主要性能 Main performance

(暗杆式)进口蒸汽波纹管截止阀采用锥面密封，不残留杂质，在趋于关闭时，具自清洁作用，使阀杆轴向力转化为密封力时具有放大作用。在同样的压力下可获得更大的密封比压。关闭更轻松，密封性能更佳 RETZ imported Non rising stem steam bellows stop valve is sealed with a conical surface, without residual impurities. When it tends to close, it has a self-cleaning effect, and has an amplification effect when the axial force of the valve stem is converted into the sealing force. A larger seal specific pressure can be obtained under the same pressure. Easier closing and better sealing performance

设计标准∶DIN3356  Design standard: DIN3356

结构长度∶DIN3202  Structure length: DIN3202

连接法兰∶DIN2543-2545  Connecting flange: din2543-2545

试验和检验 ∶ DIN 3230 Test and inspection: DIN 3230

规格尺寸：F1/2-12"(法兰连接) Specification and size: F1 / 2-12 "(flange connection)

公称压力：16-40Bar Nominal pressure: 16-40bar

介质温度：-29-350℃  Medium temperature: - 29-350 ℃

密封结构 Sealing structure

波纹管的结构 Structure of bellows

(暗杆式)进口蒸汽波纹管截止阀 特点∶ Performance characteristics

波纹管防护型空间设计∶波纹管被密封在密闭的空间里，不受介质、压力、温度的直接影响 Bellows protective space design: the bellows is sealed in a closed space, not directly affected by the medium, pressure and temperature

阀瓣采用锥形设计，密封面与介质成流线形，密封性能更好 The valve disc adopts conical design, and the sealing surface is linear with the medium, with better sealing performance

双重的密封设计（波纹管+填料）若波纹管不幸失效，阀杆填料也会避免泄漏 RETZ Double sealing design (bellows + packing) if the bellows fails unfortunately, the stem packing will also avoid leakage

阀盖上自带有加脂接头，可直接对阀杆、螺母和轴套进行润滑  The valve cover is equipped with a greasing joint, which can directly lubricate the valve rod, nut and shaft sleeve

(暗杆式)进口蒸汽波纹管截止阀 主要零件材料 Main parts and materials

安装示意图 Installation diagram

应用行业 Application industry