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The Farab bellows seal globe valve model GBL16 is designed for controlling the flow of steam, thermal oil, and hot liquids in industrial systems. The valve body is made of ductile iron GGG40 with a nominal pressure rating of PN16, and it features a stainless steel bellows sealing system that prevents external leakage. The disc and seat are precision-machined stainless steel to ensure tight sealing under high temperatures. The stem is also stainless steel, equipped with a secondary graphite packing for additional sealing reliability. Flanged ends comply with EN 1092-2, and dimensions follow DIN 3202 standards. The operating range covers 0–300°C and up to 16 bar pressure.
The Farab GBL16 globe valve utilizes a bellows seal mechanism that eliminates stem leakage under fluctuating pressure and temperature conditions. This design extends service life and minimizes maintenance requirements. The globe-type flow path with vertical disc movement provides precise throttling with minimal pressure loss. A bolted bonnet allows easy internal inspection and maintenance. Each valve undergoes hydrostatic and leakage testing in accordance with API 598 standards to ensure safe operation, long-term durability, and reliable sealing performance in demanding industrial environments.
WEBSITE: Farab bellows seal globe valve model GBL16 Iran
The Farab bellows seal globe valve GBL16 uses a stainless steel multi-layer bellows that ensures zero leakage at a working pressure of 16 bar, making it ideal for hot, corrosive, or volatile media. When purchasing, key factors include body material ductile iron or steel, PN16 flanged connection, temperature resistance up to about 220°C, and the durability of the bellows assembly. For proper installation, the pipeline must be flushed beforehand and the flanges aligned precisely to avoid axial and lateral stresses. Using the correct gasket, tightening bolts in a star pattern, and performing an initial cold pressure test ensure stable operation and long service life for the GBL16 valve.
