| 详细介绍： A28H型安全阀适用于工作温度≤200℃的空汽、蒸汽、水、氮氢混合等介质的设备或管路上；A28Y-P/10R8 型适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。A28H和A28Y产品系列有：
A28H-10、A28Y-10P、A28Y-10R8、A28Y-25R8、A28Y-40R8、A28H-16、A28Y-16P、A28Y-16R8、A28Y-25R8、A28Y-40R8。备注：订购时请注明型号、压力、口径、材质、开启压力、介质、温度
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带手柄弹簧全启式安全阀简介：
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A28H型带手柄弹簧全启式安全阀适用于工作温度≤200℃的空气、蒸汽、水、氮氢混合气等介质的设备或管路上，A28Y-P/10R8型不锈钢带手柄弹簧全启式安全阀适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。
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带手柄弹簧全启式安全阀主要零部件材料 Explanation of materials for main parts
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NO.
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Name of part
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A28H Materials
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A28Y-P Materials
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A28Y-R8 Materials
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1
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Body
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HT200
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ZG1Cr18Ni9Ti
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CF8M
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2
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Nozzle
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35
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ZG1Cr18Ni9Ti
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CF8M
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3
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Adjusting ring
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2Cr13
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1Cr18Ni9Ti
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316
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4
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Disc
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2Cr13
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1Cr18Ni9Ti
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316
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5
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Spring
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50CrVA
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50CrVA Coated Teflon
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50CrVA Coated Teflon
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6
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Stem
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2Cr13
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2Cr13
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316
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7
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Adjusting bolt
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45
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2Cr13
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316
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8
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Cap
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ZG200-400
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ZG200-400
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CF8M
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Sealing surface of material
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D507
Depositing D507
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Co
Depositing stellite
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10
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Adjusting nut
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Q235-A
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2Cr13
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1Cr18Ni12Mo2Ti
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Sealing surface of material
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"Y" Co Depositing stellite, "H" D507 Depositing D507, "W" body
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带手柄弹簧全启式安全阀外形尺寸和连接尺寸 Dimensions（mm）
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Nominal diameter
DN（mm）
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Dimensions（mm）
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do
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Rc
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G
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L
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L1
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H
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15
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10
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1/2"
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3/4"
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37
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62
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189
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20
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12
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3/4"
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1"
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40
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65
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196
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25
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15
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1"
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11/ "
4
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45
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72
|
277
|
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32
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20
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11/ "
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1
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55
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85
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312
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40
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25
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11/ "
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2"
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67
|
100
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322
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50
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32
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2"
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21/ "
2
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76
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112
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348
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65
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40
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21/ "
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3"
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110
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135
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370
|
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80
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50
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3"
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4"
|
110
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145
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410
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