The ability to control, divert, isolate or stop the flow of powders and granules is far more than a supporting operation. It is a strategic element in ensuring process continuity, protecting equipment and optimising overall plant efficiency.
With almost 60 years of experience in bulk solids handling, WAMGROUP provides a comprehensive range of engineered valves designed to meet the flow interception needs of industries worldwide — from heavy-duty applications to highly specialised processes.
Why flow interception is a key factor in plant performance
Every bulk handling system includes critical points where material flow must be accurately managed.
Reliable flow interception solutions enable operators to:
- isolate sections of the plant during maintenance activities
- regulate material transfer between different process stages
- redirect material towards alternative destinations
- prevent unsafe pressure or vacuum conditions
A well-designed flow control system contributes to reduced downtime, improved operational safety and enhanced productivity throughout the entire plant lifecycle.
Butterfly valves: a proven solution for a wide range of industries
At the heart of WAMGROUP’s flow interception portfolio are butterfly valves — a globally recognised solution for controlling the movement of bulk materials.
Widely used in:
- silos
- hoppers
- pneumatic conveying systems
- dosing and feeding lines
WAMGROUP butterfly valves combine:
- compact and lightweight construction
- simple installation and maintenance
- long-term operational reliability
- adaptability to a wide range of applications
From cement and construction materials to food, plastics and chemicals, these valves have become a trusted reference for efficient bulk material handling worldwide.
Slide gate and pinch valves: reliability for demanding applications
For gravity flow applications and robust shut-off requirements, slide gate valves provide a simple, durable and highly effective solution, particularly when installed beneath silos and hoppers.
When handling abrasive, sticky or challenging materials, pinch valves offer an excellent alternative. Their flexible sleeve technology ensures reliable sealing while minimising wear, providing dependable performance even under the most demanding operating conditions.
Smart flow management with diverter and rotary valves
Modern industrial processes require more than simple material shut-off. They demand flexible and dynamic flow management equipment solutions capable of adapting to changing production requirements.
Diverter valves allow materials to be efficiently routed between multiple process lines, supporting:
- greater plant flexibility
- optimised production flows
- efficient multi-line distribution
Rotary valves (airlocks) are essential components in pneumatic conveying systems, combining controlled feeding with air-locking functionality to ensure stable material transfer and efficient system performance.



Engineered solutions for heavy-duty environments
Some applications require exceptional performance under extreme operating conditions, including high temperatures, abrasive materials and continuous operation.
For these environments, WAMGROUP offers specialised solutions such as:
- ball segment valves, designed to provide full-bore flow with minimal pressure loss
- double dump valves, engineered for continuous discharge while maintaining effective isolation
These technologies deliver reliable performance where durability and process continuity are critical.
Safety first: protecting people and equipment
Effective flow management is also a fundamental aspect of industrial safety.
Pressure relief valves protect silos, filters and process equipment from potentially hazardous overpressure or vacuum conditions, helping operators maintain safe working environments and comply with applicable standards.
Expertise across industries
Supported by decades of application experience, WAMGROUP delivers flow interception solutions for a wide variety of industries, including:
- cement
- food and feed
- chemicals
- plastics
- recycling
- renewable energy
This cross-industry expertise allows WAMGROUP to continuously develop innovative solutions based on real operational challenges, helping customers improve efficiency, reliability and sustainability.
Optimising flow control for a more efficient future
Bulk solids flow interception is not a secondary function — it is a fundamental element in achieving safer, more efficient and more sustainable industrial operations.
Through its comprehensive portfolio of valves and integrated solutions, WAMGROUP helps industries worldwide optimise their processes, reduce operational challenges and prepare for the demands of modern manufacturing.
Discover how WAMGROUP can help you improve flow control in your plant. Explore the complete valve range on our new website and contact our specialists to find the right solution for your application.











