Advantages and disadvantages of High Pressure Check Valve

Check Valve is widely used in oil and gas pipeline andoil production, oil refining, petrochemical, chemical, chemical fiber, metallurgy, electricity, nuclear power, food and paper and other devices.

Top Entry ball valve can be divided into fixed and floating ball valve. The disadvantage is that the spring preload can not be adjustedand controlled, and large compression spring assembly, the assembly difficult.

Industry-specific characteristics of Globe Valve is can be high temperature ,suitable higher pressure range, the valve nominal diameter large, carbon steel valve body, valve plate metal ringinstead of the rubber seal ring. Valve operating torque, due to open and close the valve opening, and its value varies in different directions.

Butterfly valve opening and the relationship between flow,essentially linearly proportional to the change. If used to control theflow, its flow characteristics and flow resistance of piping is alsoclosely related.

Flange Ball Valves has the following advantages:
1.the working stroke is small, open and close a short time.
2.sealing, and sealing surface between the friction force is small, longer life expectancy.
3.simple structure, manufacture and maintenance more convenient.
High-pressure valve defects are as follows:
1.does not apply with particles, viscosity, easy to medium coke.
2.fluid resistance, force required to open and close large.
3. adjust the performance is poor.