Knife gate valves(Integral seat) are designed to handle the process industries (Ash, pulp&paper, power/utility, Oil and Gas production, Chemical refining)
Seats is metal
Design feature also include a raised face seat with the groove that prevents clogging (As the valve is open the flow cleans the groove)

KGV is offered a variety of actuator including handwheel, chain, gear, electric, air or Hydraulic actuation.