船用空气减压阀压力分级Pressure Classification
l压力分级Pressure Classification
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进口压力Entry Pressure(P1)
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出口压力Exit Pressure(P1)
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A
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3.0
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1.0~0.7
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B
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3.0
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<0.7~0.2
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e
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1.0
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0.4~0.05
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性能规范Technical Data
公称通径Nominal Diameter
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进口工作压力Entry Pressure Pl(MPa)
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||||
DN(mm)
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3.0
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1。0
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|||
进口Entry DN1
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出口Exit DN2
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出口减压压力Exit Reduce Pressure P2(MPa)
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|||
15
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20
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1.0—0.7
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0.7~0.2
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0.4~0.05
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|
20
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25
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||||
25
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32
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主要零部件材质Materials of Main Parts
零件名称Parts Name
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材料Material
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名称Name
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牌号Marks
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阀体Body
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铸钢Cast Steel
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ZHSi80-3
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阀盖Cover
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铸钢Cast Steel
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ZG230-450
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弹簧材料Material Of Spring
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铸钢Cast Steel
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608iZMnA
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基本尺寸Dimensions
公称通径Nominal
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结构尺寸
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外螺纹连接尺寸Connect Sice for Screw
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重量
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||||||||||||
Diameter
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Structure Dimension
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进口Entry
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出口Exit
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Weight(kg)
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|||||||||||
DNl
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DN2
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L
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H
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h
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D1
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D2
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D3
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11
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12
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D4
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Ds
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D6
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13
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14
|
|
15
|
20
|
140
|
312
|
103
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M36×2
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33
|
22
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22
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5
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M39×2
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36
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25
|
23
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5
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6.57
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20
|
25
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229
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390
|
123
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M39×2
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36
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25
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23
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5
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M48×2
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45
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32
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26
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6
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22.3
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25
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32
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229
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390
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123
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M48×2
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45
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32
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26
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6
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M56×2
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53
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38
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28
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6
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27.3
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