HH49X型消声缓闭止回阀

蝶形止回阀DH77X-10

对夹式蝶形止回阀

HC44X(SFCV)橡胶瓣止回阀

DH76X对夹式止回阀

H41F46升降式衬氟止回阀

HQ41滑道滚球式止回阀

HQ44X微阻球形止回阀

HQ45X微阻球形止回阀

LH45X限流止回阀

NRVZ*止回阀

HH49X微阻缓闭蝶式止回阀