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產品介紹：
膜盒式蒸汽疏水閥（蒸汽壓力平衡式）工作時閥前存有高溫凝結水，無蒸汽泄漏，節能效果顯著。
膜盒式在現如今蒸汽管線中是代替低壓（壓力在PN25以下）熱動力（圓盤式）疏水閥或（壓力在PN16以下）雙金屬片式疏水閥的理想替代品。
Bellows Trap
The main acting unit of bellows,which is filled with a ytpe of liquid with gasification temperature lower than water's saturation temperature.When the device just starts,there appears condensate with low temperature in conduits and the liquid in the bellows is in the condensed state.The trap is turned on.When the temperature of condensate water gradually goes up,the liquid in the bellows begins to vaporize and the pressure within it increases.Consequently,the film drives the valve core to move towards the closing direction.Before the condensate water reaches its saturation temperature,the trap is completely shut down.The bellows controls the opening and closing of valves in accordance with steam temperature changes so as to resist steam and discharge water.Available are two alternative bellows with opening temperature 15℃ or 30℃ lower than saturation temperature.
There is high temperature condensate in front of the Bellows Trap (steam pressure balance type) when it works, and there is no steam leakage, so the energy saving effect is significant.
Bellows trap,among all existing steam pipes,are presently the ideal substitute of low-pressure (with pressure below PN25)hot motive (disc)traps or bimetallic elements traps (with pressure below PN16).
優點：1、動作速度快，零泄漏。
2、結構簡單，維護方便。
3、部件全部采用合金處理的不銹鋼，耐磨，耐氣蝕，使用壽命長。
4、排空能力強，排水迅速，安裝方式隨意。
5、可以實現多個膜盒組合，適用于大的排量場合。
6、具有良好的排空氣性能，不怕凍，零泄漏，背壓率達到75%。
1.Quick acting speed and zero leakage.
2.Simple structure and convenient maintenance.
3.All components made of alloy-treated stainless steel,resistant to wearing,gas corrosion,long durability.
4.Good emptying capability with quick discharge and easy installation.
5.Capable of combination of multiple bellows,suitable for large discharge.
6.Good air discharge capability,with coldness resistance,zero leakage and backpressure of 75%.
膜盒式疏水閥/BELLOWS TRAP
技術參數/Technique parameter
|
殼體壓力等級 Shell pressure grade |
負荷泄漏率 Load leakage |
使用介質 Used medium |
允許背壓率 Permitted backpressure rate |
節能效果 Energy saving effect |
最大工作壓差 Maximum operating pressure differential |
|
1.6、2.5MPA |
0% |
蒸汽、凝結水 Steam、 Condensate water |
75% |
優秀 Excellence |
1.6MPA
|
|
最小過冷度 Minimum subcooled temperature |
排水方式 Drainage method |
最高允許溫度 Maximum allowable temperature |
排空氣裝置 Air exhaust system |
抗凍性 Freezing resistance |
抗水擊 Resis |
|
0℃ |
間接方式 Indirect way |
350℃ |
自動 Automatic |
優秀 Excellence |
適應 Adaption |
主要零件材料/The materials of primary accessories
|
零部件名稱 Part and component name |
材質Material |
|
閥體、閥蓋 Valve body、Valve cover |
鍛鋼、不銹鋼 Forged steel、Stainless steel |
|
膜盒 Bellows |
哈氏合金 Hastelloy alloy |
|
閥座 Valve seat |
STL合金 STL Alloy |
|
過濾網 Filtrating screen |
不銹鋼 Stainless steel |
外形尺寸和重量/Prime out-form dimensions and weigh
產品型號
Product
model
口徑(DN)
Calibre
L法蘭
Flange
L螺紋/
焊接
Thread/
welding
H1
H2
W
重量(kg)
weight
使用壓力
范圍(MPa)
Pressure
Change
range
公稱壓力
(MPa)
Nominal
pressure
SM16
SM46
15~20
25
150
160
100
110
58
20
68
1.9
2.5
3.9
5
0.1-1.6
2.5
SM46
32~40
50
220
230
150
160
68
68
90
5
13
0.1-1.6
2.5
SM46
65~100
310
-
120
95
150
24
0.1-1.6
2.5
1、選型時請提供工作壓力、工作壓差、凝結水發生量、工作溫度、連接方式及標準。
2、凝結水負荷的安全系數一般為2～3倍。
3、正確安裝、定期保養清除閥內污物，保證疏水閥正常工作和延長使用壽命。
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.
