WTA截止閥
德國WTA®波紋管密封截止閥提供了等級的防介質外逸散保護，適用于化工流程工藝，其中包括氯堿、光氣和化肥應用。作為通過認證的僅有四家制造廠之一，WTA®產品符合的歐洲氯氣標準，它對氯氣應用的波紋管密封截止閥作出了嚴格的規定。該閥門的設計具有全面的安全密封系統，它是由多層波紋管、兩段式升降密封閥桿與司太立涂層、錐形閥芯和閥座組成。

WTA® was established in 1978 in Ludwigshafen, Germany, a major European Centre for the Chemical Industries, and is currently located at its facilities in Maxdorf, near Ludwigshafen.
At its Maxdorf plant WTA designs, develops and manufactures a full range of high-quality Bellows Sealed Globe Valves, Strainers, Check Valves, Relief Valves, Change-Over Valves and Special Valves meeting stringent specifications required by the Chemical and Petrochemical Industries. 
 
WTA’s Bellows Sealed Globe Valves and its wide range of products are extensively specified and in service around the world.
 
WTA is committed to offering its customers high quality products backed by extensive technical knowledge. Quality is WTA’s foremost core value and is supported by flexibility and reliability.
WTA® Bellows Sealed Globe Valves provide the highest fugitive emission protection for use in chemical processing including Chlor-Alkali, Phosgene, and Fertilizer applications. One of only four manufacturers globally to claim this distinction, WTA® products meet the new Euro Chlor Standard, which defines demanding specifications for Bellows Sealed Globe Valves used for Chlorine applications. The valve’s design features a full safety sealing system enabled by multiple walled bellows, a sealed two-part rising stem, and a stellite-coated, conically shaped piston and seat.