Bürkert Type 2031 Pneumatic Diaphragm Valve

The Bürkert Type 2031 is a pneumatically operated 2/2-way diaphragm valve built for hygienic processes and aggressive media. A piston actuator drives a flexible diaphragm that isolates the actuator from the process fluid, keeping the flow path clean and protecting internal components from contact with the media. This makes the valve a dependable choice where purity and reliable shut-off matter.

The valve operates in a normally closed control function, opening on pneumatic signal and returning to the closed position when air pressure is removed. The stainless steel body pairs with an elastomer diaphragm to handle a wide range of process conditions, from ultra-pure water through to acids and alkalis. Hygienic surface finishes and electropolishing options support cleaning regimes such as CIP and SIP, while material certification to EN 10204 is available where documented traceability is required.

Designed with process integrity in mind, the Type 2031 delivers smooth, repeatable actuation across demanding duty cycles. The compact actuator and diaphragm arrangement fits neatly into skids and process lines, and ATEX and IECEx variants extend its use into potentially explosive areas.

Applications:

• Pharmaceutical, purified water, and Water for Injection systems
• CIP and SIP processes
• Bioprocess and biotech equipment
• Food and beverage, dairy, breweries, and hygienic transfer lines
• Chemical processing, including acids, alkalis, and corrosive media
• Process dosing systems
• Ultra-pure water, process water, and filtration skids

Summary:

• Bürkert Type 2031 pneumatically operated 2/2-way diaphragm valve
• Piston actuator with flexible diaphragm that isolates the actuator from the process fluid
• Normally closed control function
• Stainless steel body with elastomer diaphragm
• Suited to hygienic applications and aggressive chemicals
• Hygienic surface finishes and electropolishing options for CIP and SIP
• EN 10204 material certification available
• ATEX and IECEx variants available for potentially explosive areas
• Used across pharma, food and beverage, biotech, chemical processing, and water treatment