Knife Gate Valve Seat Material: Typically stainless steel (such as 304, 316) or carbide.
Advantages: High temperature resistance, wear resistance, and corrosion resistance.
Disadvantages: Slightly inferior sealing performance compared to soft seals, with potential for leakage.
Applications: High-temperature media and highly abrasive granular media (such as slurry, coal powder, and ash).
Knife gate Valve Seat Material: Typically, the gate or valve body is inlaid with an elastic material such as rubber (such as NBR, EPDM), polytetrafluoroethylene (PTFE), or ultra-high molecular weight polyethylene (UHMW-PE).
Advantages: Zero leakage, excellent sealing performance.
Disadvantages: Not resistant to high temperatures, susceptible to corrosion and abrasion by certain chemical media.
Applications: Normal temperature applications such as clean water, sewage, and paper pulp, where sealing requirements are stringent.
