The bellows sealed stop valve adopts a unique bellows seal design, which completely eliminates the problem of valve stem packing seal leakage, ensures the safety of the equipment, and achieves energy saving.
The valve uses a conical valve core instead of a flat valve core, and there is no residual impurities on the sealing surface. When closed, the sealing surface has a self-cleaning function. With the help of the conical valve core, the axial force of the valve stem can be converted into a sealing force with better sealing performance. It is used in steam and condensate, process fluids, hot and cold water, hot oil, compressed air and other gas systems.
Q: What is a bellows seal globe valve?
A: A high-integrity globe valve utilizing a flexible metal bellows to completely seal the valve stem, preventing fugitive emissions.
Q: What makes bellows seal valves superior to conventional packed globe valves?
A: They eliminate steam leakage through the stem packing, reducing energy losses and maintenance adjustments.
Q: What media are best suited for bellows sealed valves?
A: High-temperature steam, superheated water, toxic gases, and hot thermal oils where external leakage is dangerous or costly.
Q: What happens if the internal metal bellows cracks?
A: High-quality valves feature secondary conventional graphite packing as a backup safety seal to prevent catastrophic external leakage.
Solve the energy problems and challenges facing your facilities
OUVI provides products and services to keep your steam system in optimal condition, overcome challenges with customers, achieve safe and reliable operation, save energy, and improve production efficiency.
We can provide steam knowledge, various related calculations, valve and pipeline equipment selection, and overall energy-saving optimization transformation solutions for steam and thermal energy systems based on the user’s process equipment requirements.
