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The Vogiran dual plate wafer check valve PN16 features a compact design with a ductile iron GGG40 or carbon steel body, rated for a nominal pressure of 16 bar. It incorporates two semi-circular stainless steel plates hinged on a central shaft and held by a torsion spring that allows quick opening during forward flow and rapid closure when flow stops, effectively preventing backflow and water hammer. The operating temperature range is 0°C to 200°C, with internal sealing provided by EPDM or NBR elastomers. Its wafer-style body ensures a lightweight structure and easy installation between EN1092-2 flanges, ideal for applications where space is limited.
Depending on nominal size DN50–DN300, the valve weight varies from 2 to 25 kilograms, with minimal pressure drop across the flow path. The symmetric dual-disc design and central spring ensure silent operation and fast response to flow reversal. The internal surface is epoxy-coated for corrosion protection, extending service life in humid or aggressive environments. The Vogiran PN16 dual plate wafer check valve is manufactured in accordance with API 594 and EN 12334 standards, providing high efficiency, durability, and maintenance-free operation for water, air, steam, and industrial fluid systems.
WEBSITE: Vogiran dual plate wafer check valve PN16 Iran
To maintain a PN16 WEG Iran wafer double-disc check valve, first shut off system flow and fully release internal pressure. Inspect the body and discs periodically for corrosion, cracks, and leakage. Internal seals and springs should be checked every 6–12 months and replaced if necessary. Lubricating the stem and moving parts with high-temperature grease up to 120°C ensures smooth operation and extended valve lifespan. After servicing, operate the valve several times to confirm proper function and zero leakage. Following these procedures ensures safety, efficiency in water and steam pipelines, and reduced maintenance costs.
