Instruction manual

Accessories
76 Installation and Operations Manual
9.5 Mounting with Sample Hatch on Stilling Well
9.5.1 Installation hints
For control and cleaning purposes for sample taking as well as for hand dipping (tape),
a sample hatch is recommended. The sensor head can be easily checked in the area of
the opening. Manual gauging with gauge rod or tape is possible without removal of the
transmitter. The lower edge of the opening is the reference for the gauging. The
construction is only suitable for non-pressurized operation.
Note The sample hatch is not part of the standard offering from Varec.
Please contact Varec for further information.
Figure 9-2: Installation Hints
Table 9-1: Flange and Standard Dimensions
Flange DN150 DN200 DN250/300 Flange ANSI 6" ANSI 8" ANSI 10"
PN [bar]
1
16 16 16 PN [lbs]
1)
150 150 150
A [mm] 110 140 170 A [mm] 110 140 170
L [mm] — 300 450 L [mm] — 300 450
1. Only dimensions adapted to standard. Designed for non-pressurized operation only;
therefore, the thickness of flange can be reduced (e.g. 8 mm).
device side
DN
opening
measuring
line
quick opening
device
door with
seal
flange size
according to tank
shown without door
tank nozzle
stilling well
250100 0.5
A
30075
500 + L