Low-emission Valves

This valve is found in delayed coker units where multi-port valves are required in high-temperature coking applications. These systems contain sticky residue, solids, and other system contaminants.

These systems cycle many thousands of times per day. Conventional packing systems cannot handle the abuse of the fast cycle speed, combined with the high cycle count. ValvTechnologies’ EcoPack® solution was designed to address this challenge. The EcoPack® seal has been lab-tested at high pressure and line temperature to 450°F for over 500,000 cycles, requiring zero adjustments or maintenance. This equals longer plant operation between maintenance intervals, improved site safety and less emissions from the stem packing.

• Reduced emissions to comply with EPA fugitive emissions requirements
• Guaranteed tight shut-off. Benefit: Enhanced process safety and repeatable sealing allows operation under process excursions
• True metal-to-metal sealing without using secondary elastomeric seals. Benefit: Inherent fire safety
• Exclusive ValvTechnologies’ EcoPack® stem sealing technology. Benefit: Lower emissions and reduced maintenance
• Two piece, split-body design. Benefit: Increased safety and ease of maintenance
• HVOF RiTech® coating technology. Benefit: Extended life even in the most severe conditions, reduced maintenance costs, process reliability, enhanced process safety
• Grafoil® seals. Benefit: Reduced maintenance costs, less downtime
• Double block-and-bleed capability. Benefit: Enhanced process safety
• High-cycling capability. Benefit: Process reliability
• Bi-directional sealing by design. Benefit: Enhanced process safety, lower maintenance, less downtime
• Single-piece anti blow-out stem design. Benefit: Enhanced process safety
• Impervious to high thermal cycling. Benefit: Enhanced process safety
• Adjustment-free stem packing. Benefit: improved site safety and reduced maintenance
• Stem fugitive emissions per ISO 15848-1 Class B. Benefit: Lower emissions and enhanced process safety
• Fire safe certification: API-607. Benefit: Enhanced process safety
• Longer intervals of plant operation between maintenance schedules. Benefit: Increased safety and ease of maintenance
• Enhanced process safety and repeatable sealing. Benefit: Allows operation under process excursions
• Safer plant operation due to less exposure of plant personnel to valves requiring packing adjustment. Benefit: Increased safety
• Longer valve seal life. Benefit: Extended life even in the most severe conditions, reduced maintenance costs, process reliability, enhanced process safety