进口双重密封波纹管截止阀性能描述 Performance description

波纹管截止阀阀杆波纹管加填料双重密封设计，具有双重保险，使得阀杆处的密封更安全可靠，并符合国际密封标准 The double sealing design of bellows and packing for the valve stem of bellows stop valve has double insurance, which makes the sealing at the valve stem safer and more reliable, and conforms to international sealing standards

阀芯采用锥面密封，密封面不残留杂质，在趋于关闭时，密封面具有自清洁作用。锥形密封面，可以使阀杆轴向力转化为密封力时具有放大作用，密封性能更好 RETZ The valve core is sealed with a conical surface, and the sealing surface is free of impurities. When it tends to close, the sealing surface has a self-cleaning effect. Conical sealing surface can enlarge the axial force of valve stem when it is converted into sealing force, and the sealing performance is better

进口双重密封波纹管截止阀技术要求Applicable Standards

设计标准 Design Rating∶EN12516、DIN3356、ASMEB16.34；

结构长度Face to Face∶EN558、DIN3202、ASMEB16.10；

法兰标准Flanged Ends∶EN1092-1、GB/T9113、DIN2543-2545、ASMEB16.5 ；

检查和试验 Inspection & Testing∶EN12266、DIN 3230、AIP598

规格尺寸 Size : 1/2～12"

公称压力 Nominal pressure：PN16～PN40、CL150～300LB

适应温度 Applicable temperature ：-20～350℃

波纹管的结构

阀芯结构

锥面密封∶密封面不残留杂质∶在趋于关闭时，密封面具有自清洁作用，实现线性密封 Conical sealing: no impurities remain on the sealing surface: when the sealing surface tends to close, the sealing surface has self-cleaning effect to achieve linear sealing

平衡双阀瓣密封∶小阀瓣缓解压力后带动大阀瓣轻松打开retz品牌  Balanced double disc sealing: small disc releases pressure and drives large disc to open easily

平面软密封∶开启和关闭时软密封表面可防止火花产生，适用于气体介质或耐腐蚀要求的工况 Flat soft seal: the soft seal surface can prevent sparks when opening and closing, and is suitable for working conditions with gas medium or corrosion resistance requirements

阀体和内部结构

主要零部件材料 Main parts and materials