Check valve

‌JIS10K对夹式止回阀SCS13/SCS14‌It is a valve that complies with Japanese Industrial Standards (JIS) and is designed specifically to prevent backflow of pipeline media,是由弹簧开启和关闭阀板，适用于高压、高温及腐蚀性环境。其型号中的“10K”代表压力等级为10K级（约等同于PN16/Class 150），可承受1.6MPa的工作压力；“对夹式”指阀门通过螺栓夹装在管道法兰之间，结构紧凑，节省安装空间。

‌结构与材质‌

• ‌阀体材料‌SCS13 corresponds to ASTM standard CF8 (304 stainless steel), while SCS14 is CF8M (316 stainless steel). The latter has stronger corrosion resistance due to the addition of molybdenum, making it particularly suitable for chloride containing ions or acidic media.
• ‌内部组件‌Valve discs are usually made of stainless steel or hard alloy overlay, and the sealing surface is made of rubber, polytetrafluoroethylene (PTFE) or metal material to ensure tight sealing. The valve disc is quickly closed by spring or gravity assistance, reducing water hammer effect.
• ‌连接方式‌Compliant with JIS B2002/B2212 flange standards, with precise clamp connection dimensions, suitable for JIS10K flange piping systems.

‌特点与优势‌

1. ‌高效防逆流‌Unidirectional flow design, low resistance when the medium flows forward, and automatic locking when it flows backward.
2. ‌耐用性强‌High grade stainless steel material is corrosion-resistant and heat-resistant, extending the service life of valves.
3. ‌维护简便‌The clamp type structure does not require additional flanges, is easy to disassemble and assemble, and is convenient for maintenance or replacement.
4. ‌广泛适用‌Commonly found in industries such as petrochemicals, electricity, water treatment, and shipbuilding, especially suitable for pipeline systems with limited space.

‌应用场景‌
SCS13 is suitable for general liquid and gas media, while SCS14 is used for more corrosive working conditions such as seawater and chemical transportation. Both models need to be selected based on the characteristics of the medium, temperature, and pressure conditions to ensure safe and efficient operation of the system.

It is installed horizontally or vertically in the pipeline system to prevent medium backflow. It has the characteristics of short structure, small volume, and light weight. The valve disc closes quickly, the water hammer pressure is low, the flow channel is unobstructed, and the fluid resistance is small. Quick action and good sealing performance.