Light-type self-power-off electromagnetic ball valve

Abstract

The invention relates to a light-type self-power-off electromagnetic ball valve. The electromagnetic valve comprises a valve body, a ball body, a valve seat, a valve rod, a filler, a pressing nut, a manual device, an actuator and a valve position display, wherein the valve body is fixedly arranged at the bottom of the electromagnetic ball valve, the valve seat is fixedly connected with the valve body, and the ball body is arranged in the valve body; the actuator is arranged on the upper portion of the valve body, the actuator is shaped like a box, and an explosion-proof layer is arranged in the actuator; a box body of the actuator is further provided with an automatic and manual device, one end of the valve rod is fixedly connected in the actuator, and the other end of the valve rod is connected to the valve body; and the outer side of the valve body is provided with the filler, and the filler is ethylene propylene diene monomer rubber. The light-type self-power-off electromagnetic ball valve is simple in structure, green, environmentally friendly, small in water discharge amount, good in sealing performance, free of leakage, wide in application range, wide in application range, sensitive in response, stable in work and long in service life.

Description

technical field [0001] The invention relates to a valve, in particular to a light electromagnetic ball valve with self-cutting power. Background technique [0002] At present, ordinary cryogenic ball valves generally adopt a one-way sealing structure, and a pressure relief hole is provided on the side wall of the ball corresponding to the upstream end of the valve body, so that when the ball is closed, the valve chamber is always connected with the upstream high-pressure medium to avoid accidents caused by low-temperature gasification of the medium. The stem part is set with a long neck structure, so that the sealing packing is away from the end of the ball, so as to ensure the sealing of the stem during the long-term switching process of the valve. The defect of this common cryogenic valve is: due to the long-term operation at low temperature, the main seal of the valve body only depends on the pre-tightened wound gasket seal, the service life is short, and the sealing pack...

AI Technical Summary

Problems solved by technology

The defect of this common cryogenic valve is: due to the long-term operation at low temperature, the main seal of the valve body only depends on the pre-tightened wound gasket seal, the service life is short, and the sealing packing at the top of the valve stem is in a high and low temperature alternating state for a long time , the same short service life

And the ball valve is a floating ball design, only suitable for small diameter low pressure valves

The technicians of scientific research units and enterprises are constantly exploring and researching, hoping to develop a ball valve with superior performance. Although some progress has been made, there are still technical problems that have not been overcome in practical application.

Images