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Glandular Spade Valves

GSV blade plate damper design for achieving 100% cross – blade gas isolation without using seal – air fan was originally developed by Metroflex , UK.

Very popular in application such as ESP inlet and outlet, it features a unique dual bulb-sealing system and an open bonnet.

  • Operate successfully in heavy accumulation of dry dust.


  • In closed condition 100% leak tight across blade, ensuring completely safe isolation of the duct.


  • In the unlikely event seas should need replacement, this is done from outside & access is not required to the duct interior.


  • Orientation freedom, available for blade entry as top/bottom/ side or inclined.