微阻止回阀HH49X-10、微阻止回阀HH49X-10Q、微阻止回阀HH49X-10C、微阻止回阀HH49X-10P、微阻止回阀HH49X-10R

　　微阻止回阀HH49X-16、微阻止回阀HH49X-16Q、微阻止回阀HH49X-16C、微阻止回阀HH49X-16P、微阻止回阀HH49X-16R

　　微阻止回阀HH49X-25、微阻止回阀HH49X-25Q、微阻止回阀HH49X-25C、微阻止回阀HH49X-25P、微阻止回阀HH49X-25R

　　其压力有以下口径:HH49X-25C/P DN15缓闭式止回阀、HH49X-25C/P DN20缓闭式止回阀、HH49X-25C/P DN25缓闭式止回阀、HH49X-25C/PDN32缓闭式止回阀、HH49X-25C/P DN40缓闭式止回阀、HH49X-25C/P DN50缓闭式止回阀、HH49X-25C/P DN65缓闭式止回阀、HH49X-25C/PDN80缓闭式止回阀、HH49X-25C/P DN100缓闭式止回阀、HH49X-25C/P DN125缓闭式止回阀、HH49X-25C/P DN150缓闭式止回阀、HH49X-25C/P DN200缓闭式止回阀、HH49X-25C/P DN250缓闭式止回阀、HH49X-25C/P DN300缓闭式止回阀、HH49X-25C/P DN350缓闭式止回阀、HH49X-25C/P DN400缓闭式止回阀、HH49X-25C/P DN450缓闭式止回阀、HH49X-25C/P DN500缓闭式止回阀、HH49X-25C/P DN600缓闭式止回阀、HH49X-25C/P DN700缓闭式止回阀、HH49X-25C/P DN800缓闭式止回阀；

　　其压力有以下口径:HH49X-16Q/C/P DN15缓闭式止回阀、HH49X-16Q/C/P DN20缓闭式止回阀、HH49X-16Q/C/P DN25缓闭式止回阀、HH49X-16Q/C/PDN32缓闭式止回阀、HH49X-16Q/C/P DN40缓闭式止回阀、HH49X-16Q/C/P DN50缓闭式止回阀、HH49X-16Q/C/P DN65缓闭式止回阀、HH49X-16Q/C/PDN80缓闭式止回阀、HH49X-16Q/C/P DN100缓闭式止回阀、HH49X-16Q/C/P DN125缓闭式止回阀、HH49X-16Q/C/P DN150缓闭式止回阀、HH49X-16Q/C/P DN200缓闭式止回阀、HH49X-16Q/C/P DN250缓闭式止回阀、HH49X-16Q/C/P DN300缓闭式止回阀、HH49X-16Q/C/P DN350缓闭式止回阀、HH49X-16Q/C/P DN400缓闭式止回阀、HH49X-16Q/C/P DN450缓闭式止回阀、HH49X-16Q/C/P DN500缓闭式止回阀、HH49X-16Q/C/P DN600缓闭式止回阀、HH49X-16Q/C/P DN700缓闭式止回阀、HH49X-16Q/C/P DN800缓闭式止回阀；