Masdaf NM Series Operating Manual

End suction horizontal shaft single stage centrifugal pumps

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End Suction Horizontal

Shaft Single Stage

Centrifugal Pumps

NM, NMM, NMP, EnduroPro Series

Operating Manual 2024

MDKBK202024

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Summary of Contents for Masdaf NM Series

Page 1 End Suction Horizontal Shaft Single Stage Centrifugal Pumps NM, NMM, NMP, EnduroPro Series Operating Manual 2024 MDKBK202024...
Page 2 masdaf.com...
Page 4 TABLE OF CONTENTS Page No Introduction 1. Important Safety Precautions 2. General 2.1. Definition of Pump and Usage Areas 2.2. Performance Information 2.3. Warranty Conditions 2.4. Test 2.5. Pressure Limit 3. Safe Operating Conditions 3.1. Training of Personnel 3.2. Hazardous Conditions That May Occur When One does not Comply With the Safety Instructions 3.3.
Page 5 7. Commissioning, Start up and Operating 7.1. Preparations Before Start up 7.2. Checking The Direction of Rotation 7.3. Start up Procedure 7.4. Shut Down Procedure 8. Maintenance 8.1. The Checks During the Operation 8.2. Service 8.3. Spare Parts 9. Noise Level and Vibration 9.1. Expected Noıse Values 10. Disassembly, Repair and Reassembly 10.1. Disassembly 10.2. Reassembly 10.3. Coupling Guard Assembly 11. Possible Failures, Causes, Solutions 12. Tightening Torques 13. Forces And Moments at The Pump Flanges 14. Sample Plumbing 15. Sectional Drawings and Part Lists 16. Exploded Views and Part Lists 17. MEI Values Table...
Page 6 These operating and maintenance instructions contain MASDAF MAKINA SANAYI A.Ş.`s suggestions. The special operating and maintenance information of the plumbing that a pump is fitted to is not considered in these instructions. This information must be given by the plumbing constructors only. Please refer to instructions of plumbing constructors. • • Please pay attention to the warnings in this manual and ensure that it is read before the installation- start up process. MASDAF MAKINA SANAYI A.Ş. is not responsible for the accidents resulting from negligence. • If you cannot find an answer to your questions in this manual, it is suggested that you contact MASDAF MAKINA SANAYI A.Ş. Please inform us about the rated value and especially the serial number of the pump when you get in contact for help. • The safety instructions in this manual cover the current national accident protection regulations.
Page 7 Mount the coupling guard and belting before starting-up the pump CAUTION All the electrical and electronic applications must be performed by authorized person conforming EN60204-1 and /or domestic Please contact MASDAF MAKINA SANAYI A.Ş. for instructions. liquids that have different chemical and physical Protect the electrical equipment and motor specifications. against overloading If flammable and explosive liquids are...
Page 8 For pumping liquids containing long fibers (hair, whose densities and viscosities are different from thread, etc.), small solid particles and having those of water, please consult with MASDAF a certain rate gaseous or air. (X Type Vorteks MAKINA SANAYI A.Ş. since the performance curves Impellers) vary with density and viscosity For pumping liquids containing up to certain size sludge and solid particles but not containing fiber, gaseous or air. (D Type Double Vane Impellers)
Page 9 2.5. Pressure Limit CAUTION Untrained personnel and unwillingness to comply with safety instructions may be risky for both machine and environment. MASDAF MAKINA Pressure at the discharge flange must not exceed SANAYI A.Ş. is not responsible for this kind of 10 Bar. A special order is necessary for applications damages. with higher pressures. 3.2. Hazardous Conditions That May Occur When One does not Comply With...
Page 10 Spare parts and accessories designed for handling large solid particles. Solid certified by the manufacturer are important for particles that can pass through the impeller, can the safe operation of the system. be easily handled with the volute casing. Notice: MASDAF MAKINA SANAYI A.Ş. is not 4.1.2. Auxiliary Fittings responsible from the usage of improper spare parts. Please refer to the technical drawing of the pump for necessary auxiliary fittings.
Page 11 X Type Vorteks Impellers one 3300 type and one 6300 or NU 300 type rolling bearing are used. In order to prevent the In this type of impellers, liquid transfer is provided leakage flow into the bearing housing, deflectors by vortex movement in front of impeller. These are provided in front of the bearing covers. type of impellers are suiteble for pumping liquids NMM and NMP type monoblock pumps do not containing long fibers (hair, thread, etc.), small solid...
Page 12 4.2. Construction of Pump Group CAUTION 4.2.1. Drive Current general lifting safety instructions must be TEFC (Totally Enclosed Fan Cooled) 3 phase, applied. Please use a suspension system shown in figure while you are carrying and lifting the pump squirrel caged, in accordance to DIN 42673, IM unit. The suspension rings may be broken because 1001B3 type electrical motor which complies with DIN IEC and VDE is used to drive the pump in of the excessive load and may result in adamage of the pump. Prefer fabric cable for suspension. proper speed and power. Specifications of electrical motor;...
Page 13 5.2. Storage ventilation should be provided in order to remove the heat dissipated to the environment and supply fresh air. 6.2. Type of Connection Please keep the unit clean, dry and closed area during storage Type of connection depends on the design type and the size of the pump and the motor, as well If the pump is out of use for a long time, please as the local installation conditions. Foot-mounted consider the instructions below.
Page 14 6.4.2. Method of Coupling Alignment In order to make the alignment of the coupling, it is required to have at least two pieces of about 10 cm tall, smooth-edged metal parts (e.g. a steel ruler or a gauge stick) and one precision calipers. (Figure 3) (For more precision alignments, special apparatus can be used). Coupling misalignments in general are of two kinds: Figure 2: A Typical Concrete Foundation Paralel Axis Misalignment (Figure 4-Figure 6) In order to control parallel axis misalignment, a 6.3.4.
Page 15 Install the coupling guard only when the alignment of the coupling is checked. For centrifugal pumps, coupling alignment tolerances are critical to ensuring proper alignment. Coupling alignment tolerances can vary depending on a variety of factors, including coupling diameter, Figure 4: Paralel Axis Misalignment in Vertical Plane operating speeds, and the accuracy required by the and Its Correction application. In general, coupling alignment tolerances are determined by the following parameters: Axial Tolerance (Axis Misalignment): The amount of axial misalignment between the axes.
Page 16 6.4.3. Pump and Motor Mounting • Avoid piping system loads on pump installing flexible components (Coupling) (compensator) to suction and discharge of the pump. If the coupling of the pump group is to be • By mounting flexible supporting items, take mounted on site, the following procedure should into consideration the fact that these items be followed. may elongate under the pressure. Coat the shaft tip of the pump and the motor •...
Page 17 6.5.3. Specification of Work after to avoid the undesired substances (weld crust, weld slag, sand, stone, wood piece etc.) Installation of Piping and Piping System get into the pump. Do not take off this gasket until the installation is completed. Suction line (top wiew) • Start the installation of piping from the pump side. Do the necessary assembling and welding of the parts in a successive order. Suction flange • In these operations, do not neglect to put the necessary supports in their respected locations.
Page 18 7.1. Preparations Before Start Up 6.6.1. Motor Connection Diagram Motors requiring high moments at start up shall OIL CHECK: In standard manufacturing, the pumps not be connected star-delta are provided with self-greased rolling bearings Frequency controlled motors, require high requiring no servicing in life long. Therefore, it is not moment at start up and have to be cooled necessary to check the oil.
Page 19 to time during its operation, the water inside slowly. Continue opening the valve until you the pump may endanger the pump by getting read the amperage on the electrical panel warmed up. In such cases, a minimum flow • One should always check the labels which show the direction of rotation and the valve must be connected to the pump exit. direction of fluid flow. If you dismount the CAUTION coupling protection to monitor the direction of rotation, do not restart the engine before...
Page 20 • The instructions in Safety Precautions must Recommended oil change periods: be executed during maintenance and repair Speed [rpm] Change Period • Continuous monitoring and maintenance will increase the engine’s and pump’s lives. 3000 1500 working hours 1500 2500 working hours The instructions below should be applied. 1000 4000 working hours 8.1. The Checks During the Operation 8.1.1. Component Check • Pump must never be operated without water. • Pump must not be operated for a long CAUTION time with the discharge valve closed (zero capacity).
Page 21 8.1.3.2. Mechanical Seal 8.3. Spare Parts Mechanical Seals are absolutely leak tight and The spare parts of NM type pumps are guaranteed needs less maintenance than soft packing. for 10 years by MASDAF MAKINA SANAYI A.Ş. In your spare parts requests, please indicate the Mechanical seal; below listed values that are indicated on your Provides leak proof operation in heavy pump’s label.
Page 22 9.1. Expected Noise Values If you wish to keep spare parts in store, depending on the number of same type of pumps, for two Measurement conditions: operation years, the quantities which are listed in the table below are recommended. • The distance between the measure point The Number of Equivalent Pumps and the pump : 1m in the Installation Component Name • Operation : Without Cavitation • Motor : IEC Standard Motor • Tolerance : ±3 dB Shaft (Key included) (quantity) Sound Pressure Level (dB) * İmpeller (quantity)
Page 23 10. DISASSEMBLY, REPAIRAND • Thanks to “Back Pull Out Design”; the impeller, shaft and other rotating parts REASSEMBLY being removable no need to disconnect the suction and delivery pipes. • If to take out the complete pump is necessary, disconnect pump from the driver, Before starting work on the pump set, make sure suction and discharge pipes and detach the it is disconnected from the mainsand can not be baseplate.
Page 24 10.2. Reassembly • Unscrew the nuts bearing housing to the stuffing box. • Reassembly proceeds in reverse sequence to disassembly as described in section 10.1. You may find the attached drawings useful. • Coat the seats and screw connections with graphite, silicon or similar slippery substance before reassembly. If you can not find any of the above you may use oil instead (except the pumps for drinking water).
Page 25 10.3. Coupling Guard Assembly • On pumps with mechanical seal is used, tighten mechanical seal cover; on pumps with packing is used, tighten the glen nut. • Now reassembly of the rotor group is completed. • Finally mount rotor assembly to the volute casing. (In the repair shop or on site.) • Make sure the gaskets and o-rings are evenly placed without sliding and not damaged or not squeezed at all.
Page 26 11. POSSIBLE FAILURES, CAUSES, SOLUTIONS Possible failures and solution strategies are listed in the table below. Please apply to the Customers’ Service Department of our company when a generic solution is not found to your problem. While the failures are repaired the pump must always be dry and un-pressurized. POSSIBLE FAILURE CAUSES SOLUTIONS Discharge head too high. Readjust the operating point. See if there is any undesired material inside the Very high counter pressure. pipe. The pump delivers insufficient Pump and/or pipe cannot discharge air, cannot suck. Vent completely the pump and the pipe. capacity Occurrence of air pockets inside the pipe.
Page 27 POSSIBLE FAILURE CAUSES SOLUTIONS Pump and/or pipe can neither discharge, nor aspirate air. Bleed completely the pump and the pipe. Excessive increase in pump temperature Too low capacity. Open more the valve. Pump and/or pipe can neither discharge, nor aspirate air. Bleed completely the pump and the pipe. NPSH is too low. Increase the liquid level. Internal components of the pump are worn out. Replace the worn-out components.
Page 28 12. TIGHTENING TORQUES TIGHTENINGTORQUEMAX (Nm) THREAD PropertyClasses DIAMETER 10.9 1050 1100 1550 1450 2100 1970 2770 2530 3560 Table 4: Tightening Torques Table...
Page 29 13. FORCES AND MOMENTS AT THE PUMP FLANGES All of the applied load sif not reached the maximum allowable value, to provide that the following additional conditions, one of these loads may exceed the normal limit: • Any component of a force or a moment, must be limited1.4times of the maximum allowable value, • The actual force sand moments acting on each flange, should provide the following formula: ∑|F | actual ∑|M | actual ≤ 2 ∑|F | maximum allowable ∑|F | maximum allowable ∑| F | ∑| M | , arearithmetic sum of the loads for each flange at the pump level, without In here, regard of the algebraic signs of the actual and maximum allowable values.
Page 30 FORCES MOMENTS DN Flange Suction Flange Discharge Flange Suction Flange Discharge Flange PUMP TYPE NM 32-160 NM 32-200 NM 32-250 NM 40-160 NM 40-200 NM 40-250 NM 50-160 NM 50-200 NM 50-250 NM 50-315 NM 65-160 NM 65-200 NM 65-250 NM 65-315 NM 65-400 NM 80-160 NM 80-200 1000 1117 NM 80-250 NM 80-315 NM 80-400 NM 100-200 NM 100-250 1183 1067 1317 1117 1000...
Page 31 Forces at the pump flanges were calculated according toTS EN ISO 5199 standard. The calculations are valid for the materials of cast iron and bronze. Forces and moments at the flanges that made of stainless material will be approximately twice as moments in the table. FORCES MOMENTS DN Flange Suction Flange Discharge Flange Suction Flange Discharge Flange PUMP TYPE NMM 32-160 NMM 32-200 NMM 32-250 NMM 40-160 NMM 40-200 NMM 40-250 NMM 50-160 NMM 50-200 NMM 50-250 NMM 50-315 NMM 65-160...
Page 32 FORCES MOMENTS DN Flange Suction Flange Discharge Flange Suction Flange Discharge Flange PUMP TYPE EnduroPro 50-200 EnduroPro 80-250 EnduroPro 100-250 1000 1117 1117 1000 EnduroPro 100-315 EnduroPro 150-315 1500 1350 1667 1350 1667 1500 EnduroPro 300-315 3410 3067 3810 3067 3810 3410 1200 1391 1695 1638 1886 2305 Table 7: EnduroPro Series - Forces and Moments at The Pump Flanges...
Page 33 14. SAMPLE PLUMBING Figure 18: Sample Plumbing Tank B. Long radius elbow C. Minimum slope is 2 cm/m D. Fittings, flanges etc. E. Non-return valve Foot valve G. Suction valve Reducer İ. Discharge valve Electrical connection K. Insulated cable Concrete foundation M. Compensator...
Page 34 15. SECTIONAL DRAWING AND PARTS LISTS 15.1. NM Mechanical Seal Design Sectional Drawing and Part List 360 300 220-221 Part Part Part Part Name Part Name Part Name Pump Casing Impeller Nut Plug Impeller V-Ring Stud Bearing Housing Ball Bearing Safety Sheet Hexagonal Bolt Bearing Housing Cover Ball Bearing Hexagonal Bolt Support Foot Impeller Key...
Page 35 15.2. NM Soft Packing Design Sectional Drawing and Part List 220-221 56 240 Part Part Part Part Name Part Name Part Name Pump Casing Impeller Nut Plug Impeller V- Ring Stud Bearing Housing Bearing House Safety Sheet Stud for Gland Bearing Housing Cover Ball Bearing Hexagonal Bolt Supporting Part Coupling Key Hexagonal Bolt Stuffing Box Impeller Key Hexagonal Bolt...
Page 36 15.3. NMM Monoblock Design without Coupling Sectional Drawing and Part List Part Part Part Part Name Part Name Part Name Pump Casing Impeller Key Hexagonal Bolt Adapter Mechanical Seal Hexagonal Bolt Impeller Plug (Adapter) Hexagonal Bolt Supporting Foot Drain Plug Packing Retaining Ring Plug, Pump Casing Setscrew Pump Shaft Stud, Pump Casing O-Ring Impeller Nut...
Page 37 15.4. NMM Monoblock Design with Coupling Sectional Drawing and Part List Part Part Part Part Name Part Name Part Name Pump Casing Impeller Key Hexagonal Bolt Adapter Mechanical Seal Hexagonal Bolt Impeller Plug (Adapter) Supporting Foot Drain Plug Setscrew Packing Retaining Ring Plug, Pump Casing O-Ring Pump Shaft Stud, Pump Casing Coupling (Motor Side) Impeller Nut Hexagonal Bolt Coupling (Pump Side)
Page 38 15.5. NMP Monoblock Design Sectional Drawing and Part List Part Part Part Part Name Part Name Part Name Pump Casing Impeller Nut Bolt Adapter Impeller Key Hexagonal Nut Motor Flange Mechanical Seal Hexagonal Nut Impeller Hexagonal Bolt Setscrew Stuffing Box Hexagonal Bolt O-Ring Pump Shaft...
Page 39 15.6. EnduroPro Mechanical Seal Design Sectional Drawing and Part List 370 210 Part Part Part Part Name Part Name Part Name Volute Casing Impeller Key Bolt Spacer Bolt Sealing Oil Bath Oil Seal Imbues Bolt Impeller Oil Seal Bearing Housing Retaining Ring Supporting Foot Retaining Ring Safety Sheet Stuffing Box Mechanical Seal Impeller Washer...
Page 40 16. EXPLODED VIEWS AND PART LISTS 16.1. NM Mechanical Seal Design Exploded View and Part List Part Part Part Part Name Part Name Part Name Pump Casing Impeller Nut Plug Impeller V-Ring Stud Bearing Housing Ball Bearing Safety Sheet Hexagonal Bolt Bearing Housing Cover Ball Bearing Hexagonal Bolt Support Foot Impeller Key Hexagonal Bolt Stuffing Box...
Page 41 16.2. NM Soft Packing Design Exploded View and Part List Part Part Part Part Name Part Name Part Name Pump Casing Impeller Nut Plug Impeller V- Ring Stud Bearing Housing Bearing House Safety Sheet Stud for Gland Bearing Housing Cover Ball Bearing Hexagonal Bolt Supporting Part Coupling Key Hexagonal Bolt Stuffing Box Impeller Key Hexagonal Bolt Gland Soft Packing...
Page 42 16.3. NMM Monoblock Design without Coupling Exploded View and Part List Part No Part Name Pump Casing Adapter Impeller Supporting Foot Packing Retaining Ring Pump Shaft Impeller Nut Impeller Key Mechanical Seal Plug (Adapter) Drain Plug Plug, Pump Casing Stud, Pump Casing Hexagonal Bolt Hexagonal Bolt Hexagonal Bolt Setscrew O-Ring...
Page 43 16.4. NMM Monoblock Design with Coupling Exploded View and Part List Part No Part Name Pump Casing Adapter Impeller Supporting Foot Packing Retaining Ring Pump Shaft Impeller Nut Impeller Key Mechanical Seal Plug (Adapter) Drain Plug Plug, Pump Casing Stud, Pump Casing Hexagonal Bolt Hexagonal Bolt Hexagonal Bolt Setscrew O-Ring Coupling (Motor Side) Coupling (Pump Side)
Page 44 16.5. NMP Monoblock Design Exploded View and Part List Part Part Part Part Name Part Name Part Name Pump Casing Impeller Nut Bolt Adapter Impeller Key Hexagonal Nut Motor Flange Mechanical Seal Hexagonal Nut Impeller Hexagonal Bolt Setscrew Stuffing Box Hexagonal Bolt O-Ring Pump Shaft...
Page 45 16.6. EnduroPro Mechanical Seal Design Exploded View and Part List Part Part Part Part Name Part Name Part Name Volute Casing Impeller Key Bolt Spacer Bolt Sealing Oil Bath Oil Seal Imbues Bolt Impeller Oil Seal Bearing Housing Retaining Ring Supporting Foot Retaining Ring Safety Sheet Stuffing Box Mechanical Seal Impeller Washer Bearing Sleeve Plug...
Page 46 17. MEI VALUE TABLE Pump Type Speed (rpm) Pump Type Speed (rpm) NM 32-160 1450 ≥ 0.6 NM 32-160 2900 ≥ 0.4 NM 32-200 1450 ≥ 0.7 NM 32-200 2900 ≥ 0.7 NM 32-250 1450 ≥ 0.5 NM 32-250 2900 ≥ 0.5 NM 40-160 1450 ≥ 0.4 NM 40-160 2900 ≥ 0.4 NM 40-200 1450 ≥ 0.7 NM 40-200 2900 ≥ 0.7 NM 40-250...
Page 47 Pump Type Speed (rpm) Pump Type Speed (rpm) NMM 32-160 1450 NMM 32-160 2900 NMM 32-200 1450 NMM 32-200 2900 NMM 32-250 1450 NMM 32-250 2900 NMM 40-160 1450 NMM 40-160 2900 NMM 40-200 1450 NMM 40-200 2900 NMM 40-250 1450 NMM 40-250 2900 NMM 50-160 1450 NMM 50-160 2900 NMM 50-200 1450 NMM 50-200 2900 NMM 50-250 1450 NMM 50-250...
Page 48 NOTES...
Page 49 NOTES...
Page 50 NOTES...
Page 51 masdaf.com...
Page 52 masdaf.com...

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Nmm series Nmp series Enduropro series Nm 32-160 Nm 32-200 Nm 32-250 ... Show all