Diverter Valves

The housing of a diverter valve is typically constructed from materials such as gray cast iron, stainless steel, or aluminum, selected based on the specific application and process requirements. The rotor is usually made from carbon steel or stainless steel, chosen to match the housing material and ensure long-lasting durability.

These material options allow diverter valves to be tailored for various industries and operating conditions, ranging from standard bulk handling to applications that demand hygienic, corrosion-resistant, or abrasion-resistant features.

The cost of a rotary valve varies depending on several factors, including the valve size, material of construction, application requirements, and any additional components or custom features.

As a general guideline, prices for rotary valves typically range from a few thousand euros for standard models up to several tens of thousands of euros for specialized or heavy-duty designs. Choosing the right configuration ensures the best balance between performance, durability, and investment cost for your specific bulk material handling process.

A rotary valve can function as an ATEX-certified explosion protection system when it is specifically designed to prevent the propagation of an explosion from one part of a plant to another.

To qualify as an explosion isolation device, the valve must demonstrate sufficient pressure resistance and prove that an ignited flame or spark on one product side cannot pass through to the other. This ensures that a potential explosion is contained and isolated within a defined section of the process.

The certification process for ATEX rotary valves is conducted by an independent, notified body, verifying compliance with the EU ATEX Directive and relevant safety standards for explosion protection.

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A rotary valve can only be installed in an Ex zone (explosive atmosphere) if it is proven that the valve itself does not act as an ignition source. Potential ignition sources can include excessive surface temperatures, mechanically generated sparks, or electrostatic discharges.

Depending on the zone classification and category, any foreseeable malfunctions must also be evaluated to ensure safe operation. In certain cases, verification and approval by an independent, notified body may be required to confirm compliance with ATEX directives and explosion protection standards.