Artidor AR-081 Mode D'emploi page 6

3. Characteristics
The AR-081 type bulkhead fitting provides an explosion-safe open channel but with
extremely low flow resistance for gases and liquids.
E
The bulkhead fitting acts as a flame arrester and is specially designed for mounting in walls
of flameproof enclosures with protection degree Ex d, gas group IIA, IIB or IIC. In the event
of an explosion inside the explosion-proof enclosure in which the bulkhead fitting has been
mounted, it will prevent flames from breaching through to the surrounding atmosphere.
The bulkhead fitting AR-081 offering an unimpeded flow may be desirable in cases where a
sampling line must be lead into an Ex d enclosure, or where over or under pressure inside
the enclosure must be equalized with the surrounding atmosphere ("breather"), or for
draining condensation ("drain").
When used as a sampling line transit the female threaded (NPT) on both ends can be used
for installation of a tubing connector. The quality of this connector and its hose or tubing does
not affect the flame arresting function of the AR-081.
The features of the bulkhead fitting are:
•
Flame arresting properties combined with extreme low resistance to flow of gases and
liquids
•
To be mounted in the wall of flameproof 'Ex d' enclosures
•
Stainless steel AISI 316
•
The external thread allows direct mounting in a flameproof housing
•
Both ends are provided with female thread for installation of pipe line or tubing
connectors
•
Standard type of thread (NPT)
•
Can be cleaned
•
Modern industrial design
The functions for which the bulkhead fitting can ideally be used are listed in the table below.
Function
Sample line
A
transit
Installation manual AR-081 bulkhead fitting
6 / 44
Picture Explanation
For flameproof 'Ex d' transit of a
pipe line through the wall of a
flameproof 'Ex d' enclosure.
03-2024