KROHNE H250 M8-M9-M10 EN - Manual (Page 17)

INSTALLATION
3
17
H250
www.krohne.com 04/2011 - 4000269302 MA H250-R02 en
Take special note of the installation position for the H250H with horizontal flow
direction:
In order to comply with thermal parameters and measuring accuracy, H250H flowmeters for
horizontal installation are to be installed in the pipeline so that the display is located on the side
of the measuring tube. The maximum medium and ambient temperatures indicated as well as
the measuring accuracy are based on lateral installation of the display.
3.3.1 Tightening torques
For measuring devices with PTFE liner or ceramic liner and PTFE raised face, tighten the flange
threads with the following torques:
Nominal size acc. to Bolts Max. torque
EN 1092-1 ASME B16.5 EN
1092-1
ASME EN 1092-1 ASME 150 lb
DN PN Inches lb 150 lb 300 lb Nm ft*lbf Nm ft*lbf
15 40 ½ " 150/300 4 x M 12 4 x ½" 4 x ½" 9.8 7.1 5.2 3.8
25 40 1" 150/300 4 x M 12 4 x ½" 4 x 5/8" 21 15 10 7.2
50 40 2" 150/300 4 x M 16 4 x 5/8" 8 x 5/8" 57 41 41 30
80 16 3" 150/300 8 x M 16 4 x 5/8" 8 x ¾" 47 34 70 51
100 16 4" 150/300 8 x M 16 8 x 5/8" 8 x ¾" 67 48 50 36
MA_H250_R02_en_269302_PRT.book Page 17 Tuesday, April 12, 2011 10:17 AM