The ValvEx® is designed to prevent flame and pressure propagation through pipes, ducts or
conveying lines to interconnected process equipment or operating locations. Several years of
dedicated research has resulted in unique insights into mechanisms of explosion propagation and
efficiency of passive explosion isolation.
The ValvEx® consists of a heavy duty coated steel body containing a high strength, formed
stainless steel flap. Air flow will open the flap to allow normal process conveyance conditions.
When an explosion occurs in the adjacent vessel, the flow will reverse causing the flap to close
onto its field replaceable seal, stopping explosion pressure and flame propagation.
FEATURES AND BENEFITS
• High Efficiency - minimal dust drop out, aerodynamic design
• Minimal pressure drop
• Integrated seal
• Easy to maintain
• Compact, small installation dimensions
• Designed for low cost of ownership
• ATEX certified
• NFPA 69 compliant
• Formed stainless steel flap (high strength)