HH46x、HDH48x、HH49X消声缓闭止回阀HH46x、HDH48x、HH49X

HH47X缓闭蝶形止回阀HH47X

H76对夹蝶式止回阀H76

H44X（SFCV）橡胶瓣止回阀H44X（SFCV）

H42立式止回阀H42

H41T,H44T铸铁止回阀H41T,H44T

J11W锻钢止回阀J11W

H44美标止回阀H44

HC41X消声止回阀HC41X

H14W不锈钢内螺纹止回阀H14W

H74H对夹单瓣旋启式止回阀H74H

H44H旋启式止回阀H44H