CONTENTS datahidrolik.

com

HYDRAULIC STEERING CYLINDERS

HYDRAULIC HELM PUMPS
NON RETURN VALVES & DISTRIBUTION BLOCKS
TILLERS
HYDRAULIC POWER UNITS
DOUBLE CYLINDERED STEERING SYSTEMS
RESERVE OIL TANKS & HEADER TANK
STEERING GEAR CONTROL SYSTEMS
RUDDER ANGLE INDICATORS
FEEDBACK UNITS
STEERING GEAR INQUIRY FORM
NOTES

1
 DDM 55000-35

DATA designs and manufactures several lines of marine

hydraulic steering systems in complete ranges starting
from 50 daN.m up to 55000 daN.m, as well as steering
controls, hydraulic power units, motor starters and rudder
angle indicators ensuring overall system responsibility for
all types of commercial vessels, navy ships, pleasure
boats and mega yachts.

on everything that’s on sea...

With many years’ experience of manufacturing steering gears, we are well aware of
the problems concerning operation in marine atmospheric conditions.
DATA steering systems are designed and manufatured to meet the highest standarts
and serve in long term with minimum maintenance.

Beside the standart range, DATA is flexible to modify desings according to customer
needs or produce an unique solution.

Steering systems are compatible with the rules of all well known class societies and
can be certified and delivered with class certificate upon customer request.

3
 HYDRAULIC STEERING

DS 70S / DS 660S DS 50
DATA hydraulic steering cylinders are available in 6 sizes suitable to fit on various sizes
of vessels. Cylinders are balanced type and specially designed for marine steering use.
CE certificates are available meeting ISO EN10592:2000 standarts (excluding DS660).
CYLINDERS

HYDRAULIC STEERING CYLINDER RECOMMENDED VESSEL LENGTH

metres 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34
feet 20 26 33 39 46 52 59 66 72 79 85 92 98 105 112
DS 50
DS 70S
DS 150S
DS 290S
DS 460S
DS 660S

Note : Above table is intended to give a quick idea for selection. Suitable steering gear may change due
to the displacement, type, speed, rudder blade shape and dimensions of the vessel. Always consult to
DATA or an autorized DATA dealer when selecting the steering gear. Refer to relevant classification
society rules.

HYDRAULIC STEERING CYLINDER TECHNICAL SPECIFICATIONS

Cylinder type DS 50 DS 70S / 70SL DS 150S / 150SL DS 290S / 290SL DS 460S / 460SL DS 660S / 660SL
Nominal Torque daN.m 50 70 150 290 460 660
Recommended boat length m 6-8 7 - 11 9 - 16 13 - 21 19 - 27 25 - 34
Recommended pump type DP 30 / 42 DP 30 / 42 DP 63 / 75 DP 75 / 88 DP 88 / 120 DP 120
Revs from St.Bd. To Port 4 / 2.9 5.4 / 3.8 5.2 / 4.4 9.1 / 7.8 13.2 / 9.6 15
Cylinder stroke mm 160 172 218 275 275 344
Pressure for nominal torque bar 58 60 60 60 55 52
Tiller length 140 150 190 240 240 300
Cylinder oil volume cm³ 121 162 329 688 1162 1757
Total rudder angle 2x37° 2x37° 2x37° 2x37° 2x37° 2x37°
Cylinder connection ports BSP 1/4" 1/4" 3/8" 1/2" 1/2" 1/2"
Min. tube dimensions (inside) mm ø10 ø10 ø15 ø15 ø15 ø19
Weight kg 3.8 6.2 12.5 21.5 33 53
 Reduction of the number of steering wheel revolutions:
It is the hydraulic cylinder which determines the torque of a hydraulic steering system. When a reduced number of of steering
wheel revolutions from hardover to hardover is required, a steering pump with larger capacity should be selected. On the
other hand, pump with larger capacity will cause relatively greater load on the steering wheel. An optimum selection should
be made by checking “technical specifications table” It should be remembered that when a larger diameter steering wheel is
selected, the force to be applied to the steering wheel becomes relatively lower

If steering wheel revolutions can not be reduced to the desired numbers with manual helm pumps, DATA offers various types
of hydraulic power units for a comfortable operation. Please check next pages for HPUs and other steering system parts
suitable for your steering system.
The choise of correct cylinder is determined by rudder torque (in daN.m) which is effected by rudder blade shape,
dimensions and the vessel speed. Please feel free to consult to DATA after filling the inquiry form at the end of this catalogue.

HYDRAULIC STEERING CYLINDER DIMENSIONS (mm)

Cylinder type A B C D E F G H I K L M N O
DS 50 140 40 160 12 390 136 115 8.5 64 84 104 max.35 42 56
DS 70S 150 45 172 16 485 213 123 10 71 92 116 max.35 50 52
DS 150S 190 60 218 20 630 285 156 12 110 125 150 max.45 85 60
DS 290S 240 75 275 25 743.5 328 200 16 130 155 190 max.60 94 85
DS 460S 240 90 275 30 788.5 338 201 16 160 195 230 max.80 125 105
DS 660S 300 105 344 35 944.5 415 245.5 20 190 230 270 max.90 145 120

FEATURES
Designed for heavy duty use.
Stainless steel and hard chrome plated piston rod is precision ground .
Maintenance free spherical rod ends.
Self aligning spherical and maintenance free cylinder support.
Micro-honed, heavy duty and seamless cylinder tube.
Air bleeding nipples.
High pressure seals.
Equipped with wiper seals at both ends.
Ports on both sides of cylinder for convenience of hydraulic installation.
Painted with epoxy enamel white (RAL 9016).

OPTIONS
Hydraulic cylinders are manufactured with 2 options.
Cylinders can be either with steel/bronze parts (designated with S) or
stainless steel/bronze parts (designated with SL).
Certification from classification societies.

5
 DP 30 - 42
HYDRAULIC HELM

DP 63-75-88 DP120 DP160 PUMP & DPS100

PUMPS

WHEEL INSTALLED ON
STEERING COLUMN

In manually operated steering systems hydraulic power is created through rotation

of the steering wheel which is connected to the shaft of a helm pump. Help pumps
can be either used on small boats with a cylinder only or can be used as an auxilary or
emergency unit to a power operated system on larger vessels.

DATA hydraulic helm pumps are available in 8 displacements suitable to fit with
various sizes of hydraulic cylinders. Helm pumps are axial piston type and
specially designed for marine steering use. CE certificates are available meeting ISO
EN10592:2000 standarts (excluding DP120, DP160 and DP240).

HYDRAULIC HELM PUMP TECHNICAL SPECIFICATIONS

Helm pump type DP 30 / DP 30K DP 42 / DP 42K DP 63 / DP 63K DP 75 / DP 75K DP 88 / DP 88K DP 120 / DP 120K DP 160 / DP 160K DP 240 / DP 240K
Pump displacement cm³/r 30 42 63 75 88 120 160 240
Recommended cylinder type DS 50 / DS 70S DS 50 / DS 70S DS 150S DS 150S / DS 290S DS 290S / DS 460S DS 460S / DS 660S DS 660S
Revs from St.Bd. To Port 4 / 5.4 2.9 / 3.8 5.2 4.4 / 9.1 7.8 / 13.2 9.6 / 14.6 11
Design pressure bar 60 60 60 60 60 60 60 60
Hyd. connection ports BSP 1/4" 1/4" 3/8" / 1/2" 3/8" / 1/2" 3/8" / 1/2" 1/2" 1/2" 1/2"
Min. tube dimensions (inside) mm ø10 ø10 ø15 ø15 ø15 ø19 ø19 ø19
Weight kg 6.5 6.5 12.2 10.5 10.5 17 35 35

datahidrolik.com
 HYDRAULIC HELM PUMP DIMENSIONS (mm)

Pump type A B C D E F G H I K L M N O
DP 30/30K/42/42K 145 146 7 197 69 75 53 13 31 9 130 19,6/2,38 2/5 160
DP 63/63K/75/75K/88/88K 200 182 9 340 160 89 91 5 56 30 152 25,3 28,2/6,6 -
DP 120/120K 210 190 9 368 237 40 91 5 56 30 195 25,3 28,2/6,6 215
DP 160/240 260 240 9 398,5 216 55 127,5 32,5 70 25 287 30 33/8 320

FEATURES
Designed for heavy duty use.
Integrated valve system and oil reservoir for self air bleeding and balancing.
Suitable to use with balanced and unbalanced cylinders (except DP30/42).
Stainless steel shaft (DP30/42 bronze shaft).
Marine grade cast aluminium body (die cast for DP30/42/63/75/88).
DP30/42/63/75/88 are painted with semi gloss epoxy enamel black (RAL 9005).
DP120/160/240 are painted with high gloss epoxy enamel white (RAL 9016).

OPTIONS
Integrated non return valve (designated with K, not available for DP160 and DP240).

7
NON RETURN VALVES &
DISTRIBUTION BLOCKS
DKV-4 is for one helm pump.
Material is marine grade
aluminium

DKV-4B is for one helm pump. DKV-6 is for the installation of DKV-4E
There is integrated by-pass valve to two helm pumps. While one 24VDC electric activated valves are integrated
allow use of manual tiller. Material pump is used the other is kept on DKV-4. It is used in systems with a HPU.
is marine grade aluminium. fixed. Material is marine grade Electric activated valves are normally open.
aluminium. They are closed automatically when HPU
valves are activated to prevent conflict
between power operated system and manual
helm pump which may cause oil loss in helm
pump reservoir. DKV-5E is the version without
DKV-4 and it is equipped with only electric
activated valves. Material is marine grade
aluminium.

Non return valve is a check valve system which keeps the hydraulic cylinder fixed against
external forces. It is normally closed from cylinder side. When oil is sent from one port of
helm pump, cylider return port is opened automatically. It is specially designed for manual
steering systems to allow high oil flow with minimum pressure loss. It is an essential part
of hydraulic steering systems and it can be either integrated on helm pumps or can be
used in line. If the helm pump(s) are with integrated non return valves, it is not required to
use additional non return valve. There are various models to meet different requirements.
All non-return valves have BSP ½” ports.

DKV-4G allows higher oil flow and

recommended to use with DP160
and DP 240.
Material is steel.
Distribution blocks are equipped
with cross relief valves to prevent
steering system from external
forces which may create high
pressures in the system. They are
also equipped with a by-pass valve
to allow the use of manual tiller.
By-pass function is also usefull for
air bleed during the start up of
the system. Distribution blocks are DRB-4, 2 in-2 out, DRB-6, 2 in-4 out, DRB-8, 4 in-4 out,
Ports BSP 3/8” or 1/2” Ports BSP 3/8, 1/2” or 3/4 Ports BSP 3/8”, 1/2” or 3/4”
made of marine grade aluminium
and there are models with
different number of ports.

TILLERS
Tillers

Tillers are available in different sizes suitable to combine with DS series hydralic
steering cylinders. Tillers are produced of high strength cast steel material and
painted with epoxy enamel white (RAL 9016).

OPTIONS
Double armed tiller for parallel tie bar connection.
Custom tillers according to customer requirements.

9
 Steering system HPU with 4 variable
POWER UNITS

displacement pump units mounted

on a skid. System is delivered
HYDRAULIC

prewired and almost ready to start

running.

Hydraulic power units are specially designed to support steering systems. According to
classification societies’ rules, steering gear HPUs must be independent and should not be
common with other systems on board. Steering system HPUs are equipped will all neces-
sary sensors required by rules. Hydraulic systems are designed using the same demanding
priorities as all other DATA parts, focusing on;

:: Reliability
:: Safety
:: Performance
:: Easy & safe installation
:: Easy maintenance
:: Long operating life

datahidrolik.com
 Steering system HPU with
double AC motor and a PTO
driven pump unit
Single AC Motor driven HPU for
steering system

Perhaps, the most important feature of any complete hydraulic system is

for it to be delivered as ready as possible for installation. DATA hydraulic
systems require only the external hydraulic and electric connections
(which can only be done on board), saving time and trouble for the
installers. Our hydraulic systems are delivered with all necessary drawings
and installation manuals to ensure an easy and correct installation and
lifetime of reliability.

FEATURES
First quality hydraulic equipments from well known brands.
Large oil tanks for easy heat transfer and self cooling.
Suction filter and tank return filter with sevice gauge.
Oil level switch for low oil alarm.
Oil level and temperature gauge.
Oil fill caps with filter and breathing.
Pressure swtiches for hydraulic lock alarm.

OPTIONS
DC or AC electric motor driven pumps .
Main engine PTO driven pumps.
Main engine belt driven pumps.
Electric motor and PTO driven pump combined systems.
Double pump unit.
Auto-fill system to keep manual helm pump reservoirs full.
HPU with fixed displacement or variable displacement pump.
Cooling with sea water exchanger or air fan exchangers.
Proportional valve control.
Pressure filter.
Anti-vibration mounts.
Special HPUs for different customer demands.

11
DOUBLE CYLINDERED
STEERING SYSTEMS

DDM 12000-35

DATA produces double cylindered hydraulic steering systems for pleasure yachts, mega
yachts, commercial ships, offshore vessels and navy ships. Double cylindered systems start
from 1100 daN.m up to 55000 daN.m (550 kN.m). They are manufactured to provide
long term consistency, low maintenance and designed compatible with all well known
classification societies’ rules

DDM 2000

datahidrolik.com
 DOUBLE CYLINDERED STEERING SYSTEMS SPECIFICATIONS

Single tiller Double tiller Nominal torque @ Maximum torque Nominal working Rudder HPU Tank capacity El. motor power Total cylinder Hydraulic cylinders
35° daN.m @35° daN.m pressure bar angle lt. (50 hz-S1) kW Displacement cm³ (rod-piston-strok) mm
DDM 1100 DDM 2x550 1100 1375 103 2x35° 27 / 2x27 1.5 / 2x1.5 1495 ø32-ø63 275
DDM 1600 DDM 2x800 1600 2000 90 2x35° 40 / 2x40 2.2 / 2x2.2 2503 ø35-ø80 275
DDM 2000 DDM 2x1000 2000 2500 99 2x35° 40 / 2x40 2 / 2x2.2 2825 ø40-ø80 321
DDM 3000 DDM 2x1500 3000 3750 95 2x35° 63 / 2x70 3 / 2x3 4415 ø50-ø100 321
DDM 4000 DDM 2x2000 4000 5000 95 2x35° 90 / 2x90 4 / 2x4 5909 ø55-ø115 321
DDM 6000 DDM 2x3000 6000 7500 99 2x35° 2x110 2x5.5 8522 ø65-ø125 402
DDM 8000 DDM 2x4000 8000 10000 110 2x35° 2x120 2x5.5 10230 ø65-ø125 482
DDM 10000 DDM 2x5000 10000 12500 120 2x35° 2x130 2x7.5 11690 ø65-ø125 551
DDM 12000 DDM 2x6000 12000 15000 123 2x35° 2x165 2x11 13610 ø75-ø140 516
DDM 16000 DDM 2x8000 16000 20000 122 2x35° 2x200 2x11 18320 ø80-ø140 711
DDM 21000 DDM 2x10500 21000 26250 122 2x35° 2x230 2x15 24080 ø90-ø160 711
DDM 27000 DDM 2x13500 27000 33750 124 2x35° 2x300 2x18.5 30610 ø100-ø180 711
DDM 33000 DDM 2x16500 33000 41250 133 2x35° 2x330 2x22 34660 ø110-ø180 837
DDM 44000 DDM 2x22000 44000 55000 130 2x35° 2x300 2x30 47280 ø120-ø200 918
DDM 55000 DDM 2x27500 55000 68750 122 2x35° 2x300 2x37 62900 ø125-ø220 987

DDS 8000x2 Electronic synchronised steering

gears under test at factory

DDS 2x4000 custom design steering gear on a ferryboat

DDM 2x1000-45

Rudder Bearing

13
 DOUBLE CYLINDERED STEERING GEARS DIMENSIONS (mm)

Steering Gear Type A B C D E

DDM 1100 35° 990 560 127 0 415
DDM 1600 35° 1060 560 147 0 415
DDM 2000 35°/45° 1127 / 1185 610/700 209 21 415
DDM 3000 35°/45° 1195 / 1381 700 259 21 450
DDM 4000 35°/45° 1420 / 1600 750 265 160 460
DDM 6000 35°/45° 1562 / 1696 1100 295 179 1177
DDM 8000 35°/45° 1730 / 1891 1200 355 186.5 1177
DDM 10000 35°/45° 1840 / 2030 1300 375 216.5 1215
DDM 12000 35°/45° 2030 / 2204 1300 385 205.5 1435
DDM 16000 35°/45° 2415 / 2655 1600 475 223.5 1440
DDM 21000 35°/45° 2415 / 2655 1700 475 250.5 1484
DDM 27000 35°/45° 2515 / 2760 1750 475 250.5 1567
DDM 33000 35°/45° 2826 / 3109 1900 480 265.5 1622
DDM 44000 35°/45° 3182 / 3400 1930 550 315.5 1685
DDM 55000 35°/45° 3428 / 3759 2088 605 315.5 1912

FEATURES
Reliability.
Easy maintenance.
Easy installation.
Designed at medium pressures for heavy duty use.
100% torque with 2 cylinder and 1 pump unit. 50% torque with
1 cylinder 1 pump unit.
Bronze rudder axial bearing.
Composite rudder radial bearing.
Self aligning spherical bearings at both ends of cylinder.
Hard chrome plated piston rod is precision ground .
Oversize piston and piston rod bearings.
Micro-honed, heavy duty and seamless cylinder tube.
Heavy duty & high pressure seals.
Piston rod wiper seals.
Tiller - tiller pin connection with clamping sets for easy assembly and disassembly.
HPU installed on steering gear for models DDM 6000 and above.
First quality hydraulic equipments from well known brands.
Large oil tanks for easy heat transfer and self cooling.
Sensors for all necessary alarms required by class rules.

OPTIONS
45° or 65° (for some models only) rudder angle.
Split type bolted tiller.
Different tiller and tiller bore options.
Rudder stock-tiller connection with key or keyless hydraulic fit or
with clamping set.
Seperate cylinder configuration with tie bar.
Custom designs according to customer demands.
HPU with fixed displacement or variable displacement pump.
Proportional valve.
Cooling with sea water or air type heat exchanger.
Starter with soft starter or frequency converter.
Special HPUs for different customer demands.
Automatic bearing grease lubrication pump.
datahidrolik.com Automatic isolation system for tankers 10000 Gross tonnage and above.
 OIL TANKS
RESERVE
DRT130 Reserve oil tank

In addition to the power unit reservoir, a fixed hydraulic oil storage tank
independent of the reservoir is to be provided according to class rules.
The storage tank is to have sufficient capacity to recharge at least one power
actuating system, including the power unit reservoir. The tank is to be
permanently connected by piping in such a manner that the system can be
readily recharged from a position within the steering gear compartment.
DATA offers variaous sizes of reserve oil tanks suitable to be used with its
steering systems. Reserve oil tank must be installed higher than the HPU tanks
to allow oil transfer with gravity. Otherwise, a pump should be installed on the
line.

HEADER
TANK
DGT-2

The purpose of the header tank is to allow for the steering gear oil to expand
and contract due to the temperature variations. Also it is usefull to keep the helm
pumps reservoirs full agaist leakages to tank if an auto-fill system is not available.
Header tank can be used with manual filled system as well as on an auto-filled
system. If used with an auto-fill system, breather should be sealed and it should
be vented to the HPU tank. Header tank must be installed above the highest helm
pump onboard. Header tank is made of stainless steel and have a capacity of 2 lt.
Sight glasses are available in standart.

15
 CONTROL SYSTEMS
Data offers full package of steering gear control system starting from the feedback unit up
to bridge controls meeting all classification societies’ rules. Systems are designed modular

STEERING GEAR
and can be configured according to differerent customer and classification demands. With
the help of modular and flexible design, systems are also easily adapted to integrated
bridge systems.
Steering gear control systems are compatible with all auto-pilots, VDRs and DP Systems.
Marine approved electric and electronic parts are selected meticulously to be used in the
systems for highest reliability.

STARTER CABINETS
There are various types of steering gear starter cabinets
suitable for AC and DC motors.

FEATURES
BRIDGE CONTROL CABINETS Power Supply : Vessels main supply voltage and 24VDC
for alarm system.
Dimensions : H500 x W400 x D210 mm (DC and AC DOL),
Degree of protection : IP65.
Bridge control cabinet is the center of the system where all steering
components and other parties involved in steering control such as Color : RAL9001 white .
auto-pilot and DP are connected. Follow-up control, synchronisation Material : Powder coated steel.
of two rudders and station selection are managed in bridge control Operating Temperature : -20°C...+70°C.
cabinet. There are several versions depending on the configuration of Steering gear alarm management complying class rules.
the steering system.
Network with can-bus to SCP-CAN and SAP-CAN
control/Alarm panel.
Local-remote control selection.
FEATURES Digital out put to alarm monitoring system and VDR.
DOL starter up to 5.5 kW, delta-star starter from 7.5kW and up.
Power Supply : Vessels main supply and supply from starter cabinet.
Dimensions : Varies according to system configuration .
Degree of protection : IP65.
OPTIONS
Color : RAL9001 white . Different color or material.
Material : Powder coated steel. Motor start with frequency converter or soft starter.
Operating Temperature : -20° C … +70° C. Ammeter.
Hourmeter.
SAP-CAN installation on the cover.
NMEA2000, MODBUS RTU serial communication to
datahidrolik.com vessel’s AMS and VDR.
 STEERING GEAR PUMP
CONTROL & ALARM PANELS

Steering gear pump control & alarm panels are used to start/stop pump
motors and alarm monitoring. SAP-CAN is the version for engine
control room. SAP-CAN does not have pump start/stop function.
SCP-V3 Multiple panels can be installed thanks to the can-bus system.

FEATURES
Power Supply : 24 V DC.
Dimension : H136 x W96 x D70 mm.
Degree of protection : IP65 ( front ).
Operating Temperature : -20° C … +70° C.
Network: Can-Bus (Control Area Network, with 2x2x0,50 twisted Pair, Double Cable for
Redundancy).
Connection : Phoenix Contact TFMC 1,5/ 5-STF-3,5 Female connector.
Motor start/stop running (SAP-CAN does not have start/stop function).
Monitoring of 9 visual & acoustical alarm .
Indicator backlight dim. control.
Buzzer silence.
SAP-V3 Lamp test.
Network fail alarm indication.
Material : black anodized aluminium.
Touch pad control with real tact switch.
Multiple panels can be installed thanks to the can-bus system.
Marine type approved.

OPTIONS
Different labeling for 24VDC, 220VAC 1ph., 380VAC 3phs.
Digital input/outputs instead of can-bus

SAP-S Steering gear pump alarm panel

is used to monitor limited alarms.. This
panel does not have pump start/stop
function. It is designed to combine with
FEATURES DEH-NFU6203 NFU helm unit.

Power Supply : 24 V DC.

Dimension : H96 x W72 x D70 mm.
Degree of protection : IP65 ( front ).
Operating Temperature : -20° C + 70° C.
Connection : Wago 713-1106/037-000 Female connector.
Monitoring of 5 Visual & acoustical alarm.
Material : black anodized aluminium .
Touch pad control with real tact switch. SAP-S Steering gear pump
Buzzer silence. alarm panel
Lamp test.

17
STEERING GEAR BRIDGE
CONTROL & ALARM PANELS

SCAP-C
Conventional
Steering Gear
Bridge Control
SCAP Steering Gear Bridge Control & & Alarm Panel
Alarm Panel with selector
switch

This panel consists of steering control system failure alarms, auto-pilot

activation and auto-pilot over ride alarm and reset functions. This panel
is offered for vessels above 500 GRT.

FEATURES For customers who prefer to have a conventional panel, Data

also offers SCAP-C Conventional Steering Gear Control & Alarm
Panel with selector switch. Control stations and auto-pilot can
Power Supply : 24 V DC.
be selected by means of the selector switch and selections are
Dimension : H136 x W96 x D70 mm. indicated with lamps. It also consists of steering control system
Degree of protection : IP65 ( front ). failure alarms, auto-pilot activation and auto-pilot over ride alarm
Operating Temperature : -20° C + 70° C. and reset functions,. This panel is offered for vessels above 500
Connection : Wago 713-1108/037-000 Female connector. GRT.
Monitoring of up to 9 Visual & acoustical alarm.
Material : black anodized aluminium . FEATURES
Touch pad control with real tact switch.
Indicator backlight dim. control. Power Supply : 24 V DC.
Buzzer silence. Dimension : H136 x W200 x D135 mm.
Lamp test. Degree of protection : IP54 ( front ).
Operating Temperature : -20° C + 70° C.

OPTIONS Connection : Wago 260-301 Terminal Block, DIN Rail.

Conventional lights and switches.
Different labeling is possible. Flexibility for different system configurations.
Material : black anodized aluminium.
Station selection by rotating switch.
Indicator lights dim. control.
Buzzer silence.
Lamp test.

datahidrolik.com OPTIONS
For 45° steering gears, 35° and 45° rudder limit selection.
 NFU JOYSTICK CONTROL PANEL

What is Non follow-up?

Non follow up is a type of steering control. Non follow up system directly controls
direction control valves of the HPU. Therefore it is the simplest and safest way of
control. When joystick is pushed to one side, rudder starts turning to this direction
and turns as long as joystick is pushed or tiller reaches to limit siwitch. Rudder stays
at the position where joystick is released. To take the rudder at center, joystick must
be pushed in the opposite direction.

FEATURES
Power Supply : 24 V DC.
Dimension : H96 x W72 x D70 mm.
Degree of protection : IP65 ( front ).
NFU-B Control Panel Operating Temperature : -20° C + 70° C.
Material : black anodized aluminium.
Connection : Wago 713-1106/037-000 Female connector.
Spring centered, On-Off Joystick.
Seperate contacts for each pump unit.

OPTIONS
NFU-B with activation buttons, NFU-S without activation buttons.

SYNCHRON CONTROL NFU PANEL

Synchron or independent control of electronic synchronised steering gears are

selected through SSCP synchron control NFU panel. When synchron control is
selected port joystick is master.

FEATURES
Power Supply : 24 V DC.
Dimension : H96 x W144 x D70 mm.
Degree of protection : IP65 ( front ).
Operating Temperature : -20 °C … +70° C.
Material : black anodized aluminium.
SSCP Synchron Control Spring centered two On-Off NFU joystick.
NFU Panel Seperate contacts for each pump unit.
Synchron control with 1 joystick.
Independent control with 2 joysticks.
Station active button.
Synchro active/deactive button.
Synchro failure.
Buzzer silence.
Lamp test.

19
NFU HELM
DEH-NFU6203 NFU Helm

DEH-NFU6203 is an electronic steering input unit working

DEH-FU165 FU Helm
without a feedback requirement from rudder. Therefore
it is named as NFU Helm. DEH-NFU6203 is a mechatronic
solution with integrated electronic control unit, embedded
software and CAN bus interface, which can replace the
traditional steering column offering a robust steering input FU HELM
function to be fitted in electro-hydraulic steering systems.
The solution translates the steering wheel’s rotational
movement into safe digital information on the CAN bus,
offering a resistive steering feedback with redundant What is follow up?
control. Engineered to withstand severe operating
Follow up is a type of steering control. A rudder order is given by
conditions and tested to fulfill the severe steering input means of a FU unit and rudder is rotated to the ordered direction. A
requirements for marine. The unit provides a flexible, feedback unit sends actual rudder angle signal to the control system.
light-weight and compact solution with smart functions Control system compares the rudder order and actual rudder angle and
for drivers’ comfort such as programmable endstops and stops the rudder at ordered angle given by FU Helm
controllable resistive steering feedback. Moreover the
steering feedback can be dynamically adapted to different
driving conditions. For example, the steering wheel FEATURES
“resistance” can be controlled proportionally to the steering
wheel turning speed: this enables more accurate, Power Supply : 24 V DC.
comfortable and safe steering. Dimensions : H165 x W165 x D110 x Ø250 mm.
Degree of protection : IP54 ( front ).
Operating temperature : -20° C +70° C.
Material : black anodized aluminium.
Output : 4-20 mA (Option 1 kOhm)
Max. 4 outputs
FEATURES Activation button.
Iluminated scale.
Power Supply : 12/24 V DC. Dimmer.
Dimensions : Ø138 x D130 mm. Weight : 3.8 kg.
Degree of protection : IP67.
Operating Temperature : -40° C +85° C. OPTIONS
Material : black anodized aluminium, stainless steel shaft.
35, 45 or 65 rudder angle
Connection : CAN-BUS.
4-20 mA or 1 kOhm output
Contactless sensors.
Up to 4 output
Weight : 4 kg.
Max. rotation speed : 180 rpm.

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 MINI FU HELM

DEH-FU120 Mini FU Helm is designed to install on the console for

control of single steering gear.

FEATURES
Power Supply : 24 V DC.
Dimensions : H120 x W120 x D110 mm.
Degree of protection : IP54 ( front ).
Operating temperature : -20° C +70° C.
Material : black anodized aluminium.
Output : 4-20 mA (Option 1 kOhm)
Max. 2 outputs
Activation button.
DEH-FU120
Iluminated scale.
Dimmer.

OPTIONS
35, 45 or 65 rudder angle
4-20 mA or 1 kOhm output
Up to 2 output

DEH-FU120SY Mini FU Helm is designed to install on the console

for control of double (electronic synchronised) steering gear.
FEATURES
Power Supply : 24 V DC.
Dimensions : H120 x W252 x D110 mm.
Degree of protection : IP54 ( front ).
Operating temperature : -20° C..+70° C.
Material : black anodized aluminium.
Output : 4-20 mA (Option 1 kOhm)
Max. 2 outputs from each FU
Synchron control with 1 knob.
Independent control with 2 knobs.
Station active button.
Synchro active/deactive button.
DEH-FU120SY
Synchro failure.
Buzzer silence.
Lamp test.
Iluminated scale.
Dimmer.

OPTIONS
35, 45 or 65 rudder angle
4-20 mA or 1 kOhm output
Up to 2 output from each FU control

21
 These gauges automatically detect if they are installed as MASTER or
SLAVE and make no longer necessary to have two different versions.
RUDDER ANGLE

The instrument connected directly to the sensor acquires the signal and
convert it in a CAN Bus that is transmited to the other instruments that
will work then as SLAVE. Just by pressing the two rear buttons and
INDICATORS

moving the rudder from port to starboard, the instrument calibrates

itself automatically, recording permanently the data in the micro-
processor memory. The instruments are SOLAS/MED approved.

IAB19696/DH Rudder
angle indicator
FEATURES
Power Supply : 12/24 V DC.
Dimensions : 96x96 mm.
Degree of protection : IP66 (front).
Operating temperature : -25° C … +70° C.
Input : 1-5 kOhm, 4-20 mA and CAN Bus.
Range : +/-45°.
Dimmable led backlight.
Easy adjustment.
No amplifier is required.

XL144 is a DEIF product produced for DATA. It is a console mounting

type indicator. The instruments are SOLAS/MED approved.

FEATURES
Power Supply : 24 V DC.
Dimensions : 144x144 mm.
Degree of protection : IP52 (front).
Operating temperature : -25° C … +70° C.
Input : -/+ 10V.
Range : +/-45°.
XL144 Rudder angle Dimmable led backlight.
indicator Easy adjustment.
Amplifier is required (TDG 210-DG).

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 BW144 is a DEIF product produced for DATA. The BW type is designed for
bridge wing and tiller compartment mounting and is basically an XL indica-
tor with a pivot foot, a rear part and a built-in dimmer. The flexible BW
type allows for either mounting, hanging or standing.. The instruments are
SOLAS/MED approved.

FEATURES
Power Supply : 24 V DC.
Dimensions : 144x144 mm.
Degree of protection : IP66.
BW144 Rudder angle Operating temperature : -25° C … +70° C.
indicator Input : -/+ 10V.
Range : +/-45°.
Dimmer installed on housing.
Easy adjustment.
Amplifier is required (TDG 210-DG).

TRI-2 is a DEIF product. It is a panoramic 3 face indicator for wheel house

ceiling. The instruments are SOLAS/MED approved.

FEATURES
TRI-2 Panoramic rudder Power Supply : 24 V DC.
angle indicator Dimensions : Ø370 x 115 mm.
Degree of protection : IP54.
Operating temperature : -25° C … +70° C.
Input : -/+ 10V.
Range : +/-45°.
Dimmer installed on housing.
Easy adjustment.
Readable from up to 5 meters.
Amplifier is required (TDG 210-DG).

23
 TAB40205 feedback unit is used in combination with IAB19696/
DH rudder angle indicators

FEATURES
FEEDBACK UNITS

TAB 40205 Rudder Feedbak unit Power Supply : 12/24 V DC.

Dimensions : Ø84x93 mm.
Degree of protection : IP65.
Operating temperature : -25° C … +70° C.
Potentiometer resistance : 5kOhm
Max. measure angle : +/-45°.
Material : Housing plastic, shaft stainless steel.
RUDDER

Easy installation and adjustment.

DFU100 feedback unit comes with 1 potentiometer. It is used for

rudder feedback to IAB19696/DH rudder angle indicators.
In addition to feedback function, two or four adjustable limit
switches can be installed in the unit.

FEATURES
Power Supply : 12/24 V DC.
Dimension : Ø115x122 mm.
Degree of protection : IP65.
Operating temperature : -25° C … +70° C.
DFU100 Rudder feedback unit Potentiometer resistance : 5kOhm
Max. measure angle : +/-55°
Weight : 1.3 kg.
Material : Housing aluminium, shaft stainless steel.
Easy installation and adjustment.

OPTIONS
DFU100-1P - 1 potentiometer
DFU100-1P-2LS - 1 potentiometer + 2 Limit Switch (1 pump unit)
DFU100-1P-4LS - 1 potentiometer + 4 Limit Switch (2 pump units)
DFU100-2LS - 2 Limit Switch (1 pump unit)
DFU100-4LS - 4 Limit Switch (2 pump units)

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 DFU200 feedback unit can accomodate up to 4 potentiometers. It is used
for rudder feedback to IAB19696/DH rudder angle indicators and
FU system. Two or four adjustable limit switches can be installed in the unit.

FEATURES
Power Supply : 24 V DC.
Dimension : Ø200x164 mm.
Degree of protection : IP65.
Operating temperature : -40° C … +70° C.
Potentiometer resistance : 1 kOhm
Max. measure angle : +/-45° (+/-65° is available on request)
DFU200 rudder feedback unit
Weight : 4 kg.
Material : Housing aluminium, shaft stainless steel.
Angle scale and pointer on the feedback unit.
Easy installation and adjustment.

OPTIONS
DFU200-1P - 1 potentiometer
DFU200-2P - 2 potentiometers
DFU200-3P - 3 potentiometers
DFU200-4P - 4 potentiometers
DFU200-1P-2LS - 1 potentiometer + 2 Limit Switch (1 pump unit)
DFU200-1P-4LS - 1 potentiometer + 4 Limit Switch (2 pump units)
DFU200-2P-2LS - 2 potentiometer + 2 Limit Switch (1 pump unit)
DFU200-2P-4LS - 2 potentiometer + 4 Limit Switch (2 pump units)

RTA 602 is a DEIF product. This rudder feedback unit is used in combination
with DEIF rudder angle indicators

FEATURES
Power Supply : 24 V DC.
Dimension : Ø102x122.5 mm.
Degree of protection : IP67.
Operating temperature : -40° C … +80° C.
RTA 602 Rudder feedback Analog output : 4-20 mA.
unit
Max. measure angle : +/-45°.
Material : Housing aluminium, shaft stainless steel.
Easy installation and adjustment.

25
 STEERING GEAR INQUIRY FORM
CUSTOMER INFORMATION
Customer Name Date (dd/mm/yy)
Shipyard Hull/Yard No.
Vessel Name
Phone / Fax
E-mail
Address

TECHNICAL DATA

A B

Rudder dimensions (mm)

nudder stock
A=

centre of
B=

E
C=
D=
E=
C D
alternative drawing
or attach rudder blade drawing

Rudder type (Single plate-Gottingen-Flat side-Hollow-Flap-Fishtail-Nozzle)

Vessel length m. Displacement Gross tons.
Vessel type (Motor yacht: Sail: Workboat, Tug etc.)
Hull type (specify if other) Planing Displacement Sail Catamaran
Max. Speed (ahead) knots
Number of rudders Number of propellers
Location of the rudder blade (In propeller jet: 1 / Out of propeller jet: 0.9)
Degree of rudder angle 2X 35º (standart) 45º Other
Torque per rudder * kN.m (* if calculated)
Power Supply V Hz Phase
Number of control stations Specify
Hydraulic power unit Not required (Only manual control)
Engine driven pump x1 x2
AC El. motor driven V Hz x1 x2
(For 30 kN.m and below) 24 VDC El. motor driven x1 x2
Type of valve control On/Off (bang-bang) Proportional
Dual rudder synchronisation Hydraulic (only for catamaran) Mechanic Electronic
Wing stations Available Not available
Auto-pilot Available Not available
DP system Available DP 1 or 2 Not available
VDR Available Not available
Follow-up control Required x station Not available
Eng.Cont.Room alarm panel Required Not available
Rudder angle indicator Required Not available
Power steering Required Not available
Classification Available Not available

.............................................................................................................................
Special requirements / Notes
.............................................................................................................................
.............................................................................................................................

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 NOTES

27
 on everything
that’s on sea...

This catalogue should not be used

for installation purposes.
In accordance with our policy of
continuous design improvements,
we reserve the right to alter
designs, dimensions and
specifications without notice.

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