Knife gate valve opening and closing pieces are, ram direction of motion perpendicular to the direction of the fluid, manual knife gate valve can be fully open and fully closed, can not be adjusted and cut expenditure. There are two gate sealing surface, the most common mode of gate valve sealing surface to form two wedge, wedge angle with the valve parameters vary, usually 50, wedge type knife gate valve can be made into a whole , called the rigid gate;

Can also be made ??to produce small deformation gate in order to improve its process, make up the sealing surface angle deviations arising during processing, this gate is called the flexible gate knife gate valve closed, the sealing surface can only rely on Media pressure to seal, in which the medium pressure to ram pressure to the other side of the sealing surface of the seat to ensure the sealing surface of the seal, which is self-sealing.
Most of the knife gate valve is sealed by force, that the valve is closed, to rely on external pressure to force the gate to the seat, to ensure the sealing surface of the seal.

Manual knife gate valve, Knife Gate Valve, manual single folder type knife gate valve Nominal pressure main performance specifications (mpa) Shell test (mpa) Seal Test (mpa) working temperature for media 1.0 1.6 1.5 2.4 1.1 1.8