GB/T587-93 船用法兰青铜截止阀
Marine bronze flanged stop valves
适用介质：海水、淡水、滑油、燃油和温度不高于250℃蒸汽
Available medium：Sea water、fresh water、lubricating oil、fuel oil and steam of 250℃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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A
B
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1.0
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65～150
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阀体Body
阀盖Bonnet
阀盘Disk
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铸锡青铜
Cast tin bronze
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ZQSn10-2Ⅱ
ZQSn5-5-5Ⅱ
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1.6
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125～150
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2.5
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20～125
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AS
BS
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0.6
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15～150
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阀杆Stem
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铝青铜
Aluminum bronze
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QAl9-2
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1.6
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65～150
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2.5
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15～125
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标记示例：How to order
公称压力为2.5MPa，公称通径为40mm，按GB569法兰连接尺寸和密封面的船用法兰青铜直通截止阀：
截止阀 A25040 GB/T587-93
For marine bronze flanged stop valves of PN2.5MPa，DN40mm type A and the flange dimensions in accord with GB569
Stop valve A25040 GB/T587-93
公称压力为1.6MPa，公称通径为125mm，按GB2501法兰连接尺寸和密封面(四进位)的船用法兰青铜直角截止阀：
截止阀 BS16125 GB/T587-93
For marine bronze flanged stop valves of PN1.6MPa，DN125mm type B and the flange dimensions in accord with GB2501
Stop valve BS16125 GB/T587-93
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