industrial valves supplier-Belo Valve

1. For gate valve: 

Gate valve refers to a valve whose closing part moves in the vertical direction of the channel axis. It is mainly used to cut off the medium on the pipeline, that is, the gate valve is fully opened or fully closed. 

In general, gate valve cannot be used to regulate flow. With different material used for the gate valve, it can be applied to low temperature,low pressure pipelines and also can be applied to high temperature and high pressure pipelines. 

1.1. the advantage of gate valve:

①. the gate valve has small flow resistance. 

②. the gate valve requires less torque for opening and closing. 

③. the gate valve can be used on the ring network pipeline where the medium flows in two directions, that is to say, the flow direction of the medium is not restricted. 

④. when the gate valve is fully open, the sealing surface is less eroded by the working medium than the globe valve. 

⑤. the gate valve has relatively simple body structure, and its manufacturing process is better. 

⑥. the face to face length of the gate valve is relatively short. 

1.2.  the disadvantage of gate valve 

①. the gate valve’s external dimensions and opening height are large, so it requires larger space to install. 

②. During the gate valve’s opening and closing process, the sealing surface is relatively rubbed, and the friction loss is large, and even when the temperature is high, it is easy to cause scratches. 

③. Generally, the gate valves have two sealing surfaces, which makes it difficult to process, grind, and maintain. 

④. the gate valve has longer opening and closing time. 

soft seal gate valve
soft seal gate valve
how gate valve looks like
how gate valve looks like

2. For check valve: 

The check valve is also called cut off valve, one way valve, back-pressure valve, non-return valve. These check valves are automatically opened and closed by force generated by the flow of the medium itself in the pipelines, and they are one kind of automatic valve. 

2.1. Where the check valve is used: 

The check valve is mainly used in the pipeline system, and its main function is to prevent the backflow of the medium, the reverse rotation of the pump and the driving motor, and the discharge of the medium in the container. The check valve may also be used on auxiliary supplying pipe lines system where the pressure may rise above the system pressure. 

The check valve mainly includes swing check valve( rotating around the center of the gravity), lift check valve(move along the axis line), wafer butterfly type check valve, ball type check valve, shuttle check valve. 

how check valve looks like
how check valve looks like
how swing check valve works
how swing check valve works
wafer butterfly check valve looks like
wafer butterfly check valve looks like

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