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德國(guó)KSB凱士比JS1025波紋管截止閥BOA-H，EN-JS1025為德國(guó)標(biāo)準(zhǔn)鑄鐵，對(duì)應(yīng)GGG40同于QT400-15；適用于PN16~PN25壓力，-10~350℃具體免維護(hù)，使用壽命長(zhǎng)等特點(diǎn)。產(chǎn)品應(yīng)用：蒸汽系統(tǒng)，導(dǎo)熱油系統(tǒng)，冷熱水系統(tǒng)等常規(guī)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(guó)KSB凱士比JS1025波紋管截止閥BOA-H結(jié)構(gòu)特點(diǎn)：
閥瓣錐形設(shè)計(jì):閥門(mén)關(guān)閉時(shí)，具有“刮除效應(yīng)”的錐形密封面能自動(dòng)去除表面雜質(zhì)，可以確保閥瓣有可靠的密封和更長(zhǎng)的使用壽命。 
波紋管密封件:波紋管密封截止閥的關(guān)鍵部分是金屬波紋管,通過(guò)自動(dòng)滾焊蓋和閥桿之間的連接，確保波紋管組件無(wú)滲漏。 
可根據(jù)工況的要求提供各種閥瓣設(shè)計(jì)，能夠設(shè)計(jì)為節(jié)流型閥瓣、截止止回型閥瓣、平面軟密封等各種閥瓣設(shè)計(jì)。 
全新的手輪設(shè)計(jì),更符合人體工程學(xué)。 
波紋管+填料的雙重密封設(shè)計(jì)：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(yīng)用更安全、節(jié)能、環(huán)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.