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产品介绍：
Bellows seal trap
The thermo-sensitive element of bellows seal traps is bellows filled with volatile liquid,which employs the volatility of the liquid and flexibility of the bellows.When temperature of the steam pipe goes up,the liquid volatilizes into gas,the size expands and produces pressure to impel bellows to stretch.In contrast,when temperature of the steam pipe goes down to the temperature for gas to turn into liquid,the size gets smaller and the bellows contract due to lack of impetus.
优点：
1、排水温度可以调节在70~100度之间，使用方便。
2、能够阻止高温凝结水的排放，保持蒸汽管线的热能。
3、连续排水，没有噪音。
4、蒸汽压力的小波动没有影响使用。
5、结构简单，体积小，安装方便、随意。
6、通过增加波纹管直径提高凝结水的排量。
7、具有良好的排空气性能，不怕冻。
8、零泄露，背压率达到75%。
Merits
1.Convenient use due to adjustable water discharge temperature ranging from 70 to 100 degrees.
2.Capability to prevent discharge of high-temperature condensate so as to maintain heat energy of the steam pipe.
3.Continuous water discharge without noise.
4.Free from the effect of small fluctuation of steam pressure.
5.Simple structure,small size and easy installation.
6.Improvement of discharge capacity condensate by increasing diameter of bellows.
7.Good air diameter performance with resistance to coldness.
8.Zero leakage and backpressure ratio up to 75%.
安装、使用注意事项：
安装前管路应用蒸汽吹除污物。箭头所示方向与流向一致。
疏水阀前热力管应有1～2米不必保温。应安装在低于用汽设备凝结水排出点的地方。
该阀出厂前疏水温度已调节在95℃左右，如果需要改变疏水温度或排水量时，可打开防护帽，松开锁紧螺母，旋转调节螺钉，顺时针旋转阀芯前进，疏水量减少，疏水温度降低；逆时针旋转，阀芯后退，疏水量增大，疏水温度上升。调整后，就将锁紧螺母拧紧。
要定期保养，清除过滤网前的污物，保证疏水阀正常工作。
Installation/attention for use
Before the installment of pipeline,use the steam to blow off the pollutant.The arrow shows the direction consistent with the flow direction.
Ahead of the trap,the thermal tube of 1～2 meters need no heat-preservation.Be installed at thermal position lower than the condensation water discharge point of the steam-using equipment.
Before leaving the plant,the hydrophobic temperature of trap has been adjust around 95℃.If it is needed to change the hydrophobic temperature or the displacement,open the shielding bonnet,loosen the lock nut,revolve the adjusting screw revolve the valve core clockwise,the hydrophobic volume reduces and the hydrophobic temperature drops;revolve it counterclockwise,the valve core backlashes,the hydrophobic volume increases,and the hydrophobic temperature rises.After the adjustment ended,tighten the lock nut.
It is needed to make the periodic maintenance and clear the pollutant before the filtration screen,so as to guarantee the trap work normally.
波纹管式疏水阀/BELLOWS SEAL TRAP
技术参数/Technique parameter
|
壳体压力等级 Shell pressure grade |
最大工作压差 Maximum operating pressure differential |
最高允许温度 Maximum allowable temperature |
允许背压率 Permitted Backpressure rate |
|
|
1.6 、2.5MPA |
1.6MPA |
350℃ |
75% |
|
|
抗冻性 Freezing resistance |
排空气装置 Air Exhaust system |
使用介质 Used medium |
节能效果 Energy saving effect
|
负荷泄漏率 Load leakage
|
|
优秀 Excellence |
自动 Automatic |
蒸汽、凝结水 Steam、 Condensate water |
优秀 Excellence |
0% |
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 |
碳钢、不锈钢 Carbon steel、Stainless steel |
|
液囊 Reservoir |
不锈钢和易挥发液体 Stainless steel、Volatile liquid |
|
阀座 Valve seat |
高铬不锈钢、四氟 High chrome stainless steel、Four Fluorine |
|
过滤网 Filtrating screen |
不锈钢 Stainless steel |
外形尺寸和重量/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(kg)
weight
使用压力
范围(MPa)
Pressure
change
range
公称压力
(MPa)
Nominal
pressure
BNF
15-25
-
125
-
-
-
-
0.1-1.6
2.5
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。
Note
1.Please provide operating pressure and operating pressure difference,generating quantity of condensate water,operating temperature,connecting mode and standards in selecting product models.
2.The load of condensate 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.
