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Figure 2. Cut-away view of Enardo DFA Series Detonation Flame Arrestor
Detonation
Housing
Flame
Size
Arrestor
Enardo DFA =
04 = 4 in.
Concentric
through
48 = 48 in.
Enardo DFAE =
Eccentric
Note: Not all models are available with USCG and ATEX certifications. Contact your local Sales Office for more information.
Figure 3. Enardo DFA Series Detonation Flame Arrestor Available Constructions and Model Numbering System
Markings
nameplate information
A nameplate will be attached to the arrestor and will
contain the following information:
• Model number: Ex. DFA 1206/D (see model
information above)
• Flange Size and rating: Ex. 6 in. CL150
• Maximum initial Operating Pressure, P
• En number: Ex. ISO EN 16852 (if applicable) or
EN 12874
• EU Type Examination Certificate (if applicable)
• notified Body number (if applicable): Ex. 0518
• Gas Group: Ex. IIA or IIB3, D, C
• Date of Manufacture
• Serial number
• Other identification (Optional)
• Customer Tag number (Optional)
Hastelloy
is a mark owned by Haynes International, Inc.
®
1. Hastelloy
housings are not USCG approved.
®
2. Hastelloy
element material is not USCG approved.
®
/
-
Connection
nEC
Size
Gas
Group
01 = 1 in.
D (IIA)
through
C (IIB3)
24 = 24 in.
B (IIC)
O
Housing
Element
Material
Material
C = Carbon steel
4 = 304 SST
4 = 304 SST
6 = 316 SST
6 = 316 SST
H = Hastelloy
®(2)
H = Hastelloy
®(1)
Figure 4. Product Identification and Marking for ATEX Units
Enardo DFA Series
-
Connection
Options
Type
F = Flat face
1 = Drain Plug
flange
2 = Pressure Tap
3 = Temperature Probe Tap
R = Raised face
4 = Miscellaneous
flange
5 = Protective coating
6 = Special feature
HAZArDOUS LOCATiOnS
3
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