H42X升降式底閥
H44H旋啟式止回閥
H42H/W立式升降止回閥
HH49X/H型微阻緩閉蝶式止回閥
QH41X QH42M臥立兩用球面止回閥
H76H/W對夾蝶形止回閥
HH46X、HDH48X微阻緩閉蝶式止回閥
H76H/W美標(biāo)對夾雙瓣式蝶型止回閥
H47X、H47H、HH47X蝶式緩沖止回閥
HH44X微阻球形止回閥
HQ44X HQ45X滑道滾球式止回閥
HQ41X滑道滾球式止回閥
H44X(SFCV)節(jié)能消聲止回閥