GESTRA
GESTRA Steam Systems
NRGT 261
NRGT 261S
Installation Instructions 81021304
Level electrode
NRGT 26-1, NRGT 26-1 S
1
2
Contents
Page
Important Notes
Usage for the intended purpose ..............................................................................................................4
Safety note .............................................................................................................................................4
Danger ...................................................................................................................................................4
Attention .................................................................................................................................................4
ATEX (Atmosphère Explosible) .................................................................................................................4
Explanatory Notes
Scope of supply ...................................................................................................................................... 5
System description ................................................................................................................................. 5
Function .................................................................................................................................................5
Designs ..................................................................................................................................................5
Technical Data
NRGT 26-1, NRGT 26-1S ....................................................................................................................
Corrosion resistance ............................................................................................................................... 7
Sizing .....................................................................................................................................................7
Name plate / marking ............................................................................................................................. 8
Dimensions ............................................................................................................................................. 9
Design
NRGT 26-1, NRGT 26-1S ......................................................................................................................10
Key .......................................................................................................................................................12
Functional Elements
NRGT 26-1, NRGT 26-1S ......................................................................................................................11
Key .......................................................................................................................................................12
Installation
NRGT 26-1 ...........................................................................................................................................13
NRGT 26-1S .........................................................................................................................................13
Attention ...............................................................................................................................................13
Note .....................................................................................................................................................13
Tools .....................................................................................................................................................13
Examples of installation ........................................................................................................................ 14
Key .......................................................................................................................................................15
6, 7
Contents – continued –
Page
Wiring
NRGT 26-1, NRGT 26-1S ......................................................................................................................16
Wiring diagram ..................................................................................................................................... 16
Attention ...............................................................................................................................................16
Tools .....................................................................................................................................................16
Basic Setting
Factory setting NRGT 26-1 ....................................................................................................................17
Factory setting NRGT 26-1S .................................................................................................................. 17
Establish active measuring range (control range) ..................................................................................17
Attention ...............................................................................................................................................17
Commissioning
Danger .................................................................................................................................................18
Check wiring ........................................................................................................................................18
Apply mains voltage..............................................................................................................................18
Adjust lower measuring range ..............................................................................................................18
Adjust upper measuring range .............................................................................................................. 18
Note .....................................................................................................................................................18
Operation
NRGT 26-1, NRGT 26-1S ......................................................................................................................19
Note .....................................................................................................................................................19
Operational Malfunctions
Fault finding list for troubleshooting ......................................................................................................20
Decommissioning
Danger .................................................................................................................................................21
Disposal................................................................................................................................................21
Annex
Declaration of conformity ......................................................................................................................22
3
4
Important Notes
Usage for the intended purpose
Use level electrodes NRGT 26-1 and NRGT 26-1S only for indicating liquid levels.
Safety note
The equipment must only be installed and commissioned by qualified and competent staff.
Retrofitting and maintenance work must only be performed by qualified staff who – through
adequate training – have achieved a recognised level of competence.
Danger
When loosening the electrode steam or hot water might escape.
This presents the danger of severe scalds to the whole body.
It is essential not to mount or dismantle the electrode unless the boiler pressure is
verified to be 0 bar. The electrode becomes hot during operation. Touching the hot
equipment presents the risk of severe burns to hands and arms. All installation and
maintenance work must only be performed when the equipment is cold.
The terminal strip of the NRGT 26-1 / NRGT 26-1S is live during operation.
This presents the danger of electric shock.
Cut off power supply before fixing or removing the housing cover.
Attention
The name plate specifies the technical features of the equipment. Note that any piece of
equipment without its specific name plate must neither be commissioned nor operated.
ATEX (Atmosphère Explosible)
According to the European Directive 94/9/EC the equipment must not be used in potentially explosive
areas.
Explanatory Notes
Scope of supply
NRGT 261
1 Compact system type NRGT 26-1
with joint ring (of stainless steel 1.4301) D 27 x 32 to DIN 7603, bright annealed
1 Installation manual
NRGT 261S (for marine applications)
1 Compact system type NRGT 26-1S with flange DN 50 (2"), PN 40 to DIN 2635
1 Installation manual
System description
The compact system NRGT 26-1 works according to the capacitance measurement principle.
The NRGT 26-1 is used for signalling different levels in electrically conductive and non-conductive
liquids:
■
Level maintained within the control band defined by two preset limits
The NRGT 26-1 has a level transmitter integrated in the electrode body which produces a standard
signal of 4 -20 mA. External switchgear is not required.
Function
The principle of capacitance measurement is applied to determine the level. The electrode rod and
the vessel wall form a capacitor. If the level of the dielectric located between the two capacitor plates
changes, the current which flows through the plates changes proportionally to the level. A dielectric
is defined as an insulating substance, which excludes many liquids such as water. In order to receive
a useful measuring result the measuring rod, which is submerged to varying depths in the liquid,
must be completely insulated. After the calibration of the zero point/measuring range (0 %/100 %)
the level can be read off from a remote display unit. The level measuring range can be changed
during operation.
Designs
NRGT 261:
Screwed design ¾" BSP, DIN ISO 228-1.
NRGT 261S:
Flanged design for marine application DN 50, PN 40, DIN 2635. Fig. 3
Fig. 2
5
6
Technical Data
NRGT 261, NRGT 261S
Type Approval N°
NRGT 26-1: TÜV · WRS · 02-391
NRGT 26-1S: LR 98/20075 RINA ELE/30298/2
GL 99249-96HH BV 10617/AO BV
NKK A-556 DNV A-8394
KR HMB 06190-MS002
Max. service pressure
32 bar g at 238 °C
Connections
NRGT 26-1: Screwed ¾" BSP, DIN ISO 228-1
NRGT 26-1 S: Flanged DN 50, PN 40, DIN 2635
Materials
Case: Die cast aluminium 3.2161 (G AlSi8Cu3)
Stem: S. S. 1.4571 CrNiMoTi17-12-2
Flange: Forged steel 1.0460 P250GH
Measuring electrodes: S. S. 1.4571 CrNiMoTi17-12-2
Electrode insulation: PTFE
Spacer disc: PTFE (design for marine applications)
Mains supply
230 V +/- 10 %, 50/60 Hz
115 V +/- 10 %, 50/60 Hz (option)
224 V +/- 10 %, 50/60 Hz (option)
24 V DC
Length supplied / measuring range
NRGT 261
1 Max. installation length at 238 °C
2 Measuring range
1 2 3 4
300
373
400
477
500
583
600
688
700
794
800
899
900
1004
1000
1110
1100
1214
1200
1319
1300
1423
1400
1528
1500
1636
2156
2000
See Fig. 2
NRGT 261 S
3 Max. installation length at 238 °C
4 Measuring range
316
420
526
631
737
842
947
1053
1157
1262
1366
1471
1579
2099
275
375
475
575
675
775
875
975
1075
1175
1275
1375
1475
1975
See Fig. 3
Technical Data – continued –
NRGT 261, NRGT 261S – continued –
Power consumption
5 VA, 3 VA at 24 V DC
Fuse
Thermal fuse T
Sensitivity
Range 1: Water
Range 2: Water
Range 3: Fuel oil EL
Output
4 – 20 mA level-proportional; electrically insulated, max. load 500 Ω
Indicators and adjustors
2 red LEDs for “level 0 %” or “level 100 %” within the measuring range,
1 green LED for “level between 0 % and 100 %” of measuring range,
1 code switch for selecting the measuring range,
2 trimmer potentiometers for small-percentage adjustment of the measuring range,
2 terminal lugs for voltage measurement.
Cable entry
Cable gland with integral cable clamp
2 x M20 x 1.5
Protection
IP 65 nach DIN EN 60529
Max. admissible ambient temperature
70 °C (158 °F)
Weight
NRGT 26-1: approx. 1.8 kg
NRGT 26-1S: approx. 8.0 kg
= 102 °C
max
≥ 0,5 µS/cm
≥ 20 µS/cm
εr 2,3
Corrosion resistance
Provided that the equipment is used for its intended purpose, its safety is not impaired by
corrosion.
Sizing
The body must not be subjected to sharp increases in pressure. Welds and flanges of the electrode are
designed to withstand dynamic loading (bending and alternating stress). The dimensional allowances
for corrosion reflect the latest state of technology.
7
8
Technical Data – continued –
PN 40PN 40
PN 40PN 40
IP 65IP 65
PmaxPmax
TmaxTmax
NRGT 26-1
NRGT 26-1S
TÜV . WRS.
02-391
G ¾ 1.4571
DN 50 1.4571/1.0460DN 50 1.4571/1.0460
250 V ~ T 2,5 A250 V ~ T 2,5 A
Before removing cover
isolate from power supplies
See installation instructions
Before removing cover
isolate from power supplies
See installation instructions
Avant d'ouvrir le couvercle
dèconnecter complètement
l'appareil
Voir instructions de
montage
Avant d'ouvrir le couvercle
dèconnecter complètement
l'appareil
Voir instructions de
montage
32 bar (464psi)
238°C (453°F)
Tmax
70°C
(133°F)
Tmax
70°C
(133°F)
GL 99249-96 HH
Vor Öffnen des Deckels
Gerät freischalten!
Betriebsanleitung
beachten
Vor Öffnen des Deckels
Gerät freischalten!
Betriebsanleitung
beachten
50 / 60 Hz 5VA
GB Reg. Design 2 053 113
US Pat. 5 719 342, Design 383 403
GB Reg. Design 2 053 113
US Pat. 5 719 342, Design 383 403
H= _ _ _ _ _ _ _ _ _ _ mm
4 - 20 mA / 500
24 V 230 V115 V
GESTRA AG,
D-28215 Bremen
24 VDC
IP 65IP 65
PmaxPmax
TmaxTmax
NRGT 26-1
TÜV . WRS.
02-391
PN 40 G ¾ 1.4571
250 V ~ T 2,5 A250 V ~ T 2,5 A
Before removing cover
isolate from power supplies
See installation instructions
Avant d'ouvrir le couvercle
dèconnecter complètement
l'appareil
Voir instructions de
montage
32 bar (464psi)
238°C (460°F)
Tmax
70°C
(158°F)
GL 99249-96 HH
Vor Öffnen des Deckels
Gerät freischalten!
Betriebsanleitung
beachten
H= _ _ _ _ _ _ _ _ _ _ mm
4 - 20 mA / 500
Ser.-Nr.: 316141
0525
GESTRA AG
Münchener Str. 77
D-28215 Bremen
3VA
Vers.XX
Name plate / marking
Fig. 1
42
Flansch
PN 40, DN 50
62
~
338
140
173
GESTRAStea mSystems
GESTRA
NRGT 26-1S
G 3/4
ISO 228-1
173
140
26
37
Tiefe: 70 mm
42
GESTRAStea mSystems
GESTRA
NRGT 26-1
~
338
Technical Data – continued –
Dimensions
173
140
337,5
∅ 42
37
¾" BSP
b = 70
A.F.
339
∅ 42
62
173
140
b = 70
Flange DN 50, PN 40
1 2
3 4
26
2, 4 constant length (no elongation)
Fig. 3Fig. 2
9
10
GESTRASt eamSystems
GESTRA
NRGT 26-1S
GESTRASt eamSystems
GESTRA
NRGT 26-1
Design
NRGT 261, NRGT 261S
A.F.
Fig. 4
D
C
B
A
Fig. 5
Fig. 6
∅ 33
¾" BSP DIN 228
N 1
A
E
F
G
0.5
N 10
Functional Elements
NH
GESTRA
NRGT 26-1
GESTRA Steam Syste ms
1
2
3
4
6
7
8
9
0
5
1 2
3 4
5
Q
L
NRGT 261, NRGT 261S
H I J I
Fig. 7
Shown:
24, 115, 230 V AC version
KLM N OPQ
U
T S
R
Fig. 8
11
12
Design / Functional Elements
Key
Thermal insulation provided on site, d = 20 mm (without thermal insulation of steam boiler)
A
B Seating surface
C Joint ring (of stainless steel 1.4301) D 27x 32 to DIN 7603
D Electrode thread ¾" BSP, DIN ISO 228-1
E Flange DN 50 (2"), PN 40 to DIN 2635
F Protection tube
G Spacer disc
H Housing screws M4
I Cable entry M20 x 1.5
J Housing cover
K Measuring range switch
L Potentiometer for lower measuring point (4 mA)
M LED “Level 0 %”
N LED “Level > 0 %, <100 %”
O LED “Level 100 %”
P Potentiometer for upper measuring point (20 mA)
Q Terminal lugs for voltage measurement (between 0-7 V DC, level proportional)
R Thermal fuse T
max
102 °C
S Terminal strip
T PE connection
U Plug
1 NRGT 26-1: Max. length of installation at 238 °C
2 NRGT 26-1: Measuring range
3 NRGT 26-1S: Max. length of installation at 238 °C
4 NRGT 26-1S: Measuring range
Installation
NRGT 261
1. Check seating surfaces of threads or flange provided on vessel or boiler standpipe.
2. Place joint ring
C onto seating surface B of the electrode Fig. 7.
Fig. 6
Use only joint ring (of stainless steel 1.4301) D 27 x 32 to DIN 7603 supplied with electrode.
3. Apply a light smear of silicone grease (e. g. DOW Corning 111 Compound) to electrode thread
A.
4. Screw level electrode into threads or flange provided on vessel or boiler standpipe and tighten with
a 41 mm open-end spanner. The torque required is
160 Nm when cold.
NRGT 261S
1. Check seating surfaces and place flat gasket on connection standpipe.
2. Place flange
Tighten bolts in diagonally opposite pairs.
E together with level electrode onto connection standpipe and secure with bolts.
Fig. 5
Attention
■
The seating surfaces of the threads or flange provided on the vessel or boiler standpipe
must be accurately machined.
■
Do not bend electrode rod when mounting.
■
Do not lag electrode body.
■
Do not insulate electrode thread with hemp or PTFE tape.
Fig. 6
Note
■
For the approval of the boiler standpipe with connecting flange the relevant local or
national regulations must be considered.
■
See four examples of installation on page 14.
Tools
■
Open-end spanner 17 mm A. F.
■
Open-end spanner 41 mm A. F.
13
14
Installation – continued –
Examples of installation
¾" BSP
1
DN 50
4
2
3
20
∅ 20
≤ 1500
5
6
0
≥ 10
≤ 90°
∅ 20
Fig. 9 Fig. 10
¾" BSP ¾" BSP
!
1
2
DN 20
4
≤ 90°
∅ 20
¾" BSP
DN 50
¾" BSP
1
2
3
20
20
5
∅
6
0
≥ 10
!
1
2
4
9
3
5
∅ 20
20
≤ 90°
∅ 20
Fig. 11
DN 100
24.5 24.5
4
≤ 20
7
centre distance
5
8
≤10
0
"
DN 20
Fig. 12
0
DN 20
Installation – continued –
Key
Flange PN 40, DN 50 (2"), DIN 2527
1
Flange PN 40, DN 100 (4"), DIN 2527
For the approval of the boiler standpipe with connecting flange the relevant
2
regulations must be considered.
Vent hole
3
High water (HW)
4
Electrode rod d = 15 mm
5
Protection tube DN 80
6
Protection tube DN 100
7
Electrode distance ≥ 14 mm (LW)
8
Electrode distance ≥ 40 mm (LW)
9
Low water (LW)
0
Reducer K-88.9 x 3.2 - 42.4 x 2.6 W to DIN 2616, part 2
!
Reducer K-114.3 x 3.6 -48.3 x 2.9 W to DIN 2616, part 2
"
15
16
Wiring
NRGT 261, NRGT 261S
Use multi-core flexible control cable with min. conductor size 1.5 mm2 for wiring.
1.
Undo screws H, remove housing cover J. Fig. 7
2. Unscrew union nuts of cable entry
The electrode terminal can be turned through +/– 180 °.
3. Loosen plug
U with 17 mm spanner but do not remove. Fig. 8
4. Turn electrode terminal into desired direction (+/– 180 °).
5. Tighten plug
6. Remove terminal strips
U slightly.
S from board.
7. Connect terminal strip according to wiring diagram, connect PE connection
8. Plug in terminal strips
9. Install cable entry
10. Replace housing cover
S.
I.
J, insert screws H and fasten.
Wiring diagram
NRGT 261
NRGT 261S
I.
T.
Fig. 13
4-20 mA
Max. load
500 Ω
Earthing screw
in enclosure
Mains
24 V DC
Attention
■
Fuse supply cables with 250 mA (slow blow).
Tools
■
Screwdriver for cross head screws, size 1
■
Screwdriver for slotted screws, size 2.5; completely insulated according to DIN VDE 0680-1
■
Open-end spanner 17 mm A. F.
Thermal fuse
Basic Setting
Factory setting NRGT 261
The compact system is delivered with the following factory set default values:
■
Measuring range 1300 mm: Switch K position 4, water ≥ 20 µS/cm
■
Measuring range 1400 mm up to 1700 mm: Switch K position 4, water ≥ 20 µS/cm
■
Measuring range 1800 mm up to 1500 mm: Switch K position 4, water ≥ 20 µS/cm
■
Measuring range 1600 mm up to 2000 mm: Switch K position 5, water ≥ 20 µS/cm
Factory setting NRGT 261S
The compact system is delivered with the following factory set default values:
■
Measuring range 1275 mm: Switch K position 4, water ≥ 20 µS/cm
■
Measuring range 1375 mm up to 1675 mm: Switch K position 4, water ≥ 20 µS/cm
■
Measuring range 1775 mm up to 1475 mm: Switch K position 4, water ≥ 20 µS/cm
■
Measuring range 1575 mm up to 1975 mm: Switch K position 5, water ≥ 20 µS/cm
Establish active measuring range (control range)
A control range may be established within the measuring range of the electrode. Establish the length
of the control range using switch K, see Fig. 8
X Control range [mm] (active measuring range)
2 Max. measuring range at 25°C
5 Water, conductivity ≥ 20 µS/cm
6 Water, conductivity ≥ 25 µS/cm
7 Fuel oil EL, dielectric constant εr 2.3
37
K
Fig. 14
2
26
X
Lower measuring
point
X 5 6 7
4
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
3
4
3
4
3
4
4
4
4
4
4
4
4
4
4
4
5
4
5
4
5
4
5
4
5
4
5
4
5
5
5
5
6
5
6
5
6
5
6
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
4
Attention
■ If X is clearly smaller than 2 set switch K one step back.
17
18
Commissioning
Danger
The terminal strip and the electronic components of the NRGT 26-1/NRGT 26-1S are live
during operation.
This presents the danger of electric shock.
Use only completely insulated screwdriver according to VDE 0680 for adjusting the
measuring points.
Check wiring
1. Check whether the system NRGT 26 -1, NRGT 26-1S has been wired according to wiring diagram
Fig. 13.
2. Check whether mains supply corresponds to the wiring carried out on the equipment.
Apply mains voltage
1. Turn on power to the equipment. The LED
(if the electrode is exposed).
Adjust lower measuring range
1. Fill boiler or vessel with liquid until the lower measuring point is reached.
2. Wait until boiler or vessel has reached its service pressure.
3. Turn potentiometer
4. Turn potentiometer
You have now established the lower measuring point.
Adjust upper measuring range
1. Fill boiler or vessel with liquid until the upper measuring point is reached and wait for
30 secs. (internal attenuation).
2. Turn potentiometer
3. Turn potentiometer
4. Turn potentiometer
You have now established the upper measuring point.
5. Fix housing cover
J.
Note
■ When adjusting the measuring points of the electrode in a cold liquid, the measuring
points will shift with rising temperature as a result of the longitudinal expansion of the
electrode rod. Be sure to correct the settings accordingly.
■ If a higher accuracy (for 0 % = 4 mA and 100 % = 20 mA) than ± 0.5 mA is required,
measure the level-proportional current at terminals 1
more accurate settings.
Fig. 6
L to the left until the red LED M lights up.
L to the right until only the green LED N lights up.
P to the right until only the red LED O lights up.
P to the left until the green LED N lights up.
P to the right until the green LED N goes out.
M of the electrode NRGT 26-1 will light up
ü and 2 ä in order to establish
Operation
NRGT 261, NRGT 261S
Operation in steam and (pressurised) hot water plants in accordance with TRD 401, TRD 602, TRD 604,
EN 12952, EN 12953 or other national regulations or according to the guidelines of classification
societies.
Note
■
Should malfunctions occur during the commissioning procedure refer to chapter
“Operational Malfunctions” on page 20 in order to analyse and correct them.
19
20
Operational Malfunctions
Fault finding list for troubleshooting
Equipment fails to work
Fault: Mains voltage has not been applied.
Remedy: Apply mains voltage. Wire equipment according to the wiring diagram.
Fault: The thermal fuse has been activated.
Remedy: In case of a defective thermal fuse the mains voltage has not been applied to terminal R.
Replace defective thermal fuse (ref. no. 051629).
The ambient temperature must not exceed 70 °C.
Fault: The electrode housing does not have earth connection to the vessel.
Remedy: Clean seating surfaces and insert metal joint ring (of stainless steel 1.4301) D 27x 32 to
DIN 7603.
Do
Fault: Electronic board is defective.
Remedy: Replace board (ref. no. 391360).
Equipment does not work accurately
Fault: Electrode has been installed without protection tube.
The protection tube serves as reference electrode.
Remedy: Install protection tube.
Fault: The vent hole in the protection tube does not exist, is obstructed or flooded.
Remedy: Check protection tube and, if necessary, provide vent hole.
Fault: The isolating valves of the external measuring pot (optional) are closed.
Remedy: Open isolating valves.
Fault: The desired zero point does not lie within the measuring range of the electrode.
The electrode is too short.
Remedy: Replace the compact system. Choose adequate electrode length.
Fault: The adjustment of the measuring range is wrong.
Remedy: Adjust switch K correctly. See “Basic Adjustments“.
Fault: Dirt deposits have accumulated on the electrode rod.
Remedy: Remove compact system and clean electrode rod with a wet cloth.
Fault: The gasket of the electrode rod is damaged.
Measuring current at terminal
Remedy: Replace compact system.
not insulate compact system with hemp or PTFE tape!
1 and 2 ≥ 20 mA. Fig. 13
If faults occur that are not listed above, please contact our subsidiary or agency in your country.
Decommissioning
Danger
Risk of severe burns and scalds to the whole body!
Before removing the level electrode make sure that the vessel or measuring pot are
depressurised (0 bar) and cooled down to room temperature (20 °C).
Disposal
Remove the level electrode and separate the waste materials in accordance with the material
specification. Electronic components (boards) must be disposed of separately.
For the disposal of the level electrode observe the pertinent legal regulations concerning waste
disposal.
21
22
Annex
Declaration of conformity
We hereby declare that the equipment NRGT 261 and NRGT 261S conforms to the following
European guidelines:
■
Low Voltage Directive (LVD) 73/23/EEC version 93/68/EEC
■
Directive of Electromagnetic Compatibility (EMC) 89/336/EEC version 93/68/EEC
■
LVD standard EN 50178
■
EMC standard EN 50 081-2, EN 50082-2
This declaration is no longer valid if modifications are made to the equipment without consultation
with us.
Bremen, 19th March 2004
GESTRA AG
Dipl.-Ing. Uwe Bledschun
Head of the Design Dept.
Dipl.-Ing. Lars Bohl
Quality Assurance Representative
For your notes
23
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GESTRA
España
GESTRA ESPAÑOLA S.A.
Luis Cabrera, 86-88
E-28002 Madrid
Tel. 00 34 91 / 5 15 20 32
Fax 00 34 91 / 4 13 67 47; 5 15 20 36
E-mail: aromero@flowserve.com
Great Britain
Flowserve Flow Control (UK) Ltd.
Burrel Road, Haywards Heath
West Sussex RH 16 1TL
Tel. 00 44 14 44 / 31 44 00
Fax 00 44 14 44 / 31 45 57
E-mail: gestraukinfo@flowserve.com
Italia
Flowserve S.p.A.
Flow Control Division
Via Prealpi, 30
l-20032 Cormano (MI)
Tel. 00 39 02 / 66 32 51
Fax 00 39 02 / 66 32 55 60
E-mail: infoitaly@flowserve.com
Polska
GESTRA POLONIA Spolka z.o.o.
Ul. Schuberta 104
PL - 80-172 Gdansk
Tel. 00 48 58 / 3 06 10 -02 od 10
Fax 00 48 58 / 3 06 33 00
E-mail: gestra@gestra.pl
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Porto 4100-082
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USA
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Louisville, KY 40299
Tel.: 00 15 02 / 4 95 01 54, 4 95 17 88
Fax: 00 15 02 / 4 95 16 08
E-mail: dgoodwin@flowserve.com
GESTRA AG
P. O. Box 10 54 60, D-28054 Bremen
Münchener Str. 77, D-28215 Bremen
Telephone +49 (0) 421 35 03 - 0
Fax +49 (0) 421 35 03 - 393
E-Mail gestra.ag@flowserve.com
Internet www.gestra.de
810213-04/1205cm · © 1997 GESTRA AG · Bremen · Printed in Germany
24
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