Product overview

Globe valve,also known as the cut-off valve, belongs to the forced sealing valve,so when the valve is closed,pressure must be applied to the valve disc to force the sealing surface does not leak. Whenthe medium enters the valve from below the disc,the resistance that the operation force needs toovercome is the friction force of the rod and the packing and the thrust produced by the pressure ofthe medium. The force of closing the valve is larger than that of opening the valve,so the diameterof the castron should be large, otherwise the failure of the stem top bending will occur. According tothe connection mode, it is divided into three kinds: flange connection,silk connection and weldingconnection. From the appearance of the sealing valve,the medium flow of the globe valve ischanged from the top of the valve into the valve chamber,then under the action of the mediumpressure, the force of closing the valve is small, and the force of opening the valve is large,and thediameter of the stem can be reduced accordingly. At the same time, under the action of the medium,this form of valve is also more rigorous. China's valve "three to" has stipulated that the flowdirection of the globe valve is top-down. When the globe valve is opened,the opening height of thereading flap is 25% to 30% of the nominal diameter,and the flow has reached the maximum,indicating that the valve has reached the fully open position. Therefore,the full open position of theglobe valve should be determined by the stroke of the valve disc

Product parameter

Product name: cast steel flange globe valve
 Product material: cast steel /WCB 
product model: J41H-64C  
working temperature: ≤350℃
 Product diameter: 25-200 
Connection form: flange connection