Vaisala MM70 User Manual download pdf (Page 17)

Chapter 3 ____________________________________ INSTALLATION AND MOUNTING OPTIONS

measurements in pipelines. The maximum installation pressure is 10

bar and the maximum operation pressure is 20 bar.

0605-086

Figure 4 MMP78 Pipe Dimensions (in mm); 400 mm

(adjustment range 340 mm)

The following numbers refer to Figure 4 on page 15.

1 = Clasp nut, 27 mm hex nut)

2 = Fitting body, 24 mm hex head

Tightening the Clasp Nut

1. Adjust the probe to a suitable depth according to the type of

installation and tighten the clasp nut first manually.

2. Tighten the clasp nut first manually. Mark the fitting screw and

the clasp nut. Tighten the nut a further 30 - 40° (ca.1/12" turn)

with a plastic wrench. If you have a suitable torque spanner,

tighten the nut to max 35±5 Nm (25±4 ft-lbs).

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Vaisala MM70 User Manual Page 17