Product Overview
The Bellows Seal Gate Valve is designed for systems requiring zero stem leakage, especially for hazardous, toxic, flammable, or valuable media.
Equipped with a multi-layer stainless steel bellows, the valve provides a completely sealed stem structure that prevents external leakage and ensures long-term operational safety.
It is widely used in chemical processing, steam pipelines, petrochemical units, thermal oil systems, and vacuum applications.
Product Advantages
● Ideal for Hazardous Media: Prevents leakage of toxic, flammable, or corrosive fluids.
● Extended Service Life: Bellows design reduces stem wear and minimizes maintenance.
● High Temperature & Steam Resistant: Excellent performance in thermal oil and steam systems.
● ● Energy Saving & Safe Operation: Zero leakage reduces media loss and enhances workplace safety.
● Stable Shut-Off: Wedge gate design ensures reliable sealing over long-term use.
Size Range
● NPS 1″ – 12″ / DN25 – DN300
Pressure Rating
● PN16 / PN25
Standards
● Design Standard: EN 13709 / API 600 / ASME B16.34
● Test Standard: EN 12266 / API 598
● Flange Standard: EN 1092-1 / ASME B16.5
Industry Applications
● Chemical processing systems
● Steam distribution & condensate systems
● Petrochemical units & refinery pipelines
● Thermal oil and high-temperature fluid systems
● Vacuum and negative pressure pipelines
● Hazardous and environmentally sensitive media
Tianjin Dingliu valve Industry Co., Ltd. is a high-tech enterprise specializing in the valve and automation industry.
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