What are the various structural functions of the Universal Valve?

1. Lever hammer type Universal Valve: Lever hammer type Universal Valve. The force of the weight is amplified by the lever and then loaded on the Gate Valve. The magnitude of the load remains unchanged during the opening and closing process of the valve, so the force transmitted from the Valve Stem is basically unchanged. Its disadvantage is that it is sensitive to vibration and has poor seat return performance. The Universal Valve with this structure can only be used on fixed equipment. The mass of the weight should generally not exceed 60KG to avoid difficulty in operation. The cast iron weight type Universal Valve is suitable for nominal pressure PN<=1.6MPa, medium temperature T<=200 degrees Celsius; the carbon steel weight type Universal Valve is suitable for nominal pressure PN<=4.0MPa, medium temperature t<=450 degrees Celsius.The hammer type Universal Valve is mainly used for water, steam and other media.

2. Micro-lift Universal Valve: A Universal Valve whose opening height is 1/40-1/20 of the diameter of the valve seat is a micro-lift Universal Valve. Micro-activated Universal Valve are further divided into micro-activated Universal Valve without adjusting rings and micro-activated Universal Valve with narrow adjusting rings, micro-activated spring Universal Valve without adjusting rings, and micro-activated spring Universal Valve with adjusting rings. valve. The spring Universal Valve with an adjustment ring can use the adjustment chart to adjust the discharge force, that is, the opening and closing pressure difference.
3. Full-lift Universal Valve: A Universal Valve whose opening height is 1/4 to 1/3 of the diameter of the valve seat is a full-lift Universal Valve. The full-open Universal Valve is equipped with a recoil plate at the Gate Valve of the Universal Valve. With the help of the expansion impulse of the gas medium, the Gate Valve is opened to a sufficient height to meet the displacement requirements. Universal Valve with this structure are used more often and have higher sensitivity.