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Flowserve Navalsteam is designed for on-off service. The valves are specially suitable for steam, condensate,hot oil, gas and other non- corrosive media.

CONSTRUCTION The valve has an all- welded body and is fitted with special polymer seats which are long-lasting against frequent operation, impurities and chemicals. A ground and polished stainless steel ball gives easy turning and reliable operation over many years. A floating ball construction is used. Bevel spring washerskeep the seats pressed against the ball to ensure that the valve remains leak-tight regardless of pressure fluctuations. The blow-out proof stem is equipped with graphite box sealing. Flowserve Naval ball valves are manufactured in accordance with European Pressure Equipment Directive 97/23/EY. Flowserve Naval Oy applies Module H as conformity assessment procedure (=full quality assurance) controlled by Det Norske Veritas as notified body. Naval Oy has a certified quality ISO 9001 and certified environmental management system ISO 14001.

CHARACTERISTICS The valve needs no servicing - no adjustment or lubrication- and is easy to install, giving a long working life with low running costs. It is easy to insulate becauseof the long, circular stem housing. The operating lever is detachable and can be re-positioned at 180 degrees. Heavy and unreliable cast components are not used in the construction of the valve body. It is easy to retrofit actuating equipment. Leak tightness is acc. to ISO 5208, rate A.

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