船用三通疏水閥

產品介紹
裝置剛啟動時，首先在較低的壓力下空氣和冷凝水流過疏水閥，通過入口孔托起閥片，再由出口孔排出，當壓力、溫度上升后，內壓上升，推動凝結水量增多，而增大流速，這時閥片下的靜壓降低，使閥片下落，蒸汽從出口孔中間由四周流向閥片和閥蓋之間的間隙，進入壓力室，將閥片壓在密封環上，關閉閥門。當壓力室的蒸汽溫度降低，開始冷凝，使壓力室內的壓力降低，進口壓力托起閥片，疏水閥開啟進行排水。
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 lifets the valve plate,and then the steam trap opens and discharge water.
優點：
1、結構簡單，容易安裝和維修，抗水擊，排空性能優越。
2、抗水擊，對壓力突然變化沒有影響。
3、可用于過熱蒸汽系統。
4、可以使用高壓高溫的蒸汽管線。
Merits
1.Simple structure,easy installation and maintenance and water hammer resistant.
2.Water hammer resistant and on effect from abrupt change of pressure.
3.Adoptable for overheat steam system.
4.Adoptable for high-pressure and high-temperature steam pipes.

熱動力式疏水閥/THERMO-DYNAMIC 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	殼體材質 Shell material	允許背壓率 Permitted backpressure rate
1.6~42MPA	0.3%	蒸汽、凝結水 Steam、Condensate water	鍛鋼、不銹鋼、合金鋼 Forged steel、Stainless steel、Alloy steel	75%
最大工作壓差 Maximum operating pressure differential	使用過熱蒸汽 Use superheated steam	最高允許溫度 Maximum allowable temperature	抗水擊 Resis	壓力變化范圍 Pressure change range
17MPA	優秀 Excellence	420℃~550℃	適應 Adaption	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、合金鋼         Forged steel、Stainless steel、Alloy steel
閥片                 Valve plate	高鉻不銹鋼               High chrome stainless steel
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
TD42、TD42F	15-20 25	150 160	100 105	54	64	55	1.5		0.1-4.5	6.4

注解

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.
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