Vaisala HMP228 User Manual

Page 13

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HMP228

Operating Manual

See Figures 2.2.3.2 - 2.2.3.4 for detailed description of installation through the
ball valve assembly. Note also that if the sensor head is installed in a process
pipe, the nominal size of the pipe must be at least 1 inch.

•

STEP I: mount the probe with the ball valve assembly closed

bushing R1/2 cone/ G1/2 (40 bar)

e.g. Camozzi 2520-1/2-1/2

(the bushing serves for

moving the probe (sinter)

so such a distance from the

ball valve that the valve

can be closed)

NOTE

tighten the clasp

nut manually

fitting body

R1/2 cone, sealed

ball valve 1/2" (40 bar)

e.g. Atlas Copco:

BAL-1A 15 (G1/2)

bushing

R1/2 cone,

sealed

nipple

R1/2 cone,

sealed

> 30 mm

welded nipple

diam. 21.3 x S

material: steel

or AISI 304L

the nipple edges have

to be rounded

Figure 2.2.3.2

Installing the probe through the ball valve

assembly; step 1