一、进口对夹式止回阀概述

进口对夹式止回阀（Wafer check valve），也叫对夹式逆流阀、对夹式逆止阀、对夹式背压阀、对夹式单向阀，安装在管路系统，其主要作用是防止介质倒流，止回阀是一种依靠介质压力开启和关闭的自动阀门。

传统的止回阀体积笨大，流体阻力大，阀门关闭时水锤压力高，安装、维修难，使用寿命短。美国威盾VTON针对传统结构止回阀存在的问题，以美国API标准和德国DIN标准为依据，研制开发了对夹单瓣止回阀、对夹双瓣止回阀、对夹式升降式止回阀、凸耳对夹式止回阀系列产品，体积小、重量轻，使用寿命长；经石化、冶金、电力、轻工、食品等行业的企业和设备配套厂家的多年使用，效果良好，深受用户好评。

Wafer check valve, also known as wafer back flow valve, wafer back check valve, wafer back pressure valve, or wafer check valve, is installed in pipeline systems. Its main function is to prevent medium backflow. Check valve is an automatic valve that relies on medium pressure to open and close.

Traditional check valves have bulky volume, high fluid resistance, high water hammer pressure when the valve is closed, difficult installation and maintenance, and short service life. VTON has developed a series of products, including single disc check valves, double disc check valves, lift check valves, and lug clamp check valves, based on American API standards and German DIN standards, to address the problems of traditional check valves. These products are small in size, light in weight, and have a long service life; After years of use by enterprises and equipment supporting manufacturers in industries such as petrochemicals, metallurgy, power, light industry, and food, the results have been good and highly praised by users.

二、进口对夹式止回阀性能参数

三、进口对夹式止回阀产品特点

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；

2、体积小、重量轻，其重量只有传统法兰止回阀的1/4～1/20；

3、对夹式止回阀阀瓣关闭快速，水锤压力小；

4、水平管道或垂直管道均可使用，机构长度短，体积小，重量轻，安装方便；

5、对夹止回阀流道通畅、流体阻力小；

6、对夹式止回阀动作灵敏、密封性能好；

7、阀瓣行程短、关阀冲击力小；

8、整体结构、简单紧凑、造型美观；

9、使用寿命长、可靠性高。

1. The structural length is short, which is only 1/4 to 1/8 of that of traditional flange check valves;

2. Small in size and light in weight, its weight is only 1/4 to 1/20 of that of traditional flange check valves;

3. The clamp type check valve disc closes quickly and the water hammer pressure is low;

4. Both horizontal and vertical pipelines can be used, with short length, small volume, light weight, and convenient installation;

5. The flow path of the clamp check valve is unobstructed and the fluid resistance is small;

6. The clamp type check valve is sensitive to action and has good sealing performance;

7. Short valve disc stroke and low closing impact force;

8. Overall structure, simple and compact, beautiful appearance;

9. Long service life and high reliability.

四、进口对夹式止回阀外形图