进口圆盘式疏水阀,美国进口圆盘式疏水阀

美国力沃主要产品〖进口圆盘式疏水阀〗〖进口高温疏水阀〗〖进口电动疏水阀〗〖进口气动疏水阀〗〖进口蒸汽疏水阀〗〖进口不锈钢疏水阀〗〖进口倒吊桶式疏水阀〗〖进口蒸汽疏水阀〗〖进口节能疏水阀〗〖进口浮球式疏水阀〗〖进口双金属疏水阀〗〖进口空气疏水阀〗〖进口圆盘疏水阀〗
【美国力沃进口圆盘式疏水阀】

装置刚启动时，首先在较低的压力下空气和冷凝水流过疏水阀，通过入口孔托起阀片，再由出口孔排出，当压力、温度上升后，内压上升，推动凝结水量增多，而增大流速，这时阀片下的静压降低，使阀片下落，蒸汽从出口孔中间由四周流向阀片和阀盖之间的间隙，进入压力室，将阀片压在密封环上，关闭阀门。当压力室的蒸汽温度降低，开始冷凝，使压力室内的压力降低，进口压力托起阀片，疏水阀开启进行排水。

Disc Trap

When starting the device, firstly, the air and condensed water will flow across steam trap under rather low pressure, and lift valve plate through the entrance hole, and then discharge from the exit hole. After the pressure and temperature rise, the inner pressure will also rise, and cause increased amount of condensed water and increased flow rate, at the moment, the static pressure of valve plate declines which causes the drop of valve plate, and then, the steam flows from all directions via the exit hole into the gap between the valve plate and the valve cover. After steam enters the pressure chamber, it shuts down the valve by pressing valve plate onto the sealing ring. When the steam temperature inside the pressure chamber begins descending and the steam begins to congeal, the pressure declines in the pressure chamber, and the inlet pressure lifts the valve plate, and then the steam trap opens and discharges water.

优点：

1、结构简单，容易安装和维修，抗水击。

2、抗水击，对压力突然变化没有影响。

3、可用于过热蒸汽系统。

4、可以使用高压高温的蒸汽管线。

Merits

1.Simple structure, easy installation and maintenance and water hammer resistant.

2.Water hammer resistant and no effect from abrupt change of pressure.

3.Adoptable for overheat steam system.

4.Adoptable for high-pressure and high-temperature steam pipes.

技术参数/Technique parameter

壳体压力等级

Shell pressure grade，负荷泄漏率

Load leakage rate，使用介质

Used medium，壳体材质

Shell material       允许背压率

Permitted backpressure rate

1.6～42MPA      0.3%，蒸汽、凝结水

Steam、Condensate water     锻钢、不锈钢、合金钢

Forged steel、Stainless steel、Alloy steel        50%

zui大工作压差

Maximum operating pressure differential 使用过热蒸汽

Use superheated steam zui高允许温度

Maximum allowable temperature    抗水击

Resist         压力变化范围

Pressure change range

17MPA      优秀

Excellence 420~550℃ 适应

Adaption

适应

Adaption

主要零件材料/The materials of primary accessories

零部件名称Part and component name  

材质Material

阀体、阀盖Valve body、Valve cover   

锻钢、不锈钢、合金钢Forged steel、Stainless steel、Alloy steel

阀片Valve plate  高铬不锈钢High chrome stainless steel

阀座Valve seat   STL合金STL alloy

过滤网Filtrating screen        不锈钢Stainless steel