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Alfa Laval LKH-112, Instruction Manual

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Alfa Laval LKH-112 Instruction Manual Download Page 19

4 Operation

Study the instructions carefully and pay special attention to the warnings!

Step 6
Control:
Reduce the capacity and the power consumption by means of:

-

Throttling the pressure side of the pump.

-

Reducing the impeller diameter.

-

Reducing the speed of the motor.

* Throttling!

*

3003-0105

19

Summary of Contents for LKH-112

Page 1: ...3003 0004 100002859 EN8 2022 01 Original manual Instruction Manual LKH Multi Stage Pump...

Page 2: ......

Page 3: ...l 17 4 2 Trouble shooting 20 4 3 Recommended cleaning 21 5 Maintenance 23 5 1 General maintenance 23 5 2 Cleaning Procedure 26 5 3 Dismantling of pump shaft seals 27 5 4 Assembly of Pump Assembly of S...

Page 4: ...112 LKH 112 P LKH 113 LKH 113 P LKH 114 LKH 114 P LKH 122 P LKH 123 P LKH 124 P Type From serial number 10 000 to 1 000 000 is in conformity with the following directive with amendments Machinery Dir...

Page 5: ...fety section first Hereafter the User can skip to the relevant section for the task to be carried out or for the information needed This is the complete manual for the supplied product Skills for pers...

Page 6: ...ther important information are emphasized in this manual Warnings are emphasized by means of special signs Always read the manual before using the pump 2 2 Warning signs General warning Dangerous elec...

Page 7: ...l data thoroughly See chapter 6 Technical data Pump without impeller screw Always remove the impeller before checking the direction of rotation Never start the pump if the impeller is fitted and the p...

Page 8: ...t the pump in its upright position Always ensure that the unit is securely fixed during transportation Always use the original packaging or similar during transportation Always use suitable transport...

Page 9: ...s use a lifting crane when handling the pump CAUTION Alfa Laval cannot be held responsible for incorrect unpacking WARNING Be aware that certain pump configurations can tilt and thereby cause injuries...

Page 10: ...sistance LKH 110 and the LKH 120P is avaliable in the following sizes LKH 112 113 114 and LKH122 P 123 P 124 P The instruction manual is part of the delivery Study the instructions carefully The large...

Page 11: ...onally or unintentionally stopped If back flow can cause any hazardous situations precautions must be taken e g check the valve to be installed in the system preventing hazardous situations from arisi...

Page 12: ...can be checked by observing the direction of rotation of the motor fan See the indication label on the pump Step 3 Check that the flow direction is correct O Outlet I Inlet 3003 0089 I O 9 Step 4 1 E...

Page 13: ...ation label on the pump Step 5 Avoid stressing the pump Piping system must be self supported Pay special attention to Vibrations Thermal expansion of the tubes Excessive welding Overloading of the pip...

Page 14: ...direction of rotation of the motor fan See the indication label on the pump Centre of inlet and outlet to be aligned with centre of piping system 3003 0095 No gaps between connections on pump inlet a...

Page 15: ...tting a drip tray underneath the slot to collect the leakage Step 7 Never start in the wrong direction of rotation with liquid in the pump Always ensure the adaptor shield and motor fan guard are pres...

Page 16: ...he machine are replaced All metal parts should be sent for material recycling Worn out or defective electronic parts should be sent to a licensed handler for material recycling Oil and all non metal w...

Page 17: ...Alfa Laval cannot be held responsible for incorrect operation control Never touch the pump or the pipelines when pumping hot liquids or when sterilising Step 2 Never touch the pump or the pipelines wh...

Page 18: ...ft seal must not run dry CAUTION Never throttle the inlet side Do not allow to run dry 9 3003 0103 Step 5 Flushed shaft seal 1 Connect the inlet of the flushing liquid correctly 2 Regulate the water s...

Page 19: ...and pay special attention to the warnings Step 6 Control Reduce the capacity and the power consumption by means of Throttling the pressure side of the pump Reducing the impeller diameter Reducing the...

Page 20: ...gher counter pressure throttling Lamination of precipitates from the liquid Frequent cleaning Damage Low inlet pressure Increase the inlet pressure Pressure reduction sometimes to zero High liquid tem...

Page 21: ...ways use protective goggles Step 2 Never touch the pump or the pipelines when sterilizing 3003 0101 Step 3 Examples of cleaning agents Use clean water free from chlorides 1 1 by weight NaOH at 70 C 15...

Page 22: ...l with clean water after using a cleaning agent NOTE The cleaning agents must be stored disposed of in accordance with current regulations directives NOTE If pumps are sterilised using steam standard...

Page 23: ...lways disconnect the power supply when servicing the pump NOTE All scrap must be stored discharged in accordance with current rules directives Step 2 Never service the pump when it is hot Never servic...

Page 24: ...seals in stock See separate motor instructions Step 4 Recommended spare parts Order Service Kits from Service kits list See chapter 7 Parts list and service kits Ordering spare parts Contact your loc...

Page 25: ...ing Quad O rings Replace when replacing the shaft seal Maintenance after leakage leakage normally starts slowly Replace at the end of the day Stationary and rotating seal ring Quad O rings Replace whe...

Page 26: ...ft for 5 minutes in COP tank with 2 caustic wash 3 Scrub the blind tapped impeller screw hole vigorously by plunging a clean 1 2 diameter sanitary bristle pipe brush in and out of the hole for two min...

Page 27: ...section Handle scrap correctly Relates to the shaft seal 5 3 Dismantling of pump shaft seals Step 1 Remove the cap nuts 29 washer 30 pump cover 49 and O ring 32 3003 0107 Step 2 Flushed shaft seal Un...

Page 28: ...5 Counterhold with a screwdriver 3003 0110 Step 5 1 Remove intermediate casing 46 3 or 4 stage and or pump casing 42 2 Remove impeller 45 and O rings 41 in between the stages 3003 0111 Step 6 Remove g...

Page 29: ...art of the seal from the impeller 3003 0115 Step 9 Remove rotating seal ring 36 the quad rings O rings 37 39 and the supporting 38a from rotating seal housing 38 3003 0116 36 37 38a 38 39 Step 10 1 Re...

Page 30: ...ng 26 2 Remove lip seal 28 and O ring 27 from the seal housing 3 Remove seal ring 23 from stub shaft 11 4 Remove O ring 22 from the seal ring 3003 0119 Step 13 1 Remove scroud 2 2 Remove nuts 7 washer...

Page 31: ...p 1 1 Fit the compression rings 9 13 washers 15a and the screws 15 on stub shaft 11 2 Fit the stub shaft on the motor shaft 3 Check the clearance between the end of the stub shaft and the motor flange...

Page 32: ...1 Assemble the rotating part of the shaft seal 2 Fit the seal part and the space ring on impeller 40 CAUTION Ensure that the driver in the rotating seal housing enters the notch in the rotating seal...

Page 33: ...1 lbf ft 3003 0129 Step 8 1 Fit O ring 33 on stationary seal ring 34 2 Press the stationary seal ring in back plate 31 3003 0130 Step 9 Flushed shaft seal 1 Fit lip seal 28 in seal housing 26 2 Fit O...

Page 34: ...Fit O ring 41 in impeller 45 Fit impeller 45 on shaft 11 2 Fit intermediatecasing 46 3 Fit O ring 43 on intermediate casing 46 Fit guide vane 44 4 Fit O ring 32 on guide vanes 44 5 Go to Step 14 3003...

Page 35: ...o clock The rest to follow in random order Torque values from Technical data section 6 3 are to be used 4 NOTE Tighten impeller screw with a socket wrench through the inlet 5 NOTE Rotate the pump shaf...

Page 36: ...and the screws 15 on stub shaft 11 2 Fit the stub shaft on the motor shaft 3 Check the clearance between the end of the stub shaft and the motor flange 10 20 mm 0 394 0 787 inch 3003 0123 Step 2 1 Ti...

Page 37: ...ng 27 in the seal housing 3 Fit the housing on back plate 31 and tighten the screws 24 4 Fit seal ring 23 with O ring 22 on stub shaft 11 3003 0131 Step 6 Fit back plate 31 washers 21 and nuts 20 3003...

Page 38: ...P 1 Fit pump casing 42 on back plate 31 2 Fit O ring 43 on casing Fit guide vanes 44 3 Fit O ring 32 on guide vanes 44 4 Go to Step 12 3003 0140 Step 10 LKH 123 P 1 Fit O ring 41 in impeller 45 Fit im...

Page 39: ...12 o clock then 3 9 o clock and finally 6 o clock The rest to follow in random order Torque values from Technical data section 6 3 are to be used 4 NOTE Tighten impeller screw 47 with a socket wrench...

Page 40: ...ate the rubber seals before fitting them Relates to the shaft seal Step 15 1 Fit shroud 2 2 Fit safety guard 17 and screw 16 3003 0138 Step 16 Flushed shaft seal Fit the tubes 25 on seal housing 26 If...

Page 41: ...r LKH 112 10 10 10 10 LKH 113 10 10 10 10 LKH 114 10 10 10 10 LKH 112 P N A 20 N A 15 LKH 113 P N A 20 N A 20 LKH 114 P N A 20 N A 20 LKH 122 P 10 30 N A 30 LKH 123 P 10 30 N A 30 LKH 124 P N A 25 N A...

Page 42: ...tandard Blasted Shaft seal Seal types Single internal or flushed seal Max temperature flush media 70 C Max water pressure flushed seal Normal atmosphere max 1bar 14 5 psi Water consumption flushed sea...

Page 43: ...n intervals see motor name plate For further information contact your local Alfa Laval Technical Support Warning Polyurea based used on e g LKH85 motors must not be mixed with Lithium based grease or...

Page 44: ...5 166 220 113 80 56 118 118 158 169 223 114 121 121 163 174 228 Weight can vary depending of configuration Weihgt is only to be seen as a reference value during handling transporting and packaging Pum...

Page 45: ...82 MR 200 81 MR 300 82 GM 54 FM OS 61 The above LKH noise levels are the same for LKHPF LKHI LKH UltraPure LKH Evap LKHex The above SolidC noise levels are the same for SolidC UltraPure The noise meas...

Page 46: ...7 Parts list and service kits Relubrication interval 50 Hz 3000 rpm Relubrication interval 60 Hz 3600 rpm Vendor quantity in Drive End quantity in Non Drive End 3003 0144 3003 0051 46...

Page 47: ...123 LKH 114 124 2 3 4 6 7 8 1 58 57 56 53 54 55 51 50 52 9 11 10 12 13 14 15a 15 59 22 23 24 25 26 28 27 16 17 17 33 34 35 36 33 37 38a 38 39 20 21 18 19 29 30 31 32 40 41 42 43 44 32 45 41 47 49 48 F...

Page 48: ...6 Washer 31 1 Back plate std blasted 32 2 O ring 40 1 Impeller back std blasted 41 2 O ring 42 Pump casing 43 1 O ring 44 1 Guide vanes blasted 45 1 Impeller std blasted 46 1 Intermediate casing blast...

Page 49: ...KH 113 123 LKH 114 124 2 3 4 6 7 8 1 58 57 56 53 54 55 51 50 52 9 11 10 12 13 14 15a 15 59 22 23 24 25 26 28 27 16 17 17 33 34 35 36 33 37 38a 38 39 20 21 18 19 29 30 31 32 40 41 42 43 44 32 45 41 47...

Page 50: ...n 9 1 Compression ring 10 1 Connex pin 11 1 Shaft 13 1 Compression ring 14 1 Retaining ring 15 6 Screw 15a 6 Washer 16 1 Screw 17 1 Safety guard set 18 1 Adaptor 19 4 Screw for adaptor 50 4 Nut 51 4 S...

Page 51: ...2 LKH 113 123 LKH 114 124 2 3 4 6 7 8 1 58 57 56 53 54 55 51 50 52 9 11 10 12 13 14 15a 15 59 22 23 24 25 26 28 27 16 17 17 33 34 35 36 33 37 38a 38 39 20 21 18 19 29 30 31 32 40 41 42 43 44 32 45 41...

Page 52: ...vice kit C SIC LKH 114 LKH 114P 9611922108 9611922109 a Service kit C SIC LKH 122 9611922409 9611922410 a Service kit C SIC LKH 123 9611922934 9611922935 a Service kit C SIC LKH 124 9611922679 9611922...

Page 53: ...vice kit SIC SIC LKH 114 LKH 114P 9611922670 9611922671 a Service kit SIC SIC LKH 122 9611922676 9611922677 a Service kit SIC SIC LKH 123 9611922682 9611922683 a Service kit SIC SIC LKH 124 9611922688...

Page 54: ...s the responsibility of the user of this document to comply with all applicable intellectual property laws Without limiting any rights related to this document no part of this document may be copied r...

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