KROHNE H250 M40 EN - Manual (Page 70)

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TECHNICAL DATA
70
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
Bolts and tightening torques
For measuring devices with PTFE liner or ceramic liner and PTFE raised face, tighten the flange
threads with the following torques:
Nominal sizes EN
Nominal size ASME
Pressure tightness (vacuum) H250/C
Stud bolts Tightening torques
Nominal size acc. to EN 1092-1 Quantity x size [Nm] [lb-ft]
DN15 PN40 1 4x M12 9.8 7.1
DN25 PN40 1 4x M12 21 15
DN50 PN40 1 4x M16 57 41
DN80 PN16 1 8x M16 47 34
DN100 PN16 1 8x M16 67 48
1 standard connections; other connections on request
Stud bolts Tightening torques
Nominal sizes acc. to ASME B
16.5 Quantity x size [Nm] [lb-ft]
150 lb 300 lb
½ " 150 lb / 300 lb 1 4x ½" 4x ½" 5.2 3.8
1" 150 lb / 300 lb 1 4x ½" 4x 5/8" 10 7.2
2" 150 lb / 300 lb 1 4x 5/8" 8x 5/8" 41 30
3" 150 lb / 300 lb 1 4x 5/8" 8x ¾" 70 51
4" 150 lb / 300 lb 1 8x 5/8" 8x ¾" 50 36
1 standard connections; other connections on request
Max. process temperature +70°C (+158°F) +150°C (*302°F) +250°C (+482°F)
Min. operating pressure
Nominal
meter size Float Lin
er [mbar
abs.] [psia] [mbar
abs.] [psia] [mbar
abs.] [psia]
DN15...DN100 PTFE PTFE 100 1.45 - - - --
DN15...DN80 Ceramic PTFE 100 1.45 250 3.63 - -
DN15...DN80 Ceramic TFM /
Ceramic
100 1.45 100 1.45 100 1.45
MA_H250_M40_R02_en_640702_PRT.book Page 70 Wednesday, November 28, 2012 12:23 PM