一、进口不锈钢蒸汽减压阀概述
进口不锈钢蒸汽减压阀(威盾VTON),Stainless steel steam reducing valve,是针对有腐蚀介质而设计的一款产品,是通过调节,将进口压力减至某一需要的出口压力,并依靠介质本身的能量,使出口压力自动保持稳定的阀门。从流体力学的观点看,减压阀是一个局部阻力可以变化的节流元件,即通过改变节流面积,使流速及流体的动能改变,造成不同的压力损失,从而达到减压的目的。然后依靠控制与调节系统的调节,使阀后压力的波动与弹簧力相平衡,使阀后压力在一定的误差范围内保持恒定
Stainless steel steam reducing valve (VTON) is a product designed for corrosive media. It adjusts the inlet pressure to a certain required outlet pressure and relies on the energy of the medium itself to maintain stable outlet pressure. From the perspective of fluid mechanics, a pressure reducing valve is a throttling element that can change local resistance. By changing the throttling area, the flow rate and kinetic energy of the fluid are changed, resulting in different pressure losses and achieving the purpose of pressure reduction. Then, relying on the adjustment of the control and adjustment system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve remains constant within a certain error range
二、进口不锈钢蒸汽减压阀主要技术参数和性能指标
公称压力(MPa):1.6-16.0 | 壳化试验压力(MPa):2.4-24 | |
密封试验压力(MPa):1.6-16.0 | 最高进口压力(MPa):1.6-16. | |
出口压力范围(MPa):1.6-16 | 公称通径:DN15-500mm | |
环境温度(℃):-20-450 | 最小压差MPa:0.15-1.0 | |
控制精度误差:≤3% | 制造标准:VTON |
三、进口不锈钢蒸汽减压阀流量系数(Cv)
DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 500 |
Cv | 1 | 2.5 | 4 | 6.5 | 9 | 16 | 25 | 36 | 64 | 100 | 140 | 250 | 400 | 570 | 780 | 1020 | 1500 |
四、进口不锈钢蒸汽减压阀主要零件材料
阀体:WCB,不锈钢304、316 | 阀盖:WCB,不锈钢304、316 | |
底盖:WCB,不锈钢304、316 | 阀盘:2Cr13 | |
阀座 :2Cr13 | 缸套:2Cr13/铜合金 | |
活塞:合金铸铁 | 导阀杆:2Cr13 | |
导阀座:2Cr13 | 主阀弹簧:1Cr18Ni9Ti | |
导阀主弹簧:50CrVA | 调节弹簧:60Si12Mn |
五、进口不锈钢蒸汽减压阀外形图
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