LPG
Technical Details
5.221
FLEXWELL®-LPG Pipe Systems for Petrol Station
s
End coupling
screwed, with graphite sealing, connection: collar and split flang
e
Heat resistant up to –50 °C, nominal pressure 25 ba
r
Heat shrink tube or
corrosion protection tape
D
2
D
1
d
k
D
3
l
min. standard gauge = L min.
Material composition
:
Connecting piece with collar cryogenic steel 25CrMo4 (No. 1.7218) nickel-plate
d
Pressure ring
cryogenic steel 25CrMo4 (No. 1.7218) nickel-plate
d
Sealing ring
graphite (SIGRAFLEX F...Z)
Core piece
stainless steel (No. 1.4571)
Clamping ring
cryogenic steel 25CrMo4 (No. 1.7218) nickel-plate
d
split
flange
fine grained steel P355NL2 (No. 1.1106) nickel-plated
Installation advice split flange
:
The split
flanges have to be installed in a 90° o
ffset pattern
End coupling GRAPA with split flange acc. to EN 1092-
1
Type
Pipeline
l
L min. Flange Screws
d
D1
D2
D3
k
Article No
.
DN
mm
mm
DN
mm
mm
mm
mm
m
m
LPG 22/33
20
140
220
20
4 x M12 x 65
58.0
55
61
105
75
1014391
LPG 30/40
25
144
230
25
4 x M12 x 70
68.0
65
71
115
85
1014398
LPG 39/50
32
155
240
32
4 x M16 x 75
73.1
81
87
140
100
1014406
LPG 48/61
40
176
260
40
4 x M16 x 75
88.0
93
99
150
110
1014414
LPG 60/74
50
181
260
50
4 x M16 x 80 102.0
109
115
165
125
1014420
End coupling GRAPA with split
flange acc. to ANSI B16.5 - 300 l
b
Type
Pipeline
l
L min. Flange Screws
d
D1
D2
D3
k
Article No.
DN
mm
mm
DN
mm
mm
mm
mm
m
m
LPG 22/33
20
140
220
20
4 x M16 x 70 42.9
55
61
117.3
82.5
1014390
LPG 30/40
25
144
230
25
4 x M16 x 75 50.8
65
71
123.9
88.9
1014397
LPG 39/50
32
155
240
40
4 x M20 x 80 73.1
81
87
155.4
114.3
1014405
19.03.2026 Subject to technical changes. Page 8
