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crystalhert

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Nozzles vent & drains shall be supplied with blind flanges, bolting and gaskets at high/low pointsof shells and channels. For stacked units, provide a vent nozzle in each shell.
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The bolt holes of the nozzle and girth flanges shall always straddle the principal centrelines of theexchanger or their parallel lines.
Vents and drains on vertical exchangers shall be ND20 if possible, drilled and tapped in the tubesheet (and fitted with a threaded plug). Unless otherwise specified, for hydrogen and clad items ND25 flanges nozzles shall be provided instead.
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Length of bolts and studs shall be such that they extend beyond nuts by at least four threads. Stud bolts shall be provided with two heavy series hexagonal nuts.
Bolt diameter > 2¡± exchangers shall be tightened using hydraulic bolt tensioning equipments. In this case, required tension for each bolt shall be marked and drawing and Vendor data book as required for tightening torque.
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clzkzy

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crystalhert(½ð±Ò+1, ·­ÒëEPI+1): ÐÁ¿à 2011-04-27 09:06:54
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2Â¥2011-04-26 19:29:07
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yinjuanchen

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crystalhert(½ð±Ò+1): 1ÐÁ¿à 2011-04-27 09:07:04
crystalhert(½ð±Ò+1): 2011-04-28 14:44:51
crystalhert(½ð±Ò+15): 1 2011-04-29 09:58:12
Nozzles vent & drains shall be supplied with blind flanges, bolting and gaskets at high/low pointsof shells and channels. For stacked units, provide a vent nozzle in each shell.
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3Â¥2011-04-27 08:44:30
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clzkzy

ľ³æ (ÕýʽдÊÖ)

С¶þºÚ

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Originally posted by yinjuanchen at 2011-04-27 08:44:30:
Nozzles vent & drains shall be supplied with blind flanges, bolting and gaskets at high/low pointsof shells and channels. For stacked units, provide a vent nozzle in each shell.
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4Â¥2011-04-27 09:41:22
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yinjuanchen

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

ÒýÓûØÌû:
Originally posted by clzkzy at 2011-04-27 09:41:22:
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5Â¥2011-04-27 10:31:19
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clzkzy

ľ³æ (ÕýʽдÊÖ)

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ÒýÓûØÌû:
Originally posted by yinjuanchen at 2011-04-27 10:31:19:
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