进口对夹式超薄型止回阀，超薄型逆止阀慨述 Express with regret

对夹式超薄型止回阀的阀瓣绕转轴作旋转运动,只允许介质向一个方向流动,当介质按规定方向流动时，阀瓣受介质力的作用，被开启;介质逆流时，因阀瓣自重和阀瓣受介质反向力的作用，使阀瓣与阀座的密封面密合而关闭，达到阻止介质逆流的目的 RETZ The disc of the clip type ultra-thin check valve rotates around the rotation axis, allowing the medium to flow in only one direction. When the medium flows in the specified direction, the disc is opened by the medium force; When the medium is countercurrent, the valve clack is closed due to its dead weight and the reverse force of the medium, which makes the sealing surface of the valve clack and the valve seat close, so as to prevent the medium from countercurrent

技术参数 Technical paramete

口径范围：DN50至DN500

工作压力: 10/16、25bar;

阀门材质：碳钢或不锈钢

工作温度：-20℃--425℃

标准与规范 Standards and specifications

1、设计与制造∶API594、API6D、JB/T8937；

2、结构长度∶API594、API6D、DIN3202、JB/T8937；

3、压力-温度等级∶ASMEB16.34、DIN2401、GB/T12224；

4、试验与检验∶API598、GB/T26480；

5、配管法兰∶ JBT74-90、GBT9113、HG20592-20635、SH3406、ASME B16.5、DIN2543-2548、GB/T13402、AP1605、ASME B16.47

进口对夹式超薄型止回阀，超薄型逆止阀性能比较 Performance Comparison of Wafer and Flange Swing Check Valves

结构特点 Structural characteristics

1、结构长度短，其结构长度只有传统法兰止回阀的1/4~1/8 The structure length is short, which is only 1/4~1/8 of the traditional flange check valve

2、体积小、重量轻，其重量只有传统法兰止回阀的1/4~1/20 Small size and light weight, its weight is only 1/4~1/20 of that of traditional flange check valve

3、阀瓣关闭快速，水锤压力小 The valve clack closes quickly and the water hammer pressure is small

4、水平管道或垂直管道均可使用，安装方便 Both horizontal pipe and vertical pipe can be used for convenient installation

5、流道通畅、流体阻力小 Smooth flow passage and small fluid resistance

6、动作灵敏、密封性能好 Sensitive action, good sealing performance

7、阀瓣行程短、关闭冲击力小 Short disc stroke and small closing impact

8、整体结构、简单紧凑、造型美观 Overall structure, simple and compact, beautiful appearance

9、使用寿命长、可靠性高 Long service life and high reliability

流体力学性能/超薄型止回阀的体积流量与压力降关系

Hydrodynamic performance/volume flow and pressure drop relationship of wafer double flap swing check valve

流体力学性能/超薄型止回阀的流体阻力系数

The hydromechanics performance/to clamps the double petal to turn on lathe opens the type check valve the fluid resistance coefficient

流体力学性能/超薄型止回阀流体阻力系数、流量系数及开启压力

The hydromechanics performance/to clamps thedouble petal to turn on lathe opens the type check valve fluid resistance coefficient, the discharge coefficient and the opening pressure