Product Overview
A rising stem hard seal gate valve is a seal between metals, with the sealing ball and seat made of metal. The processing accuracy and craftsmanship are relatively difficult. Soft seal is a seal between metal and non-metal, such as nylon tetrafluoroethylene, manufactured to the same standard.
The difference between a rising stem hard seal gate valve and a hard seal gate valve. Hard seal is a seal between metals, where the sealing ball and valve seat are both made of metal. The processing accuracy and craftsmanship are relatively difficult. Soft seal is a seal between metal and non-metal, such as nylon tetrafluoroethylene, manufactured to the same standard.