ຜະລິດຕະພັນໄດ້ຖືກນໍາໃຊ້ສໍາລັບຄວບຄຸມປະຫລືປິດໄປໄຫຼຂອງ corrosive ຫຼືບໍ່ corrosive ອາຍແກັສນໍ້າແລະຂອງແຫຼວກຶ່ງ.

ປ່ຽງປະຕູໄດ້ຖືກນໍາໃຊ້ຢ່າງກວ້າງຂວາງໃນນ້ໍາປະປາ, ນ້ໍາເສຍ, ການກໍ່ສ້າງ, ນ້ໍາມັນ, ອຸດສາຫະກໍາເຄມີ, ອາຫານ, ຢາປົວພະຍາດ, ສຸຂະພາບ, ພະລັງງານ, ດັ່ງກ່າວ, ໂລຫະ

Check valve is a kind of valve whose opening and closing parts are round valve disc, which can block the reverse flow of medium by its own weight and medium pressure

ປ່ຽງຖືກນໍາໃຊ້ຢ່າງກວ້າງຂວາງໃນ adminstration ເທດສະບານ, ການອະນຸລັກນ້ໍາ, ການປິ່ນປົວ sewage ແລະອື່ນໆ

It is used in gas medium pipeline system of industrial and mining enterprises, municipal administration, environmental protection and other industries, especially suitable for absolute cut off of toxic, harmful and flammable gases.

Air damper is suitable for flue gas, dusty gas etc.