Marine Products

2 Marine Products

Content

3 Company

4 — 5 Gear Pumps for Lubricating Oil Systems

6 Gear Pumps KFF for Marine Fuels

7 Valves

8 Multiple Pumps / Hydraulic Manifolds

10 Flow Meters

11 Fuel Consumption Measurement

12 Valve Position Indicators

12 –13 Quality Assurance

14 Customer Service

15 Sales

3

Company Over 100 years of experience make usstand out as a reliable partner.

We are a leading manufacturer of gear pumps and flowmeters. Over 300 employees at the Werdohl site and additional 85 employees in our subsidiary companies inChina, USA and Hungary design, produce and sell pro-ducts in both standard versions as well as special solutionstailor-made to customer wishes.

These high-quality components are used for gear lubrica-tion, for instance in wind power plants and ship gears,in dosing and mixing plants e.g. for manufacturing PUfoams, and in test bench technology. The range is supple-mented by products for mobile hydraulics and industrialhydraulics which are used, for example, in constructionmachinery, agricultural machines, in general mechanicalengineering and a multitude of stationary applications.

Reliability and high-quality standards are just as important a part of the corporate philosophy as fairness to custo-mers, suppliers and employees alike.

Certificate of incorporation of today‘s KRACHT GmbH

Made in Germany

1911Registration in the com-mercial register underthe name „Hillebrand &Kracht OHG“

1971Construction of today‘scompany premiseson a total area of over50,000 square meters 1983… 1993Sale through the Swedish group BAHCO through Investmentholding Industrievarden to the COMAC Group

1992Purchase of a gear manu-facturer in Hungary, nowKRACHT Hidraulik Kft. 1995First certificationaccording to DIN ENISO 9001, KRACHT Hid-raulik Kft., Budapestaccording to DIN ENISO 9002 by Lloyd`s Register Quality Company

1996KRACHT is once againin private ownership 1999Mr. Peter Zahn becomes100% proprietor ofKRACHT GmbH 2000First certificationaccording to DIN ENISO 14001

2002Mr. Heiko Zahn isappointed as SecondManaging Director

2003Certification basedon the ATEX Directive2014/34/EU 2008In New York, USA the KRACHT Corporationis founded Establishment of thesubsidiary in Shanghai,China

2011Opening of the in-househealth centre on a areaof approximately 300square meters

Oktober 2011The company KRACHThas existed for 100 years

2012In December, KRACHTwas certified by theGerman Federal Depart-ment of Aviation (LBA) and now has the status „known consignor“

2015KRACHT is certified according to AEOF

2016Construction of the 3,500 square meter logistics center

4 Marine Products

Gear Pumps for Lubricating Oil Systems

Gear Lubrication

Characteristics and Versions

— noise optimized for air containing oils (special number 197)

— working pressure … 315 bar; ISO oils up to VG 460

— version with outboard bearing for direct mounting on the gearbox and for taking radial forces (Fig. 1)

— with nozzle in shaft end for gear lubrication

— high efficiency over large ranges of speed

— high cold start viscosities at high idling speed possible

— low temperature version — ambient temperature up to –40 °C

— version in EN-GJL-250 (grey cast iron) or EN-GJS-400-15 (spheroi-dal cast iron)

— with inspection certificate EN10204-3.2 from all classification autho-rities upon request

— with SAE shaft and SAE flange (optional)

— optionally with flanged pressure valve / pressure relief valve / universal valve (universal valve = changing direction of rotation - consistent discharge flow) (Fig. 2)

— pump assembly version with electric motor (Fig. 3)

Gear pump assembly with pressure relief valve Fig. 3

Gear pump with universal valve Fig. 2

Electrically driven pump KF 3/112Mechanically driven pump KF 3/63 Fig. 1

5

Engine LubricationMain Lubrication and Pre-Lubrication Pumps

Characteristics and Versions

— Version as pre-lubrication pump with electric drive (Fig. 1)

— Version as main or pre-lubrication pump with integrated pressure relief valve with electrical or mechanical drive (Fig. 2 und Fig. 3)

— Displacement volume according to customer requirements

— Pumps with outboard bearing for taking radial forces (pinion gear drive)

— High efficiency over large ranges of speed

— Noise optimized for air containing oils (special number 197)

— Compact version with bell housing

— Pump assemblies with high and premium efficiency motors

— Standard pumps and special pumps

High Pressure Gear Pumps

KP

Displacement 1.5 … 300 cm³/r

Δp up to 315 bar possible

Speed … 4 000 1/min

Viscosity 30 … 5 000 mm²/s

Seal Rotary shaft lip-type seal

Special Pump

SOPMain lubrication pump with integrated pressure control valve and driving gear

Displacement … 3 200 cm³/r

Working pressure up to 25 bar

Speed … 3 600 1/min

Option Pressure control valve

Gear Pumps

KF

Displacement 0.5 … 1 500 cm³/r (standard)

Δp up to 50 bar possible

Speed 3 600 1/min

Viscosity 1.4 … 20 000 mm²/s

Seals Rotary shaft lip-type seal

Mechanical seal

Magnetic coupling

Option more than 400 special versions

Pre-lubrication pumpGear pump with pressure relief valve

Fig. 3

Fig. 1

Fig. 2

High Pressure Gear PumpKP 2

6 Marine Products

Gear Pumps for Marine Fuels

Gear Pumps

KFFfor Marine Fuels

Characteristics and Versions

— For marine diesel (MDO), heavy fuel oil (HFO) and marine gas oil (MGO) (Fig. 1)

— Optional with magnetic coupling for a high level of operational security and a long life (Fig. 2)

— With inspection certificate EN 10204-3.2 from all classification authorities upon request

— Special execution for low viscous and low sulphur fuels

Material Housing and Cover:Spheroidal cast iron EN-GJS-400-15

Displacement 2.5 … 630 cm³/r

Working pressure / Viscosity

p max = 12 bar at 1.2 mm²/sp max = 25 bar at 12 mm²/s

Speed 200 … 3 600 1/min

Seals Rotary shaft lip-type seal FKMMechanical seal FKMMagnetic coupling

Fuel characteristics

Viscosity 1.2 … 20 000 mm²/s(dependent on pressure,speed and lubricity)

Lubricity HFRR-test *(according to ISO 12156)

WSD ≤ 520 μm(meet the requirements of ISO 8217 for marine fuels)

* The HFRR test acc. ISO 12156 is a recognised method for measuring the lubricity of diesel fuels. The characteristic value determined using this method is referred to as Wear Scar Diameter (WSD) and increases with decreasing lubricity. This characte-ristic value is stated by the fuel manufacturers and can be included when assessing the stability of components.

Fuel oil supply modules are used for the supply for diesel engines and tied into fuel system between day tank and the engine.

Our components:

— Feeder pump KF— Booster pump KF— Pressure relief valve SPV

Fuel Oil Supply Modules

Redundant gear pumpsKF

Fig. 1

Gear Pump KFF with magnetic coupling (pump assembly) Fig. 2

7

ValvesPressure Regulation and ControlPressure Relief Directional Control Valves

Pressure Valves

DV

The DV pressure valves are used for pressure regulation in various applications in hydraulic, lubricating oil and fuel systems.By control oil connections enables external triggering or relief.

Pressure Stage Control ValveDV S Control valve, e.g. as a coupling control valve for large gears for switching between two or three pressure stages with a magnetic directional control valve.

Flow rate … 1 800 l/min

Working pressure max. 210 bar

Viscosity 4 … 2 000 mm²/s

Pressure Relief Valves

SPV/SPVF

— Directly operated pressure relief valve— For protecting of lubricating oil systems with tank connection— Applicable for pretension of lubricating oil systems— Applicable in ATEX areas— EN-GJL-300 (GG 30) oder EN-GJS-400 (GGG 40)

Flow rate … 800 l/min

Working pressure max. 120 bar

Viscosity 1.2 … 2 000 mm²/s

Option more than 50 versions

Pressure Relief Valve SPVF

Pressure Valve DV

OilGallery

LowPressure

Filter

Oil Pump

Oil Pan

LowPressureSetting

Oil Cooler

DV SPressure StageControl Valve

SolenoidValve

OilGallery

HighPressure

Filter

Oil Pump

Oil Pan

HighPressureSetting

Oil Cooler

DV SPressure StageControl Valve

SolenoidValve

Clutch Clutch

Oil Gallery

MainFlow

Filter

Oil Pump

Oil Pan

DV RPressure Regulating Valve

Oil Cooler

RegulatingPressureSetting

SurplusFlow

PilotPressure

Oil Gallery

MainFlow

Filter

Oil Pump

Oil Pan

Oil Cooler

ReliefPressureSetting

ReliefFlow

DV BPressure Relief Valve

Pressure Control ValveDV R Pressure regulation of, e.g., lubricating oil circuits in gears and diesel engines with external hydraulic signal pressure.

Pressure Relief Valve DV B Pressure relief valve or pressure retention valve for lubricating oil, fuel and hydraulic systems (optionally with internal magnetic 2-2 directional control valve for reduced pressure circulation).

Directional Control Valves

WLwith inspection certificate according to EN 10204-3.1

Nominal Size Flow rate Working pressure Media temperature

04 … 20 l/min … 320 bar —30 …80 °C

06 … 80 l/min … 320 bar —30 …80 °C

10 … 140 l/min … 350 bar —30 …80 °C

16 … 250 l/min … 350 bar —30 …80 °C

20 (25) … 700 l/min … 350 bar —30 …80 °C

Hydraulic Manifold

Multiple Pumps Hydraulic Manifolds

8 Marine Products

Multiple Pumps

Characteristics and Versions

— Counter rotating direction of flow possible

— Different sizes and types together with KRACHT pumps combinable (KF + KF / KP + KF / KP + KP)

— Acceptance of all classification societies

— Hydraulically separated

Hydraulic Manifolds

Low pressure gear pump KF+ High pressure gear pump KP

Low pressure gear pump KF + Low pressure gear pump KF

High pressure gear pump KP 2+ High pressure gear pump KP 3

Versions according to customer specifi cations— Complete hydraulic controls of clutches — Purely mechanical versions possible— Adjustable pressure curves — Optional with manual emergency override

Pressure build-up time tPressure build-up time t

Pressure build-up time t Pressure build-up time t

Pressure Build-up Curves

Clu

tch

pre

ssu

re P

K (b

ar)

Clu

tch

pre

ssu

re P

K (b

ar)

Clu

tch

pre

ssu

re P

K (b

ar)

Clu

tch

pre

ssu

re P

K (b

ar)

PK 25 PK 25

PK 25PK 25

PKV 7 PKV1 7

PKV2 7 PKV1 5 PKV1 3

PKV2 12

PKV3 12PKV2 8

0 0

9

Flow Meters for Control and Regulation of Fuel and Oil Systems

Gear Type and Screw Type Flow Meters

Gear Type Flow Meter

VC

Measuring range 0.008… 700 l/min

Working pressure max. 400 bar

Viscosity 0.6… 1 000 000 mm²/s

Accuracy +/- 0.3% from measuring value

Repeat Accuracy < 0.1 %

Measuring span 1 : 250

— Applicable in ATEX areas— EN-GJS-400 (GGG 40) or EN-GJS-600 (GGG 60)— High accuracy— Fast response speed

Gear Type Flow Meter

VCA

Measuring range 0.02… 200 l/min

Working pressure max. 200 bar

Viscosity 1… 4 000 mm²/s

Accuracy +/- 1% from measuring value

Repeat Accuracy < 0.1 %

Measuring span 1 : 200

— Applicable in ATEX areas— Aluminium housing — Threaded connections

Screw Type Flow Meter

SVC

Measuring range 0.4 … 3 750 l/min

Working pressure max. 400 bar

Viscosity 1 … 1 000 000 mm²/s

Accuracy +/- 0.2% from measuring value

Repeat Accuracy < 0.1 %

Measuring span 1 : 150

— Flow measurement with the smallest pressure drop— In-line installation and SAE connections— Max. foreign particle size 400 μm— Applicable in ATEX areas— EN-GJS-400 (GGG 40)

Gear Type Flow MeterVC

Gear Type Flow Meter VCA

Screw Type Flow MeterSVC

10 Marine Products

Fuel Consumption Measurement

Main Engine

Mixing Tank 1 Mixing Tank 2

Day Tank 1

Auxiliary Engine

Day Tank 2

Display BridgeASR 20

Screw-Type Flow MeterSVC 40

Gear Type Flow MeterVC 1

Electronics Engine RoomASR 20

Individual customer solutions on request

per [kg/nm]per [g/kWh]

Valve Position IndicatorValve Position Measuring Instrument

VOLUMEC VOLUTRONIC®

Design Gear type volume counter Gear type volume counter

max. flow rate 02: 4 l/min04: 7 l/min5: 150 l/min

0.25 up to 10 l/min

max. working pressure 02 / 04: 200 bar5: 300 bar

160 bar

Display mechanical by downstreamelectronic possible

Current-independent display yes –

Current-independentposition detection

yes no

Leakage detection yes by downstreamelectronic possible

Reset function at slipping clutch by downstreamelectronic possible

Calibration to actuator size by gear reducing by downstreamelectronic possible

Flow direction must be defined A-B / B-A

Error message no by downstreamelectronic possible

Hydraulic Manifolds

HB 4 0311 HB 4 0324Description — double pilot operated check valve for holding the

actuator position— two pressure relief valves for limiting the pressure

caused by increased temperature— throttle valve in port A for speed regulation of the

actuator— check valve for filling the piping to avoid wrong

indications when temperature fluctuates

— check valve in P for holding the actuator position when switching parallel actuators

— check valve in T to avoid indicator fluctuations due to pressure pulsation

— one temperature pressure relief valve for limiting the pressure caused by increased temperature

— throttle valve in port A for speed regulation of the actuator

— check valve for filling the piping to avoid wrong indications when temperature fluctuates

Schematic

11

Schema 0311 Schema 0324Schema 0311 Schema 0324

Day Tank 2

Gear Type Flow MeterVC 1

Quality Assuranceat KRACHT

12 Marine Products

Machinery

Housing and Cover Manufacture

The main components of our products comprise the housing and the cover.These components are manufactured in all sizes (GG-25 to GGG-40) fromcasts as well as from stainless steel and aluminium. The dimensional accuracyof the components in the entire material spectrum lies in the μm-range.

All housings and covers are fabricated completely on our ultra-modern hori-zontal Mazak machining centres. The constant coolant temperature stabiliza-tion, a cooling system for the ball roller spindles and a linear system for allaxes guarantees the precision.

To reduce the clamping and setup times, all the machines are equippedwith multi-palettes and have machine-monitoring systems for fully-automaticmachining. The machining tools in use are ceramic, CBN or TIN coated, whichis another characteristic feature of the high KRACHT quality.

To ensure the guarantee of long-term precision, all machining centers are put through a machine capability analysis annually by our quality assurance department.

All products are put through a 100% pre-delivery inspection. Along with the functions, all working parameters are set on the test bench and can be certifi ed according to DIN EN 10204.

KRACHT GmbH, Werdohl

according to DIN EN ISO 9001

according to DIN EN ISO 14001

according to ATEX 2014/34/EU

KRACHT Hidraulik Kft., Budapest

according to DIN EN ISO 9002

13

Gear Manufacture

Since our components are highly complex and high requirements areplaced on the quality of the workpieces, the manufacture of gearing andthe external cylindrical machining pose a special challenge.

We are perfectly up to the challenge.

We manufacture our products on ultra-modern gear hobbing machines,generating grinding machines, profi le grinders and on external cylindricaland internal cylindrical grinders. Prefabricated rotating blanks are preparedand machined on CNC-gear hobbing machines with vertical workpiece axis.The external cylindrical machining is undertaken on CNC-angular plunge-cuttables. This grinding technology is highly versatile and its enormous pro-

ductivity simultaneously impressive. We are capable of grinding nearly any workpiece contours with one, single grindstone – in one, single clamping restraint. After completing the external cylindrical machining, thegear sections are conclusively ground on CNC-toothprofi le sharpening machines with the generation grindingmethod.

The measuring equipment integrated in the machineryfacilitates measuring all relevant tooth dimensions. Thatgreatly reduces the setup times when setting up newmachining jobs. Compliant with the housing and covermanufacturing, these machines are also put through aannual machine capability analysis by the qualityassurance department.

Customer ServiceFair, reliable and competent

We have been developing, designing and manufacturinghigh-quality products for 100 years. Special solutions areimplemented in close cooperation with our customers.On schedule performance and full comprehensive serviceare our top priorities.

Customer

Latest

production methods

On-site consulting

by our

product specialists

100%

pre-delivery inspection

Comprehensive documentation

in national language

After-Sales-Service

14 Marine Products

Sales International

15

We are ready to support you around the world with the professional mastery of specifi c applications and complete solutions. A closely woven network of sales and customer specialists provide the right tools for national and international consulting and optimal customer service.

AustraliaAustriaBelgiumCanada

ChinaCzech RepublicDenmarkFinland

FranceGermanyHollandHong Kong

HungaryItalyJapanKorea

LuxembourgNorway PolandPortugal

RussiaSlovakiaSloveniaSouth Africa

SpainSwedenSwitzerlandTurkey

United KingdomUSA

03

/201

7 G

B

KRACHT GmbH · Gewerbestraße 20 · 58791 Werdohl, Germany Phone +49 2392.935 0 · Fax +49 2392.935 209Email info@kracht.eu · Web www.kracht.eu