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This PTFE Lined Check Valve is a valve in which the opening and closing member is a circular flap and acts on its own weight and medium pressure to block the flow of the medium. When the inlet pressure is greater than the sum of its weight and flow resistance, the valve is opened. Conversely, the valve closes when the media is reversed. The PTFE Lined Check Valve is inclined and rotatable about the shaft, and operates in a similar manner to the lift check valve. Due to the high performance, it can be an ideal facility used as bottom valves for pumping devices to prevent backflow of water. In addition, it can also be used to supply a line in which the pressure may rise to an auxiliary system that exceeds the system pressure.
This PTFE Lined Check Valve is to allow only the medium to flow in one direction and to prevent flow in the opposite direction. Usually, it is automatically operated, and the valve flap is opened by the fluid pressure flowing in one direction. When the fluid flows in the opposite direction, the fluid pressure and the self-reclosing valve flap of the valve disc act on the valve seat to cut off the flow.
Use medium: strong acid, strong alkali, strong oxidant, etc.
Operating temperature: -200~180
Features: Excellent chemical stability, high heat resistance, cold resistance, low friction coefficient, excellent self-lubricating material, but low mechanical properties, poor fluidity and large thermal expansion.
Feature and application
Feature: quick connection by tri-clamp, no cleaning pocket
Application:Dairy, Food, Beverage, Pharmacy, Cosmetic, Chemical industry etc