GB/T590-93 船用法兰铸铁截止阀
Marine cast iron flanged stop valves
适用介质：海水、淡水、滑油、燃油和温度不高于220℃蒸汽
Available medium：Sea water、fresh water、lubricating oil、fuel oil and steam of 220℃and under
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型式
Type
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公称压力PN(Mpa)
Nominal Pressure
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公称通径DN(mm)
Nominal Diameter
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零件名称
Part Name
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材料
Material
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|
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A、B
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1．0
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65-150
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阀体Body
阀盖Bonnet
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灰铸铁
Cast iron
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HT200
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1．6
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20-50
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阀盘Disk
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铸锡青铜
Cast tin bronze
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ZQSn10-2Ⅱ
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AS、BS
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0．6
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50-300
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阀杆Stem
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铝青铜
Aluminum bronze
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ZQAl9-2
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1．0
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65-250
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阀座Seat
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铸铝青铜Cast
aluminum bronze
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QAl9-2
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1．6
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20-50
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标记示例：How to order
公称压力为1.6MPa，公称通径为40mm，按GB569法兰连接尺寸和密封面的船用法兰铸铁直通截止阀：
截止阀 A16040 GB/T590-93
For marine cast iron flanged stop valves of PN1.6MPa，DN40mm type A and the flange dimensions in accord with GB569
Stop valve A16040 GB/T590-93
公称压力为1.6MPa，公称通径为40mm，按GB2501法兰连接尺寸和密封面(四进位)的船用法兰铸铁直角截止阀：
截止阀 BS16040 GB/T590-93
For marine cast iron flanged stop valves of PN1.6MPa，DN40mm type B and the flange dimensions in accord with GB2501
Stop valve BS16040 GB/T590-93
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