Bellows-Type Steam Trap - S711
We adhere to customer-oriented principles and drive innovation through technology, providing comprehensive services from product selection to technical consultation, helping enterprises enhance steam system efficiency and create greater value.
Detailed Introduction
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.
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%.
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 |
S711 | 15~20 25 | - | 90 95 | 148 170 | 28 26 | 55 55 | 2.0 2.2 | 0.1-1.6 | 2.5 |
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.
