IWAKI PUMPS MDG-R, Instruction Manual

Page 1: ...Read this manual before use of product IWAKI Magnetic Drive Gear Pump MDG R2 built in type Instruction Manual ...

Page 2: ...misapplication of the contents of Caution section could lead to personal injury or property damage Types of Symbols Indicates a prohibited action or procedure Inside or near this circle a concrete and practical image of the activity to be avoid ed is depicted Indicates an important action or procedure which must be per formed or carried out without fail Failure to follow the instruc tions herein c...

Page 3: ...mi cals you may experience a serious injury Wear protec tive gear protective mask gloves etc during the pump operation Qualified operators only The pump operator and pump operation supervisor must not allow any operators who have little or no knowledge of the pump to run or operate the pump Pump operators must have a sound knowledge of the pump and its opera tion Specified power only Do not operat...

Page 4: ...electrical shock Please purchase an optional leakage breaker and install in the system Power cable cannot be replaced Never use a damaged or affected power cable Otherwise a fire or an electrical shock may result Handle the power cable carefully as it cannot to be replaced with a new cable The pump unit itself must be replaced in that cir cumstance Limited operating site and storage Do not install...

Page 5: ... the delivered package The Iwaki Magnet Gear Pump comprises a pair of gears driven by a magnet coupling and casing in which the gears are fitted exactly Fig A Liquid introduced from the IN side feeds into the grooves between the teeth of the gears and is transferred to the OUT side by rotation of the gears Fig B Then the liquid is forced out of the grooves between the gear teeth in engagement Fig ...

Page 6: ...G R2RV 115 AC115 0 45 0 45 MDG R2RV 230 AC220 240 0 25 0 26 MDG R2BV 100 1 6 1 9 AC100 0 5 0 5 MDG R2BV 115 AC115 0 45 0 45 MDG R2BV 230 AC220 240 0 25 0 26 MDG R2B 100 AC100 0 5 0 5 MDG R2B 115 AC115 0 45 0 45 MDG R2B 230 AC220 240 0 25 0 26 MDG R2B 24 1 7 0 15 2800 DC24 1 0 1 1 MDG R2RV 24H 1 8 0 3 2000 1 2 MDG R2B 24H 1 7 Note 1 The above performance is based on operation with clean water at 25...

Page 7: ...91 3 6 10 R 202 48 90 106 83 45 1 6 IN OUT ROTATION NAME PLATE G GROUND YELLOW GREEN SOURCE BLUE BROWN LEAD 0 75 L 1000 MDG R2B 115 type MDG R2BV 115 type MDG R2RV 115 type With AC motor MDG R2B 100 type MDG R2BV 100 type MDG R2RV 100 type ...

Page 8: ... 6 10 44 81 161 71 80 75 90 48 1 5 45 80 5 R 600 ROTATION OUT IN NAME PLATE RED BLACK 6 10 44 81 161 71 80 75 90 1 5 45 80 5 R 48 600 G ROTATION OUT IN 48 45 1 6 83 90 106 6 10 44 100 91 3 101 5 202 R LEAD 0 75 L 1000 SOURCE BLUE BROWN GROUND YELLOW GREEN MDG R2B 230 type MDG R2BV 230 type MDG R2RV 230 type With DC motor MDG R2B 24 type MDG R2B 24H type MDG R2RV 24H type ...

Page 9: ... type with AC motor MDG R2RV type with AC motor 0 4 0 3 0 2 0 1 0 61 33 34 66 8 00 50Hz 60Hz 1 0 2 0 Flow rate L min Vacuum kPa abs Discharge press MPa 101 32 0 4 0 3 0 2 0 1 0 61 33 34 66 8 00 50Hz 60Hz 1 0 2 0 Flow rate L min Vacuum kPa abs Discharge press MPa 101 32 ...

Page 10: ... motor MDG R2B 24 with DC motor 0 4 0 3 0 2 0 1 0 61 3 34 7 8 00 1 0 2 0 Flow rate L min Vacuum kPa abs Discharge press MPa 0 1 0 2 0 3 1 0 2 0 0 4 0 101 32 61 33 34 66 8 00 Flow rate L min Vacuum kPa abs Discharge press MPa ...

Page 11: ... 9 MDG R2B 24H with DC motor 0 1 0 2 0 3 1 0 2 0 0 4 0 101 32 61 33 34 66 8 00 Flow rate L min Vacuum kPa abs Discharge press MPa ...

Page 12: ...se the pump by observing the specifications described on the label Pump unit Liquid circulating unit The pump is not self priming type Before operating the pump be sure to fill the pump with liquid Base Be sure to anchor the base onto the floor Suction port Discharge port MDG R2 V type Relief valve is built in Refer to page 20 ...

Page 13: ... 11 8 Name of Parts This figure shows MDG R2 V type 1 31 3 2 4 5 6 7 21 20 23 33 8 11 23 26 27 24 25 29 28 32 17 18 19 13 9 15 10 12 16 34 22 14 30 ...

Page 14: ... FERRITE ADC 12 SUS316 or SUS316L FERRITE GFRPPS SUS316 or SUS316L GFRPPS SUS304 PPS SUS316 PPS SUS316 SUS316 SUS316 CF PTFE PPS CF PTFE PPS SUS316 SUS316 GFRPPS FKM FKM EPDM No Parts Name Q ty Material Remarks Packing C Retaining Spring SUS316 WPA EPDM O Ring O Ring Adjusting Screw Relief Valve Relief ValveSpring Nut Plain Washer Cap Nameplate Screw Screw Screw 21 1 22 23 24 25 26 27 28 29 30 31 ...

Page 15: ...d to circulate in the pump chamber If this happens the temperature will rise rapidly causing abnormal wear seizure etc between contacting parts Handling Instructions The pump structure is not designed to be dust proof or water proof Try not to wet or dampen the motor unit For the prevention of elec tric shock accident be sure to purchase an optional earth leakage breaker and install it in the syst...

Page 16: ...aced When the power cable is destroyed or damaged some times as a result of dropping it on the floor or the like do not operate the pump Otherwise the pump itself may be dam aged Slurry liquid Iron Nickel Cleaning of the pump Do not use benzine alcohol thinner or the like for cleaning the pump These liquids may cause discoloring or peeling off of the coat Handling of a damaged pump Do not operate ...

Page 17: ...suction piping This is not allowed for the B type Priming method In case the pump chamber is wet 10 1 Installation 1 Choose a place where ambient temperature will not exceed 40ºC and ambient humidity of 90 RH Allow sufficient space around the pump for easy access and maintenance Do not install the pump out of outdoors 2 Install the pump in a position lower than the surface of the liquid in the tan...

Page 18: ...ressure gauge 10 2 Piping 1 In order to reduce the friction resistance of liquid the piping should be as short and with as few bends as possible 2 The inlet and outlet joints of the pump should be com pletely sealed with sealing tape etc to prevent them from sucking air If the sealing is incomplete on the suction side in particular air is sucked in and the perfor mance of the pump is low ered Join...

Page 19: ...iring rules 3 Use the power source voltage indicated on the Specifications label 4 The pump is not provided with an ON OFF switch The pump starts operation when power is supplied by connecting the power cable of the pump with the power source 5 Make sure to include a ground wire in the wiring Select a well ventilated place for pump installation The pump must not be allowed to become wet or damp wi...

Page 20: ...te If DC24V motor is locked a fuse built in motor melts In this case the motor should be replaced by new one because the fuse can not be replaced 7 For the MDG R2B_24 R2___24H a This product is not protected against an electromagnetic field Take appropriate measures as necessary b After wiring work check that the system is free from the inductive noise at start up c The drive circuit generates noi...

Page 21: ...e pressure or vacuum Do not open close suction port and discharge port suddenly This may lead to disconnection of mag net coupling so that gears cannot rotate If this happens turn off power supply As motor stops normal coupling will be restored Do not operate pump with discharge valve and or suction valve completely or almost completely closed Set operating pressure to at least 0 1MPa lower than s...

Page 22: ...ocedure described below 1 Loosen the clamp nut 1 with a spanner M4 2 Adjust the pressure for the desired value by turning the set pres sure adjustment screw 2 with a flat head driver Watch the pressure gauge installed on the discharge piping in advance for reaching the target value 3 Fasten the clamp nut 1 tightly with the spanner M4 Be sure to check for liquid leakage after resetting the relief v...

Page 23: ... Motor stops while in opera tion Liquid cannot be pumped up or capacity is insuf ficient Magnet coupling disconnects Problem Cause Countermeasure Plug is out of socket Contact is bad or there is a break in wiring Motor is malfunctioning wire in motor is broken Earth leakage breaker is acti vated by leak Breaker is activated due to lack in power capacity Dry running without liquid on suction side F...

Page 24: ...rge pressures are at nor mal levels If pump does not function normally abnormal noise or vibration tends to be gener ated Base on which pump is mounted sometimes becomes resonant to increase noise If separation of pump from the base decreases noise anti vibration measure such as attaching anti vibration rub ber mounts to pump should be taken Clamp connections more tightly If many air bubbles are f...

Page 25: ...ed at hand constantly For details contact your dealer No Parts Parts cord Q ty Replacement time 9 10 13 14 15 16 18 23 1 1 1 1 1 1 1 2 Drive gear Driven gear Front bearing Rear bearing Front plate Rear plate Gasket A O ring 5000 hours Every maintenance interval MDG0523 MDG0524 MDG0529 MDG0530 MDG0531 MDG0532 MDG0533 MDG0536 Disassembling and Assembling ...

Page 26: ...the drive gear 9 Store the removed driven magnet in a place free of steel powder or dust 8 Disassemble the rear bearing 14 rear plate 16 drive gear 9 driven gear 10 gear case 11 parallel pins 12 front plate 15 and front bearing 13 in the order described Handle these parts carefully so as not to cause scratches on the surfaces Store them in a dust free place after cleaning them Assembling 1 Attach ...

Page 27: ...the gasket A 18 and the pump head 17 by tightening the 4 screws with P W and S W 32 In this step be careful with the positioning of the bracket gasket A and pump head In the case of MDG R2 V type only make sure that the adjusting screw 25 and relief valve spring 27 are inserted in position See the figure on the left How to mount parallel pins When you mount parallel pin on front bearing face the V...

Page 28: ...with P W S W 32 on pump head 17 and tighten them Note Fastening torque of 0 8 N m Screws tightening order 9 Attach the assembled pump unit on the motor 1 and fasten the three screws 33 1 2 3 4 Pump head Screw Caution When you mount pump head do not tighten screws with more than specified tightening torque Evenly tighten screws 32 in diagonal order ...

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