一、进口美标止回阀产品概述

进口美标止回阀，American Standard check valve，是指设计和制造按照美国API或者ANSI 标准，法兰采用CLASS150LB-2500LB的连接方式的止回阀。

美国威盾VTON美标止回阀主要产品有：铸钢美标止回阀，不锈钢美标止回阀，美标法兰止回阀，水用美标止回阀，油用美标止回阀，蒸汽用美标止回阀；磅级止回阀支管两端为焊结结构，焊结坡口可按标准或用户要求制作，美标磅级止回阀适用于火电厂、石油化工、冶金等高温高压的水、蒸气、油品、过热蒸汽的管道上作防止介质回流的装置。

American standard check valve, American Standard check valve， It refers to the design and manufacturing of check valves that comply with American API or ANSI standards, with flanges connected in a Class150LB-2500LB manner.

The main products of American Weidun VTON American standard check valves include: cast steel American standard check valves, stainless steel American standard check valves, American standard flange check valves, American standard check valves for water, American standard check valves for oil, and American standard check valves for steam; The two ends of the branch pipe of the pound level check valve are welded structures, and the welded groove can be made according to standards or user requirements. The American standard pound level check valve is suitable for use as a device to prevent medium backflow in high-temperature and high-pressure water, steam, oil, and superheated steam pipelines in thermal power plants, petrochemicals, metallurgy, and other industries.

二、进口美标止回阀产品参数

1、口径：DN15-3000，1/4-100寸

2、压力：PN0.6-PN320；Class150LB-2500LB；JIS10K-20K

3、温度：-196℃-550℃

4、阀体材质：铸钢，不锈钢，铬钼钢

5、密封面：堆焊铬不锈钢、堆焊硬质合金、铬镍钛不锈钢

6、垫片：钢带石墨参缠绕、聚四氟乙烯

7、连接方式：法兰

8、使用介质：水、蒸汽、油品等

三、进口美标止回阀结构图