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Verfügbare Sprachen
Verfügbare Sprachen
DN Inch
2
2½
mm
50
65
mm
61
71
Di
mm
107
127
Da
If – in exceptional cases – a valve without drive unit must be installed, it must be ensured that
such a valve is not exposed to pressure. If a drive unit is retrofitted the nominal torque and the
setting of the final stops must be tuned to "OPEN" and "CLOSED" of the valve.
Danger
Non-observation this regulation may result in danger of life and health and may cause damage
to Life
in the piping system.
4.2
Preparations
It must be ensured that only such Garlock valves are installed whose pressure class, connection type and
dimensions are compliant with the conditions of application. See marking of the valve.
No valve may be installed which permitted pressure-temperature limits are not sufficient for
the operating conditions: The pressure- and temperature limits are marked on the valve, the
permitted range of application depending on the lining material (see type label) is described in
the Garlock planning documents – see paragraph 9 <Further information>.
Non-observation this regulation may result in danger for life and health and may cause damage
in the piping system.
Danger
to Life
In case of doubt, please contact Garlock.
– Take Garlock valves out of their original packaging and remove all accompanying materials and clean off
any dirt.
– Check Garlock valves for transport damage. Do not install damaged valves.
– Following prolonged storage of approx. six months or more, retighten the housing screws before installation
to the torques specified in point 7.1.
– Garlock butterfly valves are designed to be fitted between flanges as per EN 1092-1 (DIN 2501) PN 10
(PN16) / ASME B 16.5 class 150 as standard.
MOBILE-SEAL valves can also be used installation between flanges according to DIN 28459. Other flanges
may only be used upon release by Garlock.
The inside diameter of the piping (flanges) must be bigger than the part of the valve disc, which
in an opened position extends over the valve, ensuring the valve disc is not damaged when
moving outward. See measurement C of the following table.
If necessary, use intermediate rings.
Danger
The installation space between the flanges must provide sufficient clamping width = width of
the body lining. See measurement A of the following table.
If necessary, use intermediate rings.
Attention
Inch
2
2½
DN
mm
50
65
A
mm
43
46
C
mm
43
53
3
4
5
6
80
100
125
150
83
106
128
158
142
162
192
218
Garlock recommends a seal thickness of 3.2 mm.
3
4
5
6
80
100
125
150
46
52
56
56
67
93
115
147
8
10
12
14
200
250
300
350
208
259
310
336
273
328
378
438
8
10
12
200
250
300
350
60
68
78
188
236
284
322
20
16
18
20
400
450
500
388
431
485
490
540
595
14
16
18
20
400
450
500
92
102
114
127
374
415
467
Leaders in Sealing Integrity
24
600
579
695
24
600
154
558
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