Alfa Laval MIB 303S-13 Manual
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Alfa Laval MIB 303S-13 Manual

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Иван
June 1, 2025

Здравствуйте Подскажите куда копать уже всё перепробовал ни чего не помогает сепаратор алфа Лаваль 303 льёт топливо в шлам Резинки всё поменял, кольца менял

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1 comments:
Mr. Anderson
June 1, 2025

Fuel leaking into the sludge in an Alfa Laval separator model MIB 303S-13 could be caused by the three screws fastening the bowl hood or the paring disc knob not being completely tightened, leading to leakage. Another possible cause is insufficient sealing between the bottom disc and bowl bottom in purifier mode, possibly due to missing O-rings or incorrect assembly.

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Summary of Contents for Alfa Laval MIB 303S-13

  • Page 1 > >:3$!$D"$ $$ DVaRcRe`c>R_fR] ?a^SdRc=^ &%% " 1^^Z=^ !& !#!E!
  • Page 2 Telephone: +46 8 53 06 50 00 Telefax: +46 8 53 03 10 40 Printed in Sweden, 00-08 © Alfa Laval Separation AB 2000 This publication or any part thereof may not be reproduced or transmitted by any process or means without prior written permission of...

  • Page 3: Table Of Contents

    Contents Safety Instructions Separator Basics 2.1 Application 2.2 Conversion kit 2.3 Description of main parts 2.3.1 Overview 2.3.2 Detailed description 2.3.3 Paring disc 2.4 Working principle 2.4.1 Clarifier mode 2.4.2 Purifier mode 2.5 Changing operation mode Operating Instructions 3.1 Separation mode 3.2 Separation time 3.3 Operating routine 3.3.1 Introduction...
  • Page 4 Trouble shooting 4.1 The separator does not start 4.2 The separator stops 4.3 The separator vibrates 4.4 Noise 4.5 Low outlet flow 4.6 Insufficient separation result 4.7 Some oil is escaping through water outlet 4.8 Oil flows through water outlet only 4.9 No outlet flow either through clean oil outlet or water drain 4.10 Oil leakage through water outlet when...
  • Page 5 Technical data 6.1 Technical data 6.2 Basic size drawing 6.3 Connection list 6.4 Interface description 6.5 Foundation drawing 6.6 Connection diagrams 6.6.1 230 V AC 6.6.2 110 V AC 6.6.3 24 V DC...
  • Page 7 Study instruction manuals and observe the warnings before installation, operation, service and maintenance. Not following the instructions can result in serious accidents. In order to make the information clear only foreseeable conditions have been considered. No warnings are given, therefore, for situations arising from the unintended usage of the machine and its tools.

  • Page 9: Safety Instructions

    Strictly follow the instructions for installation, operation and maintenance. • Ensure that personnel are competent and have sufficient knowledge of maintenance and operation, especially concerning emergency stopping procedures. • Use only Alfa Laval genuine spare parts and the special tools supplied.
  • Page 10 1 Safety Instructions WARNING Disintegration hazards • Use the separator only for the purpose and parameter range specified by Alfa Laval. • If excessive vibrations occur, keep liquid feed on and stop separator. • Welding or heating of parts that rotate can seriously affect material strength.
  • Page 11 1 Safety Instructions Warning signs in the text Pay attention to the safety instructions in this manual. Below are definitions of the three grades of warning signs used in the text where there is a risk for injury to personnel. WARNING Type of hazard This type of safety instruction indicates a...
  • Page 12 ANSI-label for the US market ISO-label for other markets Machine plate Plate placed on the separator base. Text on label: Separator type MIB 303S-13/33 Product number 881176-06-01 Speed max. 7 500 r/min Rotation -----> Supply voltage 230V ~50/60 Hz...

  • Page 13: Separator Basics

    2 Separator Basics Application The use of the separator is restricted to removal of water and solids from gas oil, marine diesel oil and lube oil. The table below shows examples of oils to be treated: Recommended separation Oil type Density at +15 °C Viscosity at +40 °C temperature (°C)

  • Page 14: Conversion Kit

    2.2 Conversion kit 2 Separator Basics Conversion kit If the liquid to clean only contains smaller amounts of water and solids, the purifier bowl can be converted to a clarifier, using the optional conversion kit to replace the purifier parts in bowl, see ‘‘2.5 Changing operation mode”...

  • Page 15: Detailed Description

    (2) are held in place by the lock nut (5). NOTE The lock nut has a conventional right-hand thread contrary to most Alfa Laval separators that have left-hand threaded lock rings. The paring disc (3) is stationary, held by the paring disc knob (1).

  • Page 16: Paring Disc

    2.3 Description of main parts 2 Separator Basics 2.3.3 Paring disc The paring disc serves as a stationary pump wheel mounted in a chamber in the rotating bowl neck. The paring disc dips radial into the rotating liquid ring and pares out the liquid (oil). The paring disc is used as a discharge pump.

  • Page 17: Working Principle

    2 Separator Basics 2.4 Working principle Working principle 2.4.1 Clarifier mode The unseparated oil continuously enters at (A) and flows into the bowl (1). The particles (2) are separated and deposited on the bowl wall. The cleaned oil is forced inwards to the centre of the bowl and up to a paring disc (not illustrated).

  • Page 18: Changing Operation Mode

    2.5 Changing operation mode 2 Separator Basics Changing operation mode When changing operating mode from clarifier to purifier, or vice versa, proceed as follows: 1. Dismantle the separator in the same way as when cleaning the bowl, see 5.4.2 on page 2.
  • Page 19 2 Separator Basics 2.5 Changing operation mode A number of parts have to be replaced in the bowl when changing operation mode. The illustration below shows the differences between a clarifier and purifier bowl insert. The number of bowl discs is also different between the modes. Clarifier bowl insert (fitted as delivered) Purifier bowl insert Bowl bottom (clarifier), no holes...
  • Page 20 2.5 Changing operation mode 2 Separator Basics 6. When fitting the insert, check that the cylindrical pin (1) is not missing in the shaft. Check that the pin enters the guide in the bottom of the insert. 7. Tighten the centre screw. Check that one washer is fitted under the screw.

  • Page 21: Operating Instructions

    3 Operating Instructions Separation mode To learn the correct running strategy, first read the information below carefully before starting the separation process. 1. Decide if the separator will be operated as clarifier or purifier. The difference between them is described in ‘‘2.4 Working principle” on page 17.

  • Page 22: Separation Time

    3.2 Separation time 3 Operating Instructions Separation time Dismantle the separator and measure the thickness (A) of the sludge collected on the bowl shell, see ‘‘5.1 Cleaning” on page 33. The thickness should never exceed 10 mm. Max. recommended cleaning interval is 3 days. A longer interval can result in a sludge cake that is hard and difficult to remove.

  • Page 23: Before Start

    3 Operating Instructions 3.3 Operating routine 3.3.2 Before start • The separator is set up as clarifier when delivered. In case that purifier mode is needed, please convert the bowl as described in chapter ‘‘2.5 Changing operation mode” on page 18. •...

  • Page 24: Start

    3.3 Operating routine 3 Operating Instructions 3.3.3 Start 1. Make sure that the outlet valve for cleaned oil is open. 2. Start the separator (keep the button pressed 3 - 4 seconds). WARNING Disintegration hazard Some vibrations can occur for short periods during the start phase when the separator passes through the critical speed.

  • Page 25: Operation

    3 Operating Instructions 3.3 Operating routine 3.3.4 Operation NOTE Never run the unit longer than 3 days between bowl cleaning. It is important to follow the instructions in ‘‘3.2 Separation time” on page 22. Check the separator for correct operation (temperature, counter pressure and vibration).

  • Page 26: Automatic Stop

    3.3 Operating routine 3 Operating Instructions 2. Stop the separator. When the separator has nearly stopped rotating, the contents of the bowl (approx. 1 litre) will be drained out by gravity at the bottom of the separator. This is the normal draining of the bowl as it stops, both in purifier and clarifier mode.

  • Page 27: Trouble Shooting

    4 Trouble shooting The separator does not start Possible cause Action Safety yoke is not in the correct Position the yoke correctly. position. No power supplied to the separator. Check the mains switch, fuses and supply line. Defective magnetic safety switch Make sure that the switch opens and closes when the safety indicating the position of the safety yoke is moved up and down.

  • Page 28: The Separator Stops

    4.2 The separator stops 4 Trouble shooting The separator stops Possible cause Action The safety yoke has been moved out Reposition the yoke. Running position = vertical. of its position. Overload due to incorrect assembly. Check the bowl assembly. Too high counter pressure. Reduce the counter pressure (40 - 60 kPa is recommended).

  • Page 29: Noise

    4 Trouble shooting 4.4 Noise Noise Possible cause Action Incorrect assembly. Dismantle and assemble correctly. Motor bearings are damaged. Fit new bearings. Vibration dampers are worn. Fit new dampers. Low outlet flow Possible cause Action Too low flow rate of feed. Check the feed line - increase the flow rate.

  • Page 30: Some Oil Is Escaping Through Water Outlet

    4.7 Some oil is escaping through water outlet 4 Trouble shooting Some oil is escaping through water outlet Possible cause Action Too high counter pressure at outlet. Reduce the counter pressure (40 - 60 kPa is recommended). The separator disc stack is clogged. Clean the separator bowl and disc stack.

  • Page 31: No Outlet Flow Either Through Clean Oil Outlet Or Water Drain

    4 Trouble shooting 4.9 No outlet flow either through clean oil outlet or water drain No outlet flow either through clean oil outlet or water drain Possible cause Action No feed. Check the feed line (valves, feed pump, filter etc.). The separator has stopped.
  • Page 32 4.10 Oil leakage through water outlet when separator is not running 4 Trouble shooting...

  • Page 33: Maintenance

    5 Maintenance WARNING Entrapment hazard To avoid accidental start, switch off and lock the power supply before starting any dismantling work. Make sure that rotating parts have come to a complete standstill before starting any dismantling work. Cleaning The separated sludge collected inside the separator bowl must be removed manually.

  • Page 34: Once Per Year

    5.2 Once per year 5 Maintenance Once per year Replace the O-rings with new ones included in the O-ring service kit. Their positions are shown in the Spare Parts Catalogue. Before fitting, lubricate the O-rings with the Silicone grease supplied in the service kit. See ‘‘5.4.3 Replacement of O-rings in purifier bowl”...

  • Page 35: Dismantling - Assembly Instructions

    5 Maintenance 5.4 Dismantling - assembly instructions Dismantling - assembly instructions 5.4.1 Introduction The illustrations on the following pages describe step by step how to dismantle, clean, replace and assemble the various parts of the separator. The illustrations have symbols only to indicate the actions required.

  • Page 36: Cleaning Of Bowl

    5.4 Dismantling - assembly instructions 5 Maintenance 5.4.2 Cleaning of bowl Comments to illustrations on opposite page. Illustration 4: Before dismantling the separator, wait until the rotating parts have come to a complete standstill, which will take up to two minutes. To be sure, open the front cover and check that the rotation of the electric motor shaft has stopped.
  • Page 37 5 Maintenance 5.4 Dismantling - assembly instructions Dismantling See comments on opposite page...
  • Page 38 5.4 Dismantling - assembly instructions 5 Maintenance Comments to illustrations on opposite page. Illustration 16: When fitting the bowl wall, press firmly downwards with both hands to overcome the resistance from the O-ring fitted on the bowl bottom. A “clicking” sound will be heard. Illustration 17: If the level ring (1) and O-ring (2) have been removed, first fit the level ring and then the O-ring...
  • Page 39 5 Maintenance 5.4 Dismantling - assembly instructions Illustration 22: NOTE Always screw home the knob fitted on the connecting housing before tightening the screws shown in illustration 23. Otherwise there is a risk that the pin inside the connecting housing could break.

  • Page 40: Replacement Of O-Rings In Purifier Bowl

    5.4 Dismantling - assembly instructions 5 Maintenance 5.4.3 Replacement of O-rings in purifier bowl How to convert from purifier to clarifier bowl or vice versa is described in point ‘‘2.5 Changing operation mode” on page 18. Comments to illustrations on opposite page.
  • Page 41 5 Maintenance 5.4 Dismantling - assembly instructions First dismantle the separator bowl as described in ‘‘5.4.2 Cleaning of bowl” on page 36. See comments on opposite page.

  • Page 42: Replacement Of O-Rings In Clarifier Bowl

    5.4 Dismantling - assembly instructions 5 Maintenance 5.4.4 Replacement of O-rings in clarifier bowl How to convert from purifier to clarifier bowl or vice versa is described in point ‘‘2.5 Changing operation mode” on page 18. Comments to illustrations on opposite page.
  • Page 43 5 Maintenance 5.4 Dismantling - assembly instructions First dismantle the separator bowl as described in ‘‘5.4.2 Cleaning of bowl” on page 36. See comments on opposite page.

  • Page 44: Replacement Of Motor Bearings

    5.4 Dismantling - assembly instructions 5 Maintenance 5.4.5 Replacement of motor bearings First dismantle the separator bowl as described in ‘‘5.4.2 Cleaning of bowl” on page 36.
  • Page 45 5 Maintenance 5.4 Dismantling - assembly instructions...
  • Page 46 5.4 Dismantling - assembly instructions 5 Maintenance See ‘‘ Assembly” on page 39 for how to assemble the rest of the separator.

  • Page 47: Replacement Of Connection Housing

    5 Maintenance 5.4 Dismantling - assembly instructions 5.4.6 Replacement of connection housing...

  • Page 48: Replacement Of Frequency Converter

    5.4 Dismantling - assembly instructions 5 Maintenance 5.4.7 Replacement of frequency converter NOTE Check that the earth contact between the frequency converter and frame is sufficient.

  • Page 49: Technical Data

    6 Technical data Technical data Alfa Laval ref. 557925, rev. 3 & 562331, rev. 3 Product number 881176-06-01 Separator type MIB 303S-13/33 Application Removal of water and solids from gas oil, marine diesel oil and lube oil. Technical design Solid bowl made of aluminium and plastics.
  • Page 50 6.1 Technical data 6 Technical data Density of sediment / feed, max. 1600 / 1100 kg/m Motor power 0,45 Stopping time with brake 1,7 / 3,0 minutes (min. / max.) Starting time minute (max.) Power consumption 0,2 / 0,4 kW (idling / at max. capacity) Rated current at 24 V DC Rated current at 110 V AC Rated current at 230 V AC...

  • Page 51: Basic Size Drawing

    6 Technical data 6.2 Basic size drawing Basic size drawing Alfa Laval ref. 554367, rev. 2 / 557885, rev. 1 / 557596, rev. 1 All connections to be installed non-loaded and flexible Purifier only (-13) Cable with protection for 24 V DC...

  • Page 52: Connection List

    6.3 Connection list 6 Technical data Connection list Alfa Laval ref. 554542 rev. 3, 557757 rev.1, 557884 rev.1, 562417 rev.1, 562418 rev.1 Description Requirements/limits MIB 303S- 230 VAC 110 VAC 24 VDC 230 VAC 110 VAC Inlet for process liquid (dirty oil) −...

  • Page 53: Interface Description

    6 Technical data 6.4 Interface description Interface description Alfa Laval ref. 557647 rev. 0 General In addition to the Connection list this document describes limitations and conditions for safe control, monitoring and reliable operation. Definitions Ready for start means: −...
  • Page 54 6.4 Interface description 6 Technical data Component description and signal processing Electrical connections 709 − The three phase separator motor is fed from a built in frequency converter which in turn is fed from a single phase power supply. Cover interlocking switch 760 −...

  • Page 55: Foundation Drawing

    6 Technical data 6.5 Foundation drawing Foundation drawing Alfa Laval ref. 554365, rev. 0 Recommended free floor space Recommended thickness of sheet metal is 3 mm Horizontal deviation, max. 3° Service side 1 hole, Ø35 mm 3 holes, Ø7 ±0,2 mm, spaced 120°...

  • Page 56: Connection Diagrams

    6.6 Connection diagrams 6 Technical data Connection diagrams 6.6.1 230 V AC Alfa Laval ref. 554581 rev. 2 A. Separator, frequency converter included B. Starting equipment (not included in all separators) Pump control External level guard Cable Power supply 230 V AC, 50/60 Hz. Max. fuse 10 A...

  • Page 57: 110 V Ac

    6 Technical data 6.6 Connection diagrams 6.6.2 110 V AC Alfa Laval ref. 562879, rev. 0 A. Separator, frequency converter included B. Starting equipment (not included in all separators) Pump control External level guard Cable Power supply 110 V AC, 50/60 Hz. Max. fuse 16 A...
  • Page 58 6.6 Connection diagrams 6 Technical data 6.6.3 24 V DC Alfa Laval ref. 558253, rev. 0 A. Separator, frequency converter included B. Starting equipment (not included in all separators) Interlocking switch External level guard Pump control Start Stop Relay Frequency converter...

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Mib 303s-33

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