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SKU:弹簧微启式外螺纹安全阀(A21H)
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Description:
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系列Series
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A21F-16C A21H-16C A21H-40 A21H-64 A21Y-100 A21H-160 A21W-16P A21W-40P A21F-40P A21W-64P A21W-100P A21W-160P KA21Y-16C KA21Y-16P A21Y-16R A21Y-40R A21Y-64R A21Y-100R A21Y-160R
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A21F、A21H-C型适用于工作温度≤200℃的空气、氨、石油气……等介质的设备或管路上。A21W-P、R型适用于温度≤200℃有腐蚀性的气体或液体的设备或管路上，作为超压保护装置。KA21Y型适用于温度≤100℃的液化石油气等。
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A21F, A21H-C type are used for the equipment and pipeline of the air, ammonia, petroleum gas, etc. medium what the wor-king temperature are less than 200 . A21W-P, R type are used for the equipment and pipeline of the quality with corr ode gas and liquid medium shat the wor-king temperature are less than 200 . Take for extrapressure protection devices. KA21Y type are used for liquefied petroleum gas what the working temperature are less than 100
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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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A21H-C/A21F KA21Y-C Materials
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A21W-P/A21F-P KA21Y-P Materials
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A21Y-R Materials
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1
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Union
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20
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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2
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Union nut
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35
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2Cr13
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1Cr18Ni9Ti
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3
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Nozzle
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35
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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4
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Body
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2Cr13
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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5
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Disc
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2Cr13/2Cr13+PTFE
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1Cr18Ni9Ti/1Cr18nI9Ti+PTFE
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1Cr18Ni12Mo2Ti
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6
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Spring washer
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2Cr13
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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7
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Spring
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50CrVA
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50CrVACoated Teflon
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50CrVACoated Teflon
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8
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Locking nut
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Q235-A
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2Cr13
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1Cr18Ni9Ti
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9
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Spring guide
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2Cr13
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1Cr18Ni9Ti
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1Cr18Ni12Mo2Ti
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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" CoDepositing stellite, "H" D507 Depositing D507, "W"body
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外形尺寸和连接尺寸Dimensions (mm)
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Type
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(DN)
Nominal diameter
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do
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d
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Do
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M
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d1
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D1
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L
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L1
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H
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KA21Y-16C A21H-16C A21H-40
A21W-16P A21W-40P KA21Y-16P
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15
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12
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15
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20
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M27 1.5
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G1/2"
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30
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35
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76
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66
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20
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16
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20
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25
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M33 1.5
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G3/4"
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34
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40
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87
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68
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25
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18
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25
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31
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M39 1.5
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G1"
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40
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50
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100
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105
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A21Y-64
A21Y-64P A21Y-100
A21Y-100P
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15
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10
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15
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25
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M39 1.5
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G1"
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44
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50
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100
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66
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20
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10
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20
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31
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M39 1.5
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G1"
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44
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50
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100
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68
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25
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12
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25
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31
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M39 1.5
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G1"
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44
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50
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100
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105
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A21W-160
/160P
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15
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8
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20
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/
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M24 2
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G1"
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44
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50
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100
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261
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20
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8
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25
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/
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M33 2
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G1"
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44
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50
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100
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261
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25
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8
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28
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/
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M36 2
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G1"
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44
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50
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100
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285
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