GAS 222.31
3 Transport and storage
Only transport the product inside the original packaging or a
suitable alternative.
The equipment must be protected from moisture and heat
when not in use. They must be stored in a covered, dry and
dust-free room at a temperature between -20 °C to 50 °C (-4 °F
to 122 °F).
4 Installation and connection
4.1 Installation site requirements
Sample gas probes are intended for flange mounting.
• Installation site and installation position are determined
based on requirements specific to the application.
• If necessary, the connection piece should be slightly tilted
toward the centre of the channel.
• The installation site should be protected from the
weather.
• In addition, adequate and safe access for installation and
future maintenance work should be provided. Particularly
follow the uninstalled size of the probe tube!
If the probe is transported to the installation site in pieces, it
will first need to be assembled.
4.2 Installing the upstream filter
The upstream filter, if necessary with matching extension,
must be screwed in. The probe is then attached to the mating
flange using the included seals and screws.
4.3 Insulation
On heated probes completely insulate any exposed flange
areas and, if applicable, the connection piece to absolutely
prevent thermal bridges. The insulating material must meet
the application requirements and be weatherproof.
4.4 Connecting the Gas Line
The sample gas line must be carefully and properly connected
using a suitable fitting.
This table provides an overview of the sample gas probe con-
nections:
Probe
GAS 222
Reservoir
PAV01
Ball valve
pneumatic
drive
Control
valve
3/2-way
solenoid
valve
Connecting
flange
1)
DN65/PN6/
DN3“-150
2)
Sample gas
inlet
G3/4
Sample gas
outlet
NPT 1/4
Blowback
connection
G3/8
Test gas
connection
1)
Tube Ø6
mm
Tube Ø1/4
2)
Filling port
NPT 1/4
Condensate
G1/2
Bypass
NPT 1/4
Control air
G1/8
G1/4
NPT 1/4
Tab. 1:
Gas Probe Connections (Varies by Model)
1)
Varies by version.
2)
Only GAS 222.xx ANSI and GAS 222.xx AMEX
WARNING
Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
4.4.1 Blowback Connection
Without accessories installed for the blowback device, the
blowback connection comes with a sealed G3/8 screw-in con-
nection. If you require blowback, you will need to undo this
screw-in connection and ensure the blowback line is connec-
ted properly and tight.
DANGER
Toxic, corrosive gasses
Explosive or toxic gases can develop due to a leaking or open
blowback connection.
9
Bühler Technologies GmbH
BX460061 ◦ 09/2021
