Walchem LK Series, Instruction Manual

Page 1: ...LK Series Metering Pump Instruction Manual Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 WEB www walchem com www iwakiamerica com...

Page 2: ...ication to be free from defects in workmanship and material for a period of one year from date of delivery from the factory or authorized distributor under normal use and service and otherwise when su...

Page 3: ...to ensure the optimum performance safety and service of your pump IMPORTANT INSTRUCTIONS 1 1 Operating Principle 3 2 Model Identification Guide 4 3 Specifications and Outer Dimensions 4 4 Names of Par...

Page 4: ...et end parts always wear protective goggles masks etc Prevent death or injury from a falling pump Make sure the rope or chain used for lifting the pump is not accidentally cut or disconnected during i...

Page 5: ...an appropriate container Observe the laws and regulations related to the application handling and processing of hazardous substances Caution Always read and observe the following instructions to prev...

Page 6: ...cating motion is transmitted to the diaphragm directly connected with the shaft changing the volume inside the pump chamber The variation in volume inside the pump chamber and the functioning of the v...

Page 7: ...D G 230 460 60 Hz 3 ph 1 3 HP 1725 RPM Inverter Duty Motor TENV 42C 5 Liquid End Code Refer to the table below Material symbol VC VH VS TC S6 Part Pump head PVC PVC PVC PVDF 316 SS Valve ball CE HC HC...

Page 8: ...306 3 82 97 4 06 103 4 61 117 NPT 4 x 0 35 9 LKN45 47 VC VH VS 11 06 281 12 01 305 3 90 99 4 06 103 4 69 119 LKN47VS 11 06 281 10 83 275 3 90 99 3 46 88 4 69 119 1 NPT LKN55 57 VC VH VS 11 77 299 12 4...

Page 9: ...K LKN32 S6 10 91 277 7 80 198 3 82 97 1 93 49 4 61 117 NPT 4 x 0 35 9 LKN45 47 S6 11 14 283 11 69 297 3 98 101 3 86 98 4 76 121 LKN55 57 S6 11 61 295 14 53 369 4 37 111 5 31 135 5 16 131 1 NPT F 3 35...

Page 10: ...100mm E 6 50 165mm F c 3 35 85mm 4 92 125mm L 0 79 20mm A 2 00 51mm Model L A C E F J K LKN32 TC 10 91 277 12 05 306 3 82 97 4 06 103 4 61 117 NPT 4 x 0 35 9 LKN45 47 TC 11 06 281 12 95 329 3 90 99 4...

Page 11: ...L0489 SS304 5 Valve Gasket 2 L0068 PTFE L0068 PTFE L0068 PTFE 6 Adapter 2 L0072 PVC L0072 PVC L0072 PVC 7 O ring 2 L0074 FKM L0073 EPDM L0073 EPDM 8 O ring 2 L0016 FKM L0015 EPDM L0015 EPDM L0506 PVC...

Page 12: ...VC L0095 PVC L0096 SS304 5 Valve Gasket 2 L0097 PTFE L0097 PTFE L0097 PTFE 7 O ring 2 L0103 FKM L0102 EPDM L0102 EPDM No Part Qty Part No Material Notes 20 Hex head bolt 8 L1166 SS 22 Plate washer 8 L...

Page 13: ...VC L0152 PVC L0152 PVC 4 Valve seat 2 L0153 PVC L0153 PVC L0154 SS304 5 Valve Gasket 2 L0155 PTFE L0155 PTFE L0155 PTFE 7 O ring 2 L0161 FKM L0160 EPDM L0160 EPDM No Part Qty Part No Material 20 Hex h...

Page 14: ...ll 2 L0062 Hastelloy C 3 Valve guide 2 L1205 SS316 4 Valve seat 2 L1206 SS316 5 Valve gasket A 4 L0244 PTFE 6 Valve gasket B 2 L0245 PTFE 20 Hex head bolt 6 L0246 SS 21 Split washer 6 EH2012 SS 22 Pla...

Page 15: ...y C 3 Valve guide 2 L0826 L1213 SS316 4 Valve seat 2 L0827 L1214 SS316 5 Valve Gasket 6 L0257 L0269 PTFE 20 Bolt w split washer 8 L1167 L1167 SS 22 Plate washer 8 L1610 L1610 SS 30 Diaphragm 1 L0109 L...

Page 16: ...0332 PVDF 4 Valve seat 2 L0066 PVDF 5 Valve Gasket 2 L0068 PTFE 6 Adapter 2 L0335 PVDF 7 O ring 2 L0074 FKM 8 O ring 2 L0016 FKM 20 Bolt 6 L0246 SS 21 Split washer 6 EH2012 SS 22 Plate washer 6 EH2011...

Page 17: ...7 PVDF 4 Valve seat 2 L0348 PVDF 5 Valve Gasket 2 L0097 PTFE 6 Adapter 2 L0350 PVDF 7 O ring 2 L0103 FKM 8 O ring 2 L0016 FKM 9 Nut 2 L1539 PVDF 20 Bolt w split washer 8 L1166 SS304 22 Plate washer 8...

Page 18: ...51 Ceramic 3 Valve guide 2 L0363 PVDF 4 Valve seat 2 L0364 PVDF 5 Valve Gasket 2 L0155 PTFE 7 O ring 2 L0161 FKM 20 Bolt w split washer 8 L1168 SS304 22 Plate washer 8 L1610 SS 29 Reinforcing plate 1...

Page 19: ...scharge Port Pump unit Liquid end Suction Port Specification Nameplate Model number and specifications are indicated on the nameplate Operate the pump within the limits of the specifications Stroke Le...

Page 20: ...temperature falls below 0 C where corrosive gas or explosive gas may be present exposed to splashing water where the ambient temperature is 40 C or above where the humidity is excessively high Permiss...

Page 21: ...n Liquid temperature range Material symbol VC VH VS 0 50 C Material symbol S6 TC 0 80 C Ambient temperature range 0 40 C Humidity range 35 85 RH 7 Installation 1 Installation position Install the pump...

Page 22: ...round the pump for easy and efficient maintenance work 8 Piping P PG Back Pressure Valve Discharge Valve Air Vent Valve flushing valve Expansion joint Expansion joint Drain Valve flushing valve Suctio...

Page 23: ...ump inlet 3 The suction piping should be as short as possible Excessive length may lead to flow restriction cavitation and damage to the pump 4 Air ingress from the joints in the piping system may cau...

Page 24: ...e distance from the pump 10 Operating Instructions 1 Never operate the pump with the suction and discharge side valve closed Otherwise the inside of the pump or the piping will be damaged 2 In the eve...

Page 25: ...Run the motor instantaneously to check for correct direction of motor rotation The motor should run in the direction indicated with the arrow on the pump If the direction is reversed rewire the motor...

Page 26: ...mperage does not exceed the rated value and that no abnormality is found Metering and Calibration 1 Operate the pump using the actual liquid and installation conditions 2 Setting the stroke length at...

Page 27: ...Discharge pressure does not increase 1 2 4 8 10 11 12 F Pump will not prime 1 2 4 5 6 7 8 12 G Liquid leaks 5 6 H Motor does not run 15 16 17 18 19 I Motor draws excessive amperage 13 15 16 17 19 J E...

Page 28: ...ation 2 Check the level of the liquid in the solution supply tank 3 Check the pump and piping for leakages 4 Check the drive unit for oil loss and leakage 5 Compare the discharge pressure and electric...

Page 29: ...every 6 months if the usage is fairly light The life of the diaphragm depends on the characteristics pressure temperature etc of the liquid being pumped If any deformation or crack is found the diaphr...

Page 30: ...pplication will determine pump life 14 Disassembly and Assembly Refer to exploded view of the model corresponding to your pump The views are shown in Section 4 Exploded View and Parts List Caution Bef...

Page 31: ...teel the valve assembly can be taken out by loosening the setting flange 54 or the nuts 81 2 Check the valve and valve seat If they are damaged or worn replace with a new ones It is highly recommended...

Page 32: ...ragm 30 Assembly The pump should be assembled by carrying out the steps of disassembly in reverse Pay special attention to the following points Valve 1 Replacement of o ring and gasket Replace the o r...

Page 33: ...ach the head when the diaphragm is at bottom dead center Premature diaphragm failure may occur if this step is not observed Do not touch any moving parts during operation 2 Fit the pump head 1 to the...

Page 34: ...FIVE BOYNTON ROAD HOPPING BROOK PARK HOLLISTON MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 Web www walchem com...