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Ported gate valve

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VAAS Industries offers Model 770 ported gate valve. It is a full port bi-directional ported gate valve, and the design utilises twin stainless steel reinforced elastomer seats that are in contact with the gate except during opening or closing. The elastomer seating surfaces are exposed to the media only during short duration of the opening or closing operation. This ensures that the valve can work even in slurry media that tend to coat (and possibly cement or harden) on seats. It is achieved by a simple, direct purge fluid connection to the bottom valve body chamber using the purge ports provided as standard. Since the flow bore is isolated from the bottom body chamber except during opening or closing stroke, purge fluid (typically at about 1 bar higher pressure than the flow media) will automatically flow over the seating surfaces and clean them. The elastomer seats also double as flange gaskets and no additional gaskets are necessary to mount the valves in line. Normal gland packing is provided as a secondary sealing. Valves are offered in ductile iron, steel or stainless steel body construction with stainless steel gate or as per customer specification. VAAS Industries Pvt LtdChennai, Tamil NaduTel: 044-4228 9504, Fax: 044-4262 9501 Mob: 098407 17203 Email: svijay@vaasvalve.comWebsite: www.vaasval.com

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