition sources while maintaining precise control over conveyor functions, making the units suitable for demanding industrial and regulated environments.
The CU series controls all primary conveyor operations through simple timer adjustments and straightforward installation. Multiple variants are available to match specific conveying requirements, including configurations where the bottom valve remains open or closed during shutdown, pipe emptying functionality between conveying cycles, and support for Batch Volume Optimization. With robust performance and easy configuration, the CU control units provide dependable operation across a wide range of vacuum conveying applications.

Piab Vacuum Conveying VU Level Detector for CU
The Piab VU Level Detector for CU is designed to provide accurate level monitoring and cycle control in pneumatic vacuum conveying systems. Manufactured in durable ASTM 304 stainless steel and rated IP65, the unit is suitable for industrial environments requiring reliable and hygienic operation.
Operating with 24 VDC power and compatible with standard pneumatic feed pressures, the detector monitors material levels to support stable conveying performance and efficient process control. Its robust construction and compact design make it well suited for applications within food and beverage production, logistics, and packaging operations where dependable level detection is critical.

Piab Vacuum Conveying Maintenance Kit piFLOW® Pumps
The Piab Maintenance Kit for piFLOW® pumps is a complete, ready-to-use solution designed for start-up, troubleshooting, and routine maintenance of vacuum conveying systems. The kit enables accurate measurement of vacuum and pressure levels, allowing operators to verify system performance and optimise conveying operation.
Supplied with nylon tubing and an actuating valve for starting and stopping the Piab pump, the kit simplifies system diagnostics and commissioning procedures. Compatible with all piFLOW® i, f, and p conveyors equipped with Piab pumps, the maintenance kit supports efficient servicing and helps ensure reliable long-term operation of vacuum conveying installations.
Food and Pharmaceutical Vacuum Conveying
Reliable, dust-free conveying designed for food and pharma environments.
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Piab Pneumatic Conveying Control FAQ
What is pneumatic conveying control?
Pneumatic conveying control uses compressed air logic instead of electrical components to operate vacuum conveying systems. It controls conveying cycles, valves, and filter cleaning while ensuring safe and reliable system operation.
Why choose a fully pneumatic control system?
Fully pneumatic systems eliminate electrical ignition sources, making them ideal for dusty or potentially explosive environments. They also provide robust operation with minimal maintenance requirements.
What does the PPT/S NC pneumatic controller control?
The PPT/S NC controller manages essential conveyor functions including pump operation, bottom valve actuation, and filter shock cleaning. Adjustable timers allow operators to control conveying and discharge cycles precisely.
When should pneumatic control be used instead of electrical control?
Pneumatic control is preferred in ATEX-related environments, harsh industrial conditions, or applications where electrical validation must be minimized. It offers reliable operation without electronic components.
What is Batch Volume Optimization (BVO)?
Batch Volume Optimization ensures consistent material batch sizes during conveying. Level detectors monitor material levels and automatically regulate conveying cycles to improve process consistency.
What is the function of a VU Level Detector?
A VU Level Detector monitors material levels and converts sensor signals into pneumatic control signals, allowing accurate regulation of conveying cycles and improved batch handling.
What are CU pneumatic control units used for?
CU control units provide reliable pneumatic control of vacuum conveyors through adjustable timers. Different variants support functions such as pipe emptying, bottom valve configuration, and optimized conveying cycles.
Are pneumatic conveying controls suitable for hygienic industries?
Yes. Pneumatic control systems are widely used in food, pharmaceutical, and chemical industries where reliable operation and safe conveying are required.
How does pneumatic control improve system safety?
By removing electrical components, pneumatic systems reduce ignition risks and support safe operation in environments containing dust or airborne particles.
What is the purpose of the piFLOW® maintenance kit?
The maintenance kit enables system start-up, diagnostics, and performance verification by measuring vacuum and pressure levels, helping maintain reliable long-term conveyor operation.

Talk to a Vacuum Conveying Specialist
Klaus A. Rasmussen
Product Manager, Vacuum Conveying
Phone: (+45) 44 83 08 10
E-mail: kar@bondy.dk
