HH49X型HH49X微阻缓闭止回阀

HH44X型HH44X微阻缓闭止回阀

HDH47X型HDH47X蝶式缓冲止回阀

HQ44X型HQ44X微阻球型止回阀

HQ45X型HQ45X微阻球型止回阀

HC41X型HC41X消声止回阀

H76X型H76X对夹式蝶形止回阀

HQ41X型HQ41X无磨损球形止回阀┃滚球式止回阀

HC42X（DRVZ）型HC42X（DRVZ）*止回阀

CVKR型CVKR*式止回阀