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General instruction of welded end-end diaphragm valves
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Welded end Port’s Size：
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ISO
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DIN
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DIN11850
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SMS
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NPS
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BSO.D.
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ASTM269
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JIS-G
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JIS-G
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Recommend
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Series 1
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Series 2
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Series 3
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3008
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4825
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ASME BPE
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3459
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3447
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DN
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φd×s
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φd×s
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φd×s
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Φd×s
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φd×s
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φd×s
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φd×s
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φd×s
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φd×s
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φd×s
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15
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21.8×1.60
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18×1.50
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18×1.00
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19×1.50
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20×2.00
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1/2″
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12.70×1.20
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12.70×1.20
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21.7×2.10
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20
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26.9×1.60
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22×1.50
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22×1.00
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23×1.50
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24×2.00
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3/4″
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19.50×1.20
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19.05×1.65
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27.2×2.10
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25
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33.7×2.00
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28×1.50
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28×1.00
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29×1.50
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30×2.00
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25.0×1.20
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1″
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25.40×1.65
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34.0×2.80
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25.4×1.20
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32
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42.4×2.00
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34×1.50
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34×1.00
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35×1.50
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36×2.00
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33.7×1.20
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42.7×2.80
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31.8×1.20
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40
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48.3×2.00
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40×1.50
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40×1.00
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41×1.50
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42×2.00
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38.0×1.20
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1 1/2″
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38.10×1.65
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48.6×2.80
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38.1×1.20
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50
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60.3×2.00
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52×1.50
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52×1.00
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53×1.50
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54×2.00
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51.0×1.20
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2″
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50.80×1.65
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60.5×2.80
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50.8×1.50
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