In the process of development of all kinds enterprise production, low temperature cut-off valve plays a very important role, so in production it is the study of how to give full play to the positive role? We will see together. Forged steel check valve used for industrial piping block medium counter-current device. American standard check Industrial Valves according to the conditions of use, valve can be all-metal structure, can also be embedded in disc shelves rubber mat or rubber ring form. Pneumatic valve disc sliding along the center line of the body of the valve. Pipeline check Industrial Valves is a new kind of valve, its small size, light in weight and good processing technology, is one of the check valve development direction. But the fluid drag coefficient is slightly superior to swing check valves. The first. 1. When current start when low temperature cut-off Industrial Valves in the cue in the closed position, the function of mechanical pressure under the seat. 2. When the handwheel counterclockwise, the lever of reverse move, globule separation Angle at the bottom of the plane. 3. Stem continues to improve, and valve stem guide pin screw groove interaction, which makes the ball around to without friction. 4. To the fully open position, the valve stem to limit position, the ball rolled to the fully open position. In the second. 1 when closed. Closed, through the handwheel clockwise, stem begin to decline and begin to rotate between the spheres can leave the seat. 2. Continue to use rotate handwheel, the valve stem is embedded in the spiral groove on the role of the guide pin, the stem and ball model have rotated 90 degrees at the same time. 3. Is going to achieve closed, sphere under the condition of structure has been in contact with the seat without rotated 90 degrees. 4. The handwheel control the rotation of the last few laps, stem Angle at the bottom of the plane can't mechanically wedge to the oppression of a sphere, make it more closely to pressure on the seat, we completely different seal. The check valve in use, therefore, should be rationally according to the steps, to make sure it can play a role in the production.
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