In process engineering, operational continuity depends directly on the reliability of its components. In highly demanding sectors, DIAVAL® Diaphragm Valves have established themselves as essential solutions for projects in the chemical and mining industries. Their advanced design enables the safe handling of aggressive, corrosive and highly abrasive fluids.
To precisely meet every on-site requirement, the DIAVAL® range is divided into two key configurations, each with very specific technical advantages:
DIAVAL® Corrugated Diaphragm Valves (W Series)
This configuration is specially designed for critical applications and the handling of concentrated chemicals. Its main design benefits include:
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- Leak-tight shut-off with less effort: The central vent reduces the diaphragm’s travel, ensuring an immediate leak-tight seal without straining the mechanism.
- Flow regulation capability: Its design allows the handwheel to be positioned at intermediate points for precise flow control.
- Safety with aggressive chemicals.
- Prevent cross-contamination.
- In-line maintenance capability: Thanks to its bolted bonnet, the diaphragm can be replaced without removing the valve from the pipework, minimising downtime.
DIAVAL® Straight-Through Valves (ST Series)
This is the preferred choice when extreme abrasion caused by solids and heavy slurries are a key feature of the production process. It stands out for the following advantages:
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- Zero blockages: When fully open, the body behaves like a continuous straight pipe, preventing pressure drops or the risk of blockages in viscous fluids.
- Less abrasive wear: Solids, sand and sludge flow straight through without striking internal bends directly, extending the equipment’s service life.
- Direct mechanical cleaning: Its completely straight geometry allows internal cleaning systems to be inserted easily.
- Perfect bidirectional flow: It guarantees optimal shut-off performance regardless of the direction of fluid flow.
Optimise your plant with COMEVAL®
Choosing the right diaphragm technology makes the difference between an unplanned shutdown and a profitable process. At COMEVAL VALVE SYSTEMS, we help you integrate the exact model required by your technical infrastructure. Do you have a new project underway? Contact our specialist engineers and receive bespoke advice.
