A one-way valve introduced

Check valve: check valve, also known as the one-way valve or check valve, and its role is to prevent the media back in the line. Pump water off the bottom valve is a check valve class. Opening and closing pieces by medium flow and force itself on or off, to prevent the media back valve called a check valve. Check valves are automatic valves, main pipeline for way flow of media, and allows the media to flow in one direction only, in order to prevent accidents.

Check valve structure is divided into lift check valve, swing check valve, butterfly valve three. Lift check valve can be divided into vertical and horizontal. Swing check valve is divided into the univalve, double valve type and Orange Peel-three. Butterfly valve straight through the above types of check valves in connection formally can be divided into the threaded connection, flange connection and welding of three. The one-way valve is a stream can only flow in one direction but not the reverse direction of the flow control valve. Works with hydraulic check valve. Compressed air from the inlet to enter, and to overcome the spring force and the frictional force so that the one-way valve port open, check valve is applied to a reverse flow of occasions allowed airflow, such as air compressors to the pneumatic cylinders in the compressor and gas the tank is provided between a one-way valve prevents the tank, the compressed air is returned to the air compressor when the air compressor stops working. Check valve is also often combined with the throttle valve, sequence valve into a one-way throttle valves use it to replace a one-way order.Safety Valve Burner Valve


Closing valves, also called the sectional door, is the most widely used as a valve reason it popular, is the friction between the sealing surface due to the process of opening and closing is small, relatively durable, opening height is small, easy to manufacture, maintenance convenience, applies not only to the low pressure, but also suitable for high pressure. The shut-off valve is closed principle, relying on the valve bar pressure, the sealing surface of the valve seat sealing surface to fit closely to prevent media circulation. Media shut-off valve can only unidirectional flow directional installation. The date of the length of the structure of the valve is greater than the gate, while the fluid flow resistance is large, the long-term operation, the sealing reliability is not strong.Valve Burner