flex separation systems, s-separators 805/815 flex range/s... · s and p flex separation systems...

16
Cleaning systems for heavy fuel oils* S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com- bine the high efficiency, low sludge output and low operating cost of Alfa Laval centrifugal separators with a flexible scope of supply. Extensive possibilities for the separation system layout and assembly make it possible to suit any engine room and any oil sepa- ration application. In addition, S and P Flex separation systems feature the new EPC 60 controller, which enables the intuitive navigation of menus, parameters and alarms. The EPC 60 controller has a modular construction for easy I/O board addition and replacement. The S and P Flex separation concept includes the complete S- and P-separator range. These can all be combined in mixed ship sets, even within a single customer-specified module. Separator EPC 60 controller Oil block incl. water transducer Water block Change-over valve Flex separation systems, S-separators 805/815 Application S-separators S-separators are based on Alcap technology, which means they automatically adjust the oil/water interphase and also supervise the water content in the clean oil outlet. This makes them particularly suitable for separating heavy fuel oils with varying density, although they can be used to clean all of the following: Heavy fuel oils with densities up to 1 010 kg/m 3 and viscosities up to 700 cSt/50° C (higher viscosities available upon request) Lubricating oils Distillates Lighter diesel oils S-separators 805/815 optimized for lower flows onboard small ships combine ease of use, low operating cost and robust design ensuring high reliability. They are designed for automatic opera- tion in periodically unmanned engine rooms at sea and in automated power stations ashore. Flex system components for S-separators 805/815. * S-separators 805/815 can also be used to clean lighter fuel oils and lubricating oils.

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Page 1: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

Cleaning systems for heavy fuel oils*

S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, low sludge output and low operating cost of Alfa Laval centrifugal separators with a flexible scope of supply. Extensive possibilities for the separation system layout and assembly make it possible to suit any engine room and any oil sepa-ration application.

In addition, S and P Flex separation systems feature the new EPC 60 controller, which enables the intuitive navigation of menus, parameters and alarms. The EPC 60 controller has a modular construction for easy I/O board addition and replacement.

The S and P Flex separation concept includes the complete S- and P-separator range. These can all be combined in mixed ship sets, even within a single customer- specified module.

Separator EPC 60 controller

Oil block incl. water transducer

Water block

Change-over valve

Flex separation systems, S-separators 805/815

Application S-separatorsS-separators are based on Alcap technology, which means they automatically adjust the oil/water interphase and also supervise the water content in the clean oil outlet. This makes them particularly suitable for separating heavy fuel oils with varying density, although they can be used to clean all of the following: Heavy fuel oils with densities up to 1 010 kg/m3

and viscosities up to 700 cSt/50°C (higher viscosities available upon request)

Lubricating oils Distillates Lighter diesel oils

S-separators 805/815 optimized for lower flows onboard small ships combine ease of use, low operating cost and robust design ensuring high reliability. They are designed for automatic opera-tion in periodically unmanned engine rooms at sea and in automated power stations ashore.

Flex system components for S-separators 805/815. * S-separators 805/815 can also be used to clean lighter fuel oils and lubricating oils.

Page 2: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

Scope of supplyThe S and P Flex separation concept provides a wide range of alternatives for S-separators. Depending on the need, an S-separator can be supplied as a separator with ancillaries, as a customer-specified module or as part of a comprehensive package including services and order- specific documentation.

Flex systemAn S-separator with ancillaries in the form of optimized block components provides full say over the use of space. This allows for local modularization or do-it-yourself assembly.

Flex modulesA compact S-separator module can be built to a customer-specified configuration from a wide range of modular skids and machine blocks. Multi-modules are possible, as well as mixed modules including one or more S-separators and/or P-separators for the simultaneous treatment of different types of mineral oils. All Flex modules are factory tested to ensure faster start-up and commissioning.

Small footprint, high flexibility  The small separator and the modular nature of the surrounding components allow easy installation and flexible positioning in the engine room.

Optimum performance with Alcap technology A water transducer in the clean oil outlet automatically adjusts the oil/water interphase to maximize separation performance.

High separation efficiency  An optimized design ensures the best possible separation efficiency from the bowl and disc stack.

Simple installation  No tank is needed to supply operating water and no pipe is needed to discharge it, which further simplifies installation.

Separate feed pump   A separate feed pump reduces pipe- work to and from the preheater.

Low oil loss   The separator’s highly efficient displace- ment ensures that virtually no oil is lost.

Efficient discharge   Separated sludge and water are effi- ciently removed from the system.

Easy operation and service The new PLC based EPC 60

controller is designed for “one- button” starts and stops, as well as intuitive menu navigation. Information about parameters and alarms can be easily accessed, which simplifies both operation and troubleshooting. The EPC 60 also has a modular construction that enables faster troubleshooting and I/O board replacement.

Remote monitoring Using either Ethernet or Bus communication, Flex systems and modules based on S-separators 805/815 can be supervised remotely from the control room. A variety of alarm functions is available as standard and extra I/O boards can be added to the EPC 60 controller in order to enhance its monitoring capabilities.

Features and benefits

Displacement water inlet

Oil inlet

Oil outlet

Paring disc

Disc stack

Sludge andwater outlet

Sludge andwater outlet

Opening water

Closing water

Bowl spindle

Module examples

Single Flex Module with separator (excluding heater and pump)

Single Flex Module with separator, heater and pump

QuAdruPle Flex Module with separators, heaters and pumps

Page 3: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

operating principle

A Flex separation system based on S-separators 805/815 is operated automatically by the EPC 60 controller, except at startup. Untreated oil, heated to the correct temperature, is fed continuously to the separator, which is driven by an electric motor via a friction clutch and belt.

The separator bowl is fixed at the top of a spindle, which is supported by bearings and springs. During operation separated sludge and water accumulate at the bowl periphery and are intermittently discharged by the high- precision discharge system.

Operation of the separator is based on the Alcap principle, which means the separator automatically adjusts to the density of the oil. Thus, no gravity disc is needed. A water transducer in the clean oil outlet measures capacitive resis-tance and signals changes to the EPC 60 controller.

When the water content has increased or the timer setting has expired, the system automatically discharges the accumulated water and sludge through the bowl discharge ports during a controlled sludge discharge.

During normal operation, vital process parameters are monitored. These parameters, as well as alarms, are indicated by easy-to-understand text messages on the LCD display of the EPC 60 controller.

The EPC 60 controller provides many alarm functions, in-cluding alarms for low oil pressure, high sludge tank level (if the optional sludge removal kit is included) and power failure. Additional functions are available as well.

optional equipment

Flex separation systems based on S-separators 805/815 can be complemented with the following equipment:

Starter (included in module versions)

Heater

Space heating

Additional thermometers

Vibration switch

Feed pump (see feed pump delivery options below)

Strainer

Flow regulating system

Sludge removal kit

Sludge outlet butterfly valve kit

Steam shut-off valve kit

Air pressure reducer valve

Pipe arrangement for multiple modules, including heater cross-connection

Emergency safety shutdown

Remote monitoring

Sludge andwater outlet

Conditioning water

Opening water

Closing waterWater inlet

PTUntreatedoil inlet

Oilreturn

Clean oiloutlet

EPC 601 42 3 74

8

5

Optional

PT

6

MT

1. Feed pump2. Heater3. Pneumatically controlled

change-over valve4. Pressure transmitter5. Control unit6. Water transducer7. Regulating valve8. Solenoid valve block, water

System layout

1. Feed pump 2. Heater 3. Pneumatically controlled

change-over valve 4. Pressure transmitter 5. Control unit 6. Water transducer 7. Regulating valve 8. Solenoid valve block, water

Pump delivered loose

Pump mounted on skid

Pump module, 3 skids mounted together

Feed pump options

Page 4: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

0 250 500 750 1000 1250 1500 1750 2000

500

S 815

S 805

1 000 1 500 2 000 l/h0

operationsA preventive maintenance prog ramme using Alfa Laval Service Kits ensures safe and easy maintenance.

Recommended maintenance intervals:

Intermediate Service every 2 000 hours or 3 months Major Service every 8 000 hours or 12 months

Service kits contain all necessary spare parts for each service and tips for maintenance at regular intervals:

Intermediate Service Kit with O-rings and seals for separator bowl, inlet and outlet Major Service Kit with parts for drive system, belt, bearings and friction pads

The System Manual includes detailed information in electronic or printed form: Installation instructions Operating instructions Alarms and troubleshooting Service and spare parts

Commissioning and technical services, including startup assis-tance and advice on operation and maintenance, are available from all Alfa Laval offices

Training in all aspects of oil treatment, freshwater generation and heat transfer is available

All services can be incorporated into specially tailored Nonstop Performance packages. Details are available from local Alfa Laval offices

How to contact Alfa lavalContact details for all countries are continually updated on our web site. Please visit www.alfalaval.com to access the information directly.

EMD00234EN 1008 Alfa Laval reserves the right to change specifications without prior notification.

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ConformityThe mark of conformity confirms that the equipment complies with European Economics Area (EEA) directives.

** Dimensions and weights for Flex modules do not include pump and heater.

flexsystem size(height x width x length)* netweight* S 805 928 x 750 x 1035 286 kg S 815 928 x 750 x 1035 293 kg

flexmodule size(height x width x length)** netweight** S 805 1750 x 750 x 1075 433 kg S 815 1750 x 750 x 1075 438 kg

technicaldata

Main supply voltage 3-phase, 220 V up to 690 V Control voltage 1-phase, 100/110/115/230 V Frequency 50 or 60 Hz Control air Min. 5 bar, max. 8 bar Operating water pressure Min. 2 bar, max. 8 bar

Max. recommended Capacity, l/h on HFo 380 cSt/50 ºC

* Dimensions and weights for Flex systems do not include control cabinet.

Page 5: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

Cleaning systems for heavy fuel oils*

Flex system components for S-separators 821–886.

Water block

Flex separation systems, S-separators 821–886

* S-separators can be also be used to clean lighter oils.

Separator EPC 60 controller

Oil block incl.water transducer

Change-over valve

S and P Flex separation systems Alfa Laval’s S and P Flex separation systems combi-ne the high efficiency, low sludge output and low operating cost of Alfa Laval centrifugal separators with a flexible scope of supply. Extensive possibilities for the separation system layout and assembly make it possible to suit any engine room and any oil sepa-ration application.

In addition, S and P Flex separation systems feature the new EPC 60 controller, which enables the intuiti-ve navigation of menus, parameters and alarms. The EPC 60 controller also has a modular construction for easy I/O board addition and replacement.

Included in the S and P Flex separation concept are all S-separators 805–886 and P-separators 605–636. These can be combined in mixed ship sets, even within a single customer-specified module.

Application: S-separatorsS-separators are based on Alcap technology, which means they automatically adjust the oil/water interphase based on the water content in the clean oil outlet. This makes them particularly suitablefor separating heavy fuel oils with varying density, though they can be used to clean all of the following:

Heavy fuel oils with densities up to 1010 kg/m3

and viscosities up to 700 cSt/50ºC (higher viscosities upon request)

Lubricating oils

Distillates

Lighter diesel oils

S-separators are designed for automatic operationin periodically unmanned engine rooms at sea and in automated power stations ashore.

Page 6: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

Paring tube

Seal ring

Discharge ports

Discharge slide

CentriLock

Untreated oil

Clean oil outlet

Water outlet

Scope of supplyThe S and P Flex separation concept provides a wide range of alternatives for S-separators. Depending on the need, an S-separator can be supplied as a separator and ancillaries, as a customer-specified module, or as part of a comprehensive package including services and order-specific documentation.

S Flex system (block components)An S-separator with ancillaries in the form of optimized block components provides full say over the use of space. This allows for local modularization or do-it-yourself assembly.

S Flex modulesA compact S-separator module can be built to a customer-specified configuration from a wide range of modular skids and machine blocks. Multi-modules are pos-sible, as well as mixed modules including one or more S-separators and/or P-separators for the simultaneous treat-ment of different types of mineral oils. All Flex modules are factory tested to ensure faster start-up and commissioning.

Module examples

SINGLE FLEX MODULE with separator (excluding heater and pump)

SINGLE FLEX MODULE with separator, heater and pump

QUADRUPLE FLEX MODULE with separators, heaters and pumps

Features and benefits

Small footprint, high flexibility The small separator and the modular nature of the surrounding components allow easy installation and flexible posi- tioning in the engine room.

Alcap technology A water transducer in the clean oil outlet automatically adjusts the oil/ water inter- phase to maximize separation perfor- mance.

High separation efficiency An optimized design ensures the best possible separation efficiency from the bowl and disc stack.

CentriShoot The CentriShoot discharge system greatly reduces sludge volumes. Its fixed dis- charge side flexes gently to expose the discharge ports, thereby eliminating metal- to-metal wear.

CentriLock The CentriLock bowl-locking system uses a lightweight, non-threaded snap ring. This prevents wear by allowing easy removal without a sledgehammer.

Long service intervals Wear-preventing features like CentriShoot and CentriLock reduce the consumption of spare parts and allow planned mainte- nance to be performed less often. This reduces operating costs.

Easy operation and service The new EPC 60 controller is designed for “one-button” starts and stops, as well as intuitive menu navigation. Infor- mation about parameters and alarms can be easily accessed, which simplifies both operation and troubleshooting. The EPC 60 also has a modular con- struction that enables faster trouble- shooting and I/O board replacement.

Remote control and monitoringUsing Ethernet or Bus communication, Flex systems and modules based on S-separators can be operated and supervised remotely from the control room. A variety of alarm functions are available as standard, and extra I/O boards can be added to the EPC 60 controller in order to enhance its opera-ting and monitoring capabilities.

Page 7: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

Starter (included in module versions)

Heater

Heater control board in EPC 60 controller

Space heating

Additional thermometers

Vibration sensor kit

Feed pump Supplied loose Mounted on a separate skid Incorporated into a module As a pump module (multiple pump skids mounted together)

Flow regulating system

Sludge removal kit Sludge outlet butterfly valve kit

Pressure indicators

Root valves for PI

Needle valves

Steam shut-off valve kit

Air pressure reducer valve

Pipe arrangement for multiple modules, including heater cross-connection

Emergency safety shutdown

Remote monitoring and control

Separator lifting tool

Optional equipmentFlex separation systems based on S-separators can be complemented with the following equipment:

Feed pump options

Pump deliveredloose

Pump mounted on skid

Pump module, 3 skids mounted together

1 Feed pump 2 Heater 3 Temperature transmitter 4 Safety valve

5 Change-over valve 6 Process controller 7 Pressure transmitter – oil 8 Water transducer

9 Regulating valve – oil 10 Pneumatic shut-off valve 11 Valve block water 12 Separator

13 Pressure transmitter – water 14 Drain valve 15 Sludge removal kit 16 Regulating valve

Schematic diagram

Page 8: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

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System layout

1. Feed pump 2. Heater 3. Temperature transmitter 4. Pressure transmitter, oil 5. Pneumatically controlled

change-over valve

6. Control unit 7. Pressure transmitter, oil 8. Water transducer 9. Pneumatically controlled

shut-off valve10. Regulating valve

11. Solenoid valve block, water12. Separator13. Pressure transmitter, water14. Drain valve

Operating principle

An S and P Flex separation system based on an S-separator 821– 886 is operated automatically by the EPC 60 controller. Untreated oil, heated to the correct tempera-ture, is fed continuously to the separator, which is driven by an electric motor via a friction clutch and belt.

The separator bowl is fixed at the top of a spindle, which is supported by bearings and special composite springs. During operation, separated sludge and water accumulate at the bowl periphery and are intermittently discharged by the high-precision CentriShoot discharge system.

The separator’s operation is based on the Alcap principle, which means the separator automatically adjusts to the nature of the oil. No gravity disc is needed. A water trans-ducer in the clean oil outlet measures capacitative resist-ance and signals changes to the EPC 60 controller.

Depending on the water content, the EPC 60 either opens the drain valve or expels the water through the bowl dis-charge ports during sludge discharge. A patented paring tube adapts itself to remove the water from the bowl while a paring disc pumps away the clean oil.

During normal operation, vital process parameters are mon-itored. These parameters, as well as alarms, are indicated by easy-to-understand text messages on the LCD display of the EPC 60 controller.

Separation Performance Standard (SPS)

The flow rates on the back of this leaflet show the maximum recommended capacities for S-separators 821–886. Alternatively, Alfa Laval can supply S- separators 821–886 in accordance with the marine Separation Performance Standard, SPS (CWA 15375).

The aim of the SPS is to establish a separator’s ability to remove hard, abrasive particles from heavy fuel oils. Verified by classification societies, it provides a reliable method of evaluating and comparing the separation performance of different fuel oil separators.

Actual catalytic fines and the spherical particles used to verify

separation performance.

The EPC 60 controller provides many alarm functions, including alarms for low oil pressure, high sludge tank level (if the optional sludge removal kit is included) and power failure. Additional functions are available for a vibration alarm when the optional vibration sensor is fitted.

Page 9: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

CentriShoot CentriLock

STEP ONE:The CentriShoot discharge slide is fixed at the centre. During separation, the slide covers the discharge ports.

An Allen key is the only tool needed to work with CentriLock. No sledgehammer is necessary.

STEP TWO:During sludge discharge, the edge of the slide flexes downward, exposing the discharge ports.

The CentriLock snap ring lifts out and snaps in easily – without any threads to wear.

STEP THREE:After discharge, the slide moves gently back into position to close the ports. This is done hydraulically, without any springs.

Instead of a sliding bowl bottom, the CentriShoot discharge system features a fixed discharge slide that flexes at its edge. This increases discharge accuracy and does away with metal-to-metal wear.

Conventional lock rings are threaded and must be removed with a sledgehammer. Over time, the metal-to-metal wear between bowl and lock ring can lead to expensive bowl repair or replacement.

Instead of a conventional lock ring, the CentriLock bowl-locking system features a non-threaded snap ring. This lightweight ring snaps quickly into place and is easily removed with only an Allen key.

Page 10: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

FLEX SYSTEM SIZE (HEIGHT X WIDTH X LENGTH)* NET WEIGHT

S 821/826 970 x 750 x 1075 391 kg S 831/836 1059 x 850 x 1195 447 kg S 841/846 1123 x 850 x 1195 525 kg S 851/856 1291 x 1000 x 1325 728 kg S 861/866 1405 x 1000 x 1325 893 kg S 871/876 1526 x 1250 x 1525 1246 kg S 881/886 1713 x 1250 x 1525 1632 kg

FLEX MODULE

S 821/826 1750 x 750 x 1075 505 kg S 831/836 1750 x 850 x 1195 585 kg S 841/846 1750 x 850 x 1195 660 kg S 851/856 1766 x 1000 x 1325 935 kg S 861/866 1766 x 1000 x 1325 1100 kg S 871/876 1766 x 1250 x 1525 1490 kg S 881/886 1766 x 1250 x 1525 1865 kg

TECHNICAL DATA

Main supply voltage 3-phase, 220 V up to 690 V Control voltage 1-phase, 100/110/115/230 V Frequency 50 or 60 Hz Control air Min 5 bar, max 8 bar Operating water pressure Min 2 bar, max 8 bar

Max. Recommended Capacity, l/h HFO 380 cSt/50˚COperationsPreventive maintenance procedures are handled quickly and simply with the help of a compression tool. The snap ring of the patented CentriLock bowl-locking system is non-threaded and requires only an Allen key to remove.

Maintenance intervals: Inspection Service every 4000 h or 6 months. Overhaul Service every 12 000 h or 18 months.

Service spares kits contain all necessary spare parts for each service and tips for maintenance in checkpoints: Inspection Kit with O-rings and seals for separator bowl. Overhaul Kit with parts for drive system, belt, bearings and pads. Also contains an Inspection Kit. Support Kit with strategic spares for operation and main- tenance backup.

The System Manual includes detailed information in electronic or printed form: Installation instructions. Operating instructions. Alarms and troubleshooting. Service and spare parts.

Commissioning and technical services are available from all Alfa Laval offices, including start- up assistance and advice on operation and maintenance.

Training in all aspects of oil treat- ment, freshwater generation and cooling is available.

All services can be incorporated into specially tailored Nonstop Performance packages. Details are available from local Alfa Laval offices.

How to contact Alfa LavalContact details for all countries are continually updated on our web site. Please visit www.alfalaval.com to access the information direct.

EMD00146EN 1003 Alfa Laval reserves the right to change specifications without prior notification.

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ConformityThe mark of conformity confirms that the equipment complies with European Economics Area (EEA) directives.

All dimensions and weights are excluding pump and heater.

* Dimensions for Flex systems are excluding control cabinet.

This leaflet contains data for Flex systems and modules based on S-separators 821–886. For data on the other separators within the Flex concept, refer to the Flex separation system leaflets for S-separators 805/815 and P-separators 605/615, 626/636.

Page 11: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

Cleaning systems for heavy fuel oils*

Flex system components for S-separators 921–987.

Water block

Flex separation systems, S-separators 921–987

* S-separators can also be used to clean lighter fuel oils and lubricating oils.

Separator EPC 60 controller

Oil block incl. water transducer

Change-over valve

S and p Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, low sludge output and low operating cost of Alfa Laval centrifugal separators with a flexible scope of supply. Extensive possibilities for the separation system layout and assembly make it possible to suit any engine room and any oil sepa-ration application.

In addition, S and P Flex separation systems feature the new EPC 60 controller, which enables the intuitive navigation of menus, parameters and alarms. The EPC 60 controller also has a modular construction for easy I/O board addition and replacement.

The S and P Flex separation concept includes the complete S- and P-separator range. These can be combined in mixed ship sets, even within a single customer-specified module.

Application S-separatorsS-separators are based on Alcap technology, which means they automatically adjust the oil/water interphase based on the water content in the clean oil outlet. This makes them particularly suitable for separating heavy fuel oils with varying density, though they can be used to clean all of the following:

Heavy fuel oils with densities up to 1 010 kg/m3

and viscosities up to 700 cSt/50ºC (higher viscosities upon request)

Lubricating oils

Distillates

Lighter diesel oils

S-separators are designed for automatic operationin periodically unmanned engine rooms at sea and in automated power stations ashore.

Page 12: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

paring tube

Seal ring

Discharge ports

Discharge slide

CentriLock

Untreated oil

Clean oil outlet

water outlet

Scope of supplyThe S and P Flex separation concept provides a wide range of alternatives for S-separators. Depending on the need, an S-separator can be supplied as a separator and ancillaries, as a customer-specified module, or as part of a comprehensive package including services and order- specific documentation.

Flex systemAn S-separator with ancillaries in the form of optimized block components provides full say over the use of space. This allows for local modularization or do-it-yourself assembly.

Flex modulesA compact S-separator module can be built to a customer-specified configuration from a wide range of modular skids and machine blocks. Multi-modules are possi-ble, as well as mixed modules including one or more S-separators and/or P-separators for the simultaneous treat-ment of different types of mineral oils. All Flex modules are factory tested to ensure faster start-up and commissioning.

Module examples

SingLe FLex MoDULe with separator (excluding heater and pump)

SingLe FLex MoDULe with separator, heater and pump

QUADrUpLe FLex MoDULe with separators, heaters and pumps

Features and benefits

Small footprint, high flexibility The small separator and the modular nature of the surrounding components allow easy installation and flexible posi- tioning in the engine room.

Alcap technology A water transducer in the clean oil outlet automatically adjusts the oil/water inter- phase to maximize separation perfor- mance.

High separation efficiency An optimized design ensures the best possible separation efficiency from the bowl and disc stack.

CentriShoot The CentriShoot discharge system greatly reduces sludge volumes. Its fixed dis- charge slide flexes gently to expose the discharge ports, thereby eliminating metal- to-metal wear.

CentriLock The CentriLock bowl-locking system uses a lightweight, non-threaded snap ring. This prevents wear by allowing easy removal without a sledgehammer.

Long service intervals Wear-preventing features like CentriShoot and CentriLock reduce the consumption of spare parts and allow planned mainte- nance to be performed less often. This reduces operating costs.

Easy operation and service The new PLC based EPC 60 controller

is designed for “one-button” starts and stops, as well as intuitive menu navigation. Information about parameters and alarms can be easily accessed, which simplifies both operation and troubleshooting. The EPC 60 also has a modular construction that enables faster troubleshooting and I/O board replacement.

Remote control and monitoringUsing Ethernet or Bus communication, Flex systems and modules based on S-separators 921–987 can be operated and supervised remotely from the con-trol room. A variety of alarm functions are available as standard, and extra I/O boards can be added to the EPC 60 controller in order to enhance its opera-ting and monitoring capabilities.

Page 13: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

Starter (included in module versions)

Heater

Space heating

Additional thermometers

Vibration sensor kit

Feed pump Supplied loose Mounted on a separate skid Incorporated into a module As a pump module (multiple pump skids mounted together)

Flow regulating system

Sludge removal kit Sludge outlet butterfly valve kit

Steam shut-off valve kit

Air pressure reducer valve

Pipe arrangement for multiple modules, including heater cross-connection

Emergency safety shutdown

Remote monitoring and control

Separator lifting tool

optional equipmentFlex separation systems based on S-separators 921–987 can be complemented with the following equipment:

Feed pump options

Pump delivered loose

Pump mounted on skid

Pump module, 3 skids mounted together

1 Feed pump 2 Heater 3 Temperature transmitter 4 Safety valve

5 Change-over valve 6 Process controller 7 Pressure transmitter – oil 8 Water transducer

9 Regulating valve – oil 10 Pneumatic shut-off valve 11 Valve block water 12 Separator

13 Pressure transmitter – water 14 Drain valve 15 Sludge removal kit 16 Regulating valve

Schematic diagram

Page 14: Flex separation systems, S-separators 805/815 Flex Range/S... · S and P Flex separation systems Alfa Laval’s S and P Flex separation systems com-bine the high efficiency, ... construction

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System layout

1. Feed pump 2. Heater 3. Temperature transmitter 4. Pressure transmitter, oil 5. Pneumatically controlled

change-over valve

6. Control unit 7. Pressure transmitter, oil 8. Water transducer 9. Pneumatically controlled

shut-off valve10. Regulating valve

11. Solenoid valve block, water12. Separator13. Pressure transmitter, water14. Drain valve

operating principle

A Flex separation system based on an S-separator 921– 987 is operated automatically by the EPC 60 controller. Untreated oil, heated to the correct temperature, is fed continuously to the separator, which is driven by an electric motor via a friction clutch and belt.

The separator bowl is fixed at the top of a spindle, which is supported by bearings and special composite springs. During operation, separated sludge and water accumulate at the bowl periphery and are intermittently discharged by the high-precision CentriShoot discharge system.

The separator’s operation is based on the Alcap principle, which means the separator automatically adjusts to the nature of the oil. No gravity disc is needed. A water trans-ducer in the clean oil outlet measures capacitative resist-ance and signals changes to the EPC 60 controller.

Depending on the water content, the EPC 60 either opens the drain valve or expels the water through the bowl dis-charge ports during sludge discharge. A patented paring tube adapts itself to remove the water from the bowl while a paring disc pumps away the clean oil.

During normal operation, vital process parameters are mon-itored. These parameters, as well as alarms, are indicated by easy-to-understand text messages on the LCD display of the EPC 60 controller.

The EPC 60 controller provides many alarm functions, including alarms for low oil pressure, high sludge tank level (if the optional sludge removal kit is included) and power failure. Additional functions are available for a vibration alarm when the optional vibration sensor is fitted.

Separation performance Standard (SpS)

Actual catalytic fines and the spherical particles used to verify

separation performance.

The flow rates on the back of this leaflet show the maximum recommended capacities for S-separators. Alternatively, Alfa Laval can supply S- separators in accordance with the marine Separation Performance Standard, SPS (CWA 15375).

The aim of the SPS is to establish a separator’s ability to remove hard, abrasive particles from heavy fuel oils. Verified by classification societies, it provides a reliable method of evaluating and comparing the separation performance of different fuel oil separators.

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CentriShoot CentriLock

Step one:The CentriShoot discharge slide is fixed at the centre. During separation, the slide covers the discharge ports.

An Allen key is the only tool needed to work with CentriLock. No sledgehammer is necessary.

Step two:During sludge discharge, the edge of the slide flexes downward, exposing the discharge ports.

The CentriLock snap ring lifts out and snaps in easily – without any threads to wear.

Step three:After discharge, the slide moves gently back into position to close the ports. This is done hydraulically, without any springs.

Instead of a sliding bowl bottom, the CentriShoot discharge system features a fixed discharge slide that flexes at its edge. This increases discharge accuracy and does away with metal-to-metal wear.

Conventional lock rings are threaded and must be removed with a sledgehammer. Over time, the metal-to-metal wear between bowl and lock ring can lead to expensive bowl repair or replacement.

Instead of a conventional lock ring, the CentriLock bowl-locking system features a non-threaded snap ring. This lightweight ring snaps quickly into place and is easily removed with only an Allen key.

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2 000 4 000 6 000 8 000 10 000 12 000 14 000 16 000 18 000 20 000 22 000 24 000

S 921

S 926

S 927

S 936

S 937

S 946

S 947

S 956

S 957

S 966

S 967

S 976

S 977

S 986

S 987

0100020003000400050006000700080009000100001100012000130001400015000160001700018000190002000021000220002300024000

0

flexsystem size(height x width x length)* netweight* S 921/926/927 970 x 750 x 1075 391 kg S 936/937 1059 x 850 x 1195 447 kg S 946/947 1123 x 850 x 1195 525 kg S 956/957 1291 x 1000 x 1325 728 kg S 966/967 1405 x 1000 x 1325 893 kg S 976/977 1526 x 1250 x 1525 1246 kg S 986/987 1713 x 1250 x 1525 1632 kg

flexmodule size(height x width x length)** netweight** S 921/926/927 1750 x 750 x 1075 505 kg S 936/937 1750 x 850 x 1195 585 kg S 946/947 1750 x 850 x 1195 660 kg S 956/957 1766 x 1000 x 1325 935 kg S 966/967 1766 x 1000 x 1325 1100 kg S 976/977 1766 x 1250 x 1525 1490 kg S 986/987 1766 x 1250 x 1525 1865 kg

technicaldata

Main supply voltage 3-phase, 220 V up to 690 V Control voltage 1-phase, 100/110/115/230 V Frequency 50 or 60 Hz Control air Min 5 bar, max 8 bar Operating water pressure Min 2 bar, max 8 bar

Max. recommended Capacity, l/h hFo 380 cSt/50˚CoperationsPreventive maintenance procedures are handled quickly and simply with the help of a compression tool. The snap ring of the patented CentriLock bowl-locking system is non-threaded and requires only an Allen key to remove.

Maintenance intervals: Inspection Service every 4 000 h or 6 months Overhaul Service every 12 000 h or 18 months

Service spares kits contain all necessary spare parts for each service and tips for maintenance in checkpoints: Inspection Kit with O-rings and seals for separator bowl Overhaul Kit with parts for

drive system, belt, bearings and pads, also containing an Inspection Kit

Support Kit with strategic spares for operation and main- tenance backup

The System Manual includes detailed information in electronic or printed form: Installation instructions Operating instructions Alarms and troubleshooting Service and spare parts

Commissioning and technical services are available from all Alfa Laval offices, including start- up assistance and advice on operation and maintenance

Training in all aspects of oil treat- ment, freshwater generation and heat transfer is available

All services can be incorporated into specially tailored Nonstop Performance packages. Details are available from local Alfa Laval offices

how to contact Alfa LavalContact details for all countries are continually updated on our web site. Please visit www.alfalaval.com to access the information directly.

EMD00233EN 1008 Alfa Laval reserves the right to change specifications without prior notification.

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ConformityThe mark of conformity confirms that the equipment complies with European Economics Area (EEA) directives.

** Dimensions and weights for Flex modules do not include pump and heater.

* Dimensions and weights for Flex systems do not include control cabinet.