德國KSB凱士比JS1025波紋管截止閥BOA-H，EN-JS1025為德國標準鑄鐵，對應GGG40同于QT400-15；適用于PN16~PN25壓力，-10~350℃具體免維護，使用壽命長等特點。產品應用：蒸汽系統，導熱油系統，冷熱水系統等常規工況。

Germany KSB KSB JS1025 bellows stop valve BOA-H, EN-JS1025 for the German standard cast iron, corresponding to GGG40 and QT400-15; suitable for PN16 ~ PN25 pressure, -10 ~ 350 °C conditions, widely used in steam , Heat transfer oil and other conditions, the specific maintenance-free, long life and other characteristics.

德國KSB凱士比JS1025波紋管截止閥BOA-H結構特點：
閥瓣錐形設計:閥門關閉時，具有“刮除效應”的錐形密封面能自動去除表面雜質，可以確保閥瓣有可靠的密封和更長的使用壽命。 
波紋管密封件:波紋管密封截止閥的關鍵部分是金屬波紋管,通過自動滾焊蓋和閥桿之間的連接，確保波紋管組件無滲漏。 
可根據工況的要求提供各種閥瓣設計，能夠設計為節流型閥瓣、截止止回型閥瓣、平面軟密封等各種閥瓣設計。 
全新的手輪設計,更符合人體工程學。 
波紋管+填料的雙重密封設計：波紋管所形成的金屬屏障能夠防止泄漏，填料在波紋管失效后也能提供密封作用，應用更安全、節能、環保、零泄漏。 
Structural features:
Taper cone design: When the valve is closed, the conical sealing surface with "scratching effect" can automatically remove surface impurities, and ensure that the valve flap has a reliable seal and a longer service life.
Bellows seals: The key part of the bellows seal stop valve is the metal bellows, which ensures that the bellows assembly is not leaking by means of automatic welding between the cover and the valve stem.
Various valve designs can be provided according to the requirements of working conditions. They can be designed for various flap designs such as throttling flaps, stop flaps, and flat soft seals.
The new handwheel design is more ergonomic.
Double sealing design of bellows + packing: The metal barrier formed by the bellows can prevent leakage, and the packing can provide sealing effect after the bellows fails, and the application is safer, energy-saving, environmentally-friendly, and zero-leakage.