Zero Emission, Bellow Sealed
Bellow Seal Gate Valve
Zero fugitive emissions for hazardous and critical service media
When zero leakage to atmosphere is non-negotiable. The multi-ply stainless steel bellows forms a hermetic seal around the stem, eliminating the primary leak path found in conventional packed valves. Ideal for toxic, flammable, or high-value process fluids where even trace emissions are unacceptable.
API 600ISO 9001ISO 15848-1 Class ACE PEDATEX
Technical Specifications
| Size Range | NPS 1/2″ – 24″ / DN 15 – 600 |
| Pressure Rating | Class 150 – 600 / PN 16 – 100 |
| Temperature Range | -29°C to +425°C |
| Body Material | WCB, CF8M, WC9, C5, Duplex SS |
| Seat Material | Stellite® Gr.6, renewable seat |
| End Connection | RF Flanged, Butt-Weld |
| Design Standard | API 600, ASME B16.34 |
| Fugitive Emissions | ISO 15848-1 Class A, TA-Luft |
| Testing Standard | API 598, EN 12266-1 |
Key Features
- Multi-ply Inconel 625 bellows rated for 10,000+ cycles
- Secondary graphite packing as backup safety seal
- OS&Y design with position indicator
- Available with bellows monitoring port for online leak detection
- Fugitive emissions certified to ISO 15848-1 Class A
Industry Applications
Toxic chemical processingHeat transfer fluidsPharmaceutical manufacturingRefinery alkylation unitsHydrogen service
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