Signs and hazard areas on the dryer
14
HDK-CNG_EN_03_2016
Using the heating element
As a pressure device prone to overheating, the heating element is subject to
special requirements. The operating company must therefore ensure that the
requirements stipulated in the Pressure Equipment Directive are observed and
applied.
The heating element must only be used for the purpose specified in the data
sheet. The heating element must not be placed into operation before the
operating medium is flowing under operating conditions.
If the heating element is to be placed into storage, it must be stored in a dry
and heated room. The heaters in particular must be protected from moisture.
For this purpose, a drying agent is to be additionally placed in the wiring box
that should be replaced or reconditioned at regular intervals.
The operating company must ensure compliance with the inspection intervals.
Disassembly and disposal
Hazard caused by escaping gas!
Never remove any parts of the dryer, or manipulate the same in any way,
for as long as the plant is still pressurised! Sudden escapes of gas can
lead to combustible/flammable atmospheres in the area surrounding the
dryer!
The Ex zone must be cancelled prior to disassembly of the dryer.
Dispose of all parts of the dryer, the drying agent and all other operating in an
environmentally responsible manner and in accordance with the current legal
regulations.
Signs and hazard areas on the dryer
Hazard areas on the dryer
Hazard area
Symbol in
operating
instructions
Warning of escaping natural gas
The high-pressure dryer is operated by natural gas. During all work on the dryer,
note the safety data sheets and safety instructions for working with natural gas.
Warning against overpressure
The entire dryer is under pressure. Before commencing any work, the plant must
be depressurised.
Warning of explosive atmosphere/potentially explosive gas
In a potentially explosive environment, and for the purification of explosive gases,
only use dryers that comply with the corresponding ATEX code. These dryers
must be connected to the customer's own earthing/grounding system (potential
compensation on company premises).
