不锈钢锻造氧气截止阀

The Stainless steel forged oxygen globe valve is a mandatory sealing valve. When the medium enters from below the valve disc, the resistance that the operating force needs to overcome is the friction force of the valve stem and the packing and the thrust generated by the pressure of the medium. The force of closing the valve is greater than the force of opening the valve, so the force of the valve stem The diameter should be large, otherwise the valve stem will bend up failure.

Product Structure Characteristics

When the Stainless steel forged oxygen globe valve is opened, when the opening height of the valve flap is 25% to 30% of the nominal diameter, the flow has reached the maximum, indicating that the valve has reached the fully open position. In recent years, the flow direction of the stainless steel oxygen shut-off valve has changed from above the valve clack to enter the valve cavity. At this time, under the action of the medium pressure, the force to close the valve is small, but the force to open the valve is large. The diameter of the stainless steel oxygen shut-off valve stem can be corresponding To reduce.