Flanged Connections for steel pipes
Working pressure:
up to PN 16
Material:
Flange:
see table on right
epoxy powder coated
Sleeve gasket:
elastomer, suitable for
potable water
These Hawle flanges are a further development of the well
proven Hawle Spar Flanges.
The long draw of fitting and the double chambered gasket result in
the pressure being spread well back from the pipe end.
The resilience of the connection prevents tension in the pipe and
minimises the danger of breakage.
Flange Adaptor
restraint
to PN 16
1
2
3
4
5
No. 7601
Material:
1 Flange: ductile iron,
epoxy powder coated
2 Grip ring:
steel 1.0037 hardened
3 Sleeve gasket: elastomer, suitable for potable water
4 Pressure ring: ductile iron
5 Seal: elastomer, suitable for potable water
Flange
Adaptor
restraint
Order no.
7101
Order no.
7601
Steel pipe Ø mm
to PN 16
Double
Chamber
Flange
Adaptor
Flange DN
Double
Chamber
Flange Adaptor
No. 7101
40
48
50
56-57

S
50
59-61

S
60
67
65
66-68
65
76
80
89
100
108

100
114
125
133
150

Spar Flange
picture see over page
standard
reducing
Order no.
0101
Order no.
1001

G

G
S


S

S

G
S

S

G

S

S¹

G

S
159

S

G
150
168

S
200
219

S¹
250
267

G
250
273
x
S*
300
316

G
400
406

S
400
419

G
500
508

G


G
S*
x
G
S*
Explanation:
* also available in PN 16
S of ductile iron
G of grey iron
x see picture G 3/1
¹ Flanges with an extended hole circle are not suitable for use with fixed studs.
Standard version:
PN 10 - DIN 2501
special dimensions:
on request
Simultaneous pipe restraint and sealing.
This avoids the need for pipe supports and additional bolting to
counter the effect of axial load and pressure.
This connection can be easily dismantled at any time.
Assembly: Assemble the flange with the sleeve gasket and pressure
ring, and push onto the pipe. Offer up the complete flange to the opposing flange, ensuring that the pressure ring projects approx.
10 mm over the end of the pipe. Cross tighten the nuts and bolts
to make the connection. This fitting has the advantage that it can cope with a
gap or unsquare cut that extends up to 15 mm from the opposing flange.
Note: do not chamfer the pipe
4. 2007
G 4/1
Flanged Connections for steel pipes
No. 7101
No. 0101
No. 1001
No. 7101 / No. 0101
Flange
DN
Steel
Pipe
Ø mm
40
50
50
60
65
80
100
100
125
150
200
250
300
400
400
500
48
56-57
59/61
67
76
89
108
114
133
159
219
267
316
406
419
508
D - No.
7101
0101
150
165
165
175
185
220
220
250
200
220
285
340
400
455
565
565
690
K
110
125
125
135
145
160
180
180
210
240
295
350
400
515
515
620
Bolts
b - No. ˜ L (assembled)
7101
7101
26
26
54
54
28
56
25
23
33
63
63
64
30
71
49
82
Weight kg - No.
0101
Qty.
Thread
30
4
4
4
4
4
8
8
8
8
8
8
12
12
16
16
20
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 16
M 20
M 20
M 20
M 20
M 24
M 24
M 24
37
37
38
45
48
60
60
76
7101
0101
0,9
2,6
2,6
2,5
3,5
3,8
3,5
6,8
3,2
4,4
7,5
8,6
14,5
18,5
22,0
36,5
43,0
No. 1001
Bolts
Flange
DN
Steel pipe
Ø mm
D
K
˜L
with reducer
Qty.
Thread
Weight
kg
65
66-68
185
145
60
4
M 16
5,0
Weight including reducing ring
with reducing ring
No. 7601
No. 7601
Steel pipe
Ø mm
D
K
b
˜L
(unassembled)
Qty.
Thread
Weight
kg
50
65
80
100
100
125
150
150
200
60
76
89
108
114
133
159
168
219
165
185
200
220
220
250
285
285
340
125
145
160
180
180
210
240
240
295
39
38
39
39
44
39
49
52
52
61
61
67
69
69
69
73
73
81
4
4
8
8
8
8
8
8
8
M 16
M 16
M 16
M 16
M 16
M 16
M 20
M 20
M 20
2,7
3,4
3,9
4,6
4,4
5,8
7,8
7,3
10,0
Illustrations, technical data, dimensions and weights are subject to alteration without notice.
G 4/2
Bolts
Flange
DN
4. 2007