6. To drain whenever there is water left over so as to quicken the startup speed of the system.
零部件名称Part and component name | 材质Material |
阀体、阀盖Valve body、valve cover | 铸铁、铸钢、不锈钢Cast iron、Cast steel、Stainless steel |
自由浮球Free float ball | 304/316不锈钢304/316 Stainless steel |
阀座Valve seat | 高铬不锈钢High chrome stainless steel |
自动排空气装置Automatic air exhaust | 不锈钢、热敏元件Stainless steel、Thermo-sensitive element |
过滤网、罩Filtrating screen、Cover | 不锈钢Stainless steel |
不锈钢球直径/Diameter of stainless bal
材质/Material | A,JH3N | B,JH5N | D,JH7N | E,JH9N | F,JH11N | G,JH13N |
铸铁 Cast iron | 50 | 68 | 110 | 150 | 180 | 200 |
铸钢 Cast steel | 50 | 70 | 120 | 150 | 190 | 220 |
When the equipment is just started, the low-temperature condensate and air enter the valve cavity at the same time. At this time, open the automatic evacuation device to remove the air, so that the low-temperature condensate can enter the valve cavity smoothly. The liquid level of the condensate in the valve cavity will rise immediately, so that the floating ball will rise. Open the valve hole, so that the condensate can be discharged quickly. The steam in front of the equipment will enter the heating equipment quickly, so that the equipment can be heated quickly and heated up. When the steam or the temperature is lower than When the high temperature condensed water enters the valve chamber, the automatic emptying device starts to expand, the automatic air exhausting device is closed, and the drain valve starts to work normally. At this time, the floating ball in the valve chamber will rise and fall with the level of condensate, which can discharge condensate continuously. Because the valve seat hole of the free floating ball type drain valve is always below the condensate level, forming a water seal, the water vapor is naturally separated, and there is no steam leakage during operation. The minimum working pressure of the valve is 0.01Mpa, from 0.01Mpa to the maximum working pressure range, it is not affected by the fluctuation of temperature and working pressure, and can work continuously. Its minimum supercooling degree is about 0 ℃. Because the valve can automatically and continuously remove the condensate, there is no water accumulation in the heating equipment, which can make the heating equipment achieve the ideal heat exchange efficiency. It is one of the ideal drain valves for heating equipment of production process.
自由浮球式疏水阀 FREE-BALL FLOAT TRAP
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 | 工作压差 Maximum operating Pressure differential |
6.4、 11.0MPA | ≈0% | 蒸汽、 凝结水 Steam、 Condensate water | 碳钢/ 304/ 316 Carbon steel | ≥80% | 6.4MPA |
节能效果 Energy saving effect | 最小过冷度 Minimum subcooled temperature | 排水方式 Drainage method | 允许温度 Maximum Allowable temperature | 排空气装置 Air Exhaust system | 压力变化范围 Pressure Change range |
优秀 Excellence | 0℃ | 连续方式 Continue mode | 420℃ | 自动 Automatic | 适应 Adaption |
外型尺寸和重量/Prime out-form dimensions and weigh
产品型号 Product model | 口径(DN) Calibre | L法兰 Flange | L螺纹/ 焊接 Thread/ welding | H1 | H2 | W | 重量 Weight | 使用压力 范围(Mpa) Pressure change range | 公称压力 (Mpa) Nominal pressure |
JH5NF | 15~20 25 | 230 | - | 56 | 126 | 142 | 12 | 0.1-6.4 | 11.0 |
JH5NW | 15~20 25 | - | 230 | 56 | 126 | 142 | 10 | 0.1-6.4 | 11.0 |
排水量/Capacity
注解:
1、选型时请提供工作压力、工作压差、凝结水发生量、工作温度、连接方式及标准。
2、凝结水负荷的安全系数一般为2~3倍。
3、正确安装、定期保养清除阀内污物,保证疏水阀正常工作和延长使用寿命。
4、装有自动排气阀的疏水阀,其凝结水量能够额外增加300Kg/h。
Note
1. Please provide operating pressure and operating pressure difference, generating quantity of condensation water, operating temperature, connecting mode and standards in selecting product models.
2.The load of condensation water’s safety coefficient reaches 2 to 3 times in general.
3. Please make sure the drain valve is installed properly, maintained regularly, cleaned up and operates under the normal condition, so as to extend its service life.
4.The steam trap, if equipped with automatic exhaust valve, can have the quantity of condensate water increased by 300Kg/h.
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