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新的 Dynaguip VM 系列整体球阀(见图1)是英国 Norgren Martonair 有限公司创制的。当输送的油、气液力流体和化学品温度在230℃以内时,设计的工作压力为10.3Mpa。这种阀体形紧凑,阀体是碳钢或不锈钢的,阀球是13%铬钢或316号不锈钢的,阀座材料为聚四氟乙烯。整体球阀结构的主要优点是减少接头泄漏的危险,此外,还可消除阀体连接部件的意外螺扣松脱。液流通过球阀可以任一方向,压力降较低,因为当球阀开启时,球阀心内孔对液流的阻力极小。操作手柄的位置很快显示了球阀是开还是关。只要
The new Dynaguip VM Series Integral Ball Valve (see Figure 1) was created by Norgren Martonair Ltd. in the United Kingdom. When the delivery of oil, gas and liquid fluids and chemicals at temperatures below 230 ℃, the design of the working pressure of 10.3Mpa. The valve body is compact, the valve body is carbon steel or stainless steel, the valve ball is 13% chromium steel or 316 stainless steel, the seat material is polytetrafluoroethylene. The main advantage of a one-piece ball valve construction is the reduction of the risk of joint leakage, in addition to the elimination of accidental screw-on of the valve body connection parts. Flow through the ball valve can be either direction, the pressure drop is lower, because when the ball valve is opened, the ball valve core hole flow resistance is minimal. The position of the operating handle quickly shows whether the valve is on or off. as long as