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Specifications
The Specifications table lists the specifications for the detonation flame arrestors. Some, or all, of the following
information is stamped on the nameplate attached to the arrestor: model number, flange size and rating, maximum initial
operating pressure, EN number (European Standard), EU type examination certificate, notified body number, gas group,
date of manufacture and serial number; other identification and customer tag number are optional.
Available Constructions
See Table 1 and Figure 3
Gas Group
D (IIA), C (IIB3) and B(IIC)
Flange Sizes and rating
1 to 24 in. / 50 to 600 mm
CL150
Housing Size
4 to 48 in. / 100 to 1200 mm
Maximum Experimental Safe Gap (MESG)
See Table 2
Maximum initial Operating Pressure
(1)
See Table 3
Maximum Ambient Air Temperature
140°F / 60°C
Temperature rating of Gasket
(1)
Fiber Gaskets (standard):
450°F / 232°C
Graphite/Metal (optional):
1600°F / 870°C
Burning rating
See Table 3
Housing Material
Carbon steel, 304 Stainless steel,
316 Stainless steel and Hastelloy
®(2)
Element Material
304 Stainless steel, 316 Stainless steel
and Hastelloy
®(2)
Certification
(3)
EN 12874 ATEX Certified
(4)(5)
U.S. Coast Guard (USCG) Approved
(4)(5)
1. The pressure/temperature limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. Hastelloy
®
housings and element material are not USCG approved.
3. Not all models are available with USCG and ATEX certifications. Contact your local Sales Office for more information.
4. USCG and ATEX approval report(s) are available upon request.
5. Flow test data available upon request.
Hastelloy
®
is a mark owned by Haynes International, Inc.
Table 1.
Enardo DFA Series Detonation Flame Arrestor Available Construction (USCG/ATEX Approved)
(1)
MODEL
(2)
FLAnGE SiZE
HOUSinG SiZE
USCG
ATEX
in.
mm
in.
mm
D
C
B
iiA
iiB3
Enardo DFA-0401
1
25
4
100
Enardo DFA-0602
(3)
2
50
6
150
Enardo DFA-0802
2
50
8
200
Enardo DFA-0803
3
75
8
200
Enardo DFA-1004
4
100
10
250
Enardo DFA-1206
6
150
12
300
Enardo DFA-1608
8
200
16
400
Enardo DFA-2010
10
250
20
500
Enardo DFA-2412
12
300
24
600
Enardo DFA-2814
14
350
28
700
Enardo
DFA-3016
16
400
30
750
Enardo DFA-3418
18
450
34
850
Enardo
DFA-3620
20
500
36
900
Enardo DFA-4824
(3)
24
600
48
1200
1. Not all models are available with USCG and ATEX certifications. Contact your local Sales Office for more information.
2. Includes eccentric construction.
3. Eccentric construction not USCG or ATEX certified.
2
Enardo DFA Series
Outside North
America Only