A total containment solution is available with the installation of a Vogt Bellow Seal Gate Valve, constructed to positively eliminate any leak paths at the bonnet joint and packing.
The valve, with its bellows and seal-welded construction, totally confines the flow media within the valve pressure boundary. The valve packing is totally isolated by the bellows from the flowing medium and serves in a back-up role only.
• Fully rated class 800 and 1500
• Zero environmental leakage
• High-strength multi-ply bellows in 321SS and other materials
• Minimum pressure boundary welds
• Flexible graphite packing API622 certified
• Welded bonnet
• Outside screw and yoke
• Bolted gland
• API602, ASME B16.34
