Vogt NM Series Service Manual
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Vogt NM Series Service Manual

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Summary of Contents for Vogt NM Series

  • Page 2 The design, materials and workmanship incorporated in the construction of VOGT pumps allow for a long, trouble-free service life. The life and satisfactory performance of the VOGT pumping equipment, in any case, depend on a correct application, installation and, in addition, of a periodic inspection and careful maintenance.

  • Page 3: Safety Instructions

    Safety Instructions 2.1 Definitions WARNING Indicates a procedure, operation, etc., with a strong possibility of severe personal injury, loss of life or irreparable damage to equipment, if not performed properly. CAUTION Indicates a procedure, operation, etc., with a strong possibility of severe damage to the pumping equipment, if not performed properly.

  • Page 4: Qualification And Training Of Operating Personnel

    2.4 Risks due to non-compliance with Safety Instructions VOGT S.A. declines all responsibility that may arise from not respecting the safety standards in force at any time, during the handling, installation or operation of its equipment.

  • Page 5: Equipment Description

    Equipment Description 3.1 Pumping Equipment, Main Components 1. Discharge Flange 2. Water Cutting Rubber 3. Monoblock Shaft Clamp 4. Motor Lifting Eyebolt 5. Electric Motor 6. Motor Terminal Box 7. Pumping Equipment Base 8. Union Body 9. Pump Body 10.Suction Flange 11.Pressure Gauge Plug 12.Priming Plug 13.Plug for Hand Vacuum Gauge...
  • Page 6 Equipment Description 3.3 NM Series Centrifugal Pump 3.3.1 NM Series Sectional Cutting Figure 3 3.3.2 Description of NM Series Pump Parts and Pieces DENOMINATION NUM. Impeller Pump Body Union Body Postizo Shaft Impeller Key 10.01 Monoresorte Mechanical Seal O'Ring Pump Body / Union Body 19.01...

  • Page 7: Transportation, Storage And Handling

    VOGT S.A. to indicate the same. For the handling, the equipments that require it have appropriate eyebolts on the bench.

  • Page 8: After Storage

    Transportation, Storage and Handling 4.3.2 After Storage • Remove the temporary protections and visually check the condition of all the elements. • If the pump has been stored and/or stopped for a long period of time (more than 6 months), it is necessary to renew the lubrication of the motor bearings as indicated in the motor manual.

  • Page 9: Installation

    5.3 Mounting Positions The NM series pumps can be mounted as shown in Figure 5, i.e. horizontal, vertical with the motor on top and inclined with the motor on top of the pump. They should never be mounted vertical with the motor down or inclined with the motor down.

  • Page 10: Anchor Bolts

    5.5 Anchor Bolts VOGT S.A. supplies the pumping equipment with bases, these must be anchored to the foundation by means of anchor bolts, as shown in figure 7 and applying the tightening torque according to table N° 2.
  • Page 11 Installation Figure 7 The diameters of the pipes, valves and fittings must be calculated according to the expected head losses in the installation and in such a way that the fluid velocities are: • Velocity in delivery pipe: 2 to 3 m/s. •...
  • Page 12 Installation The end of the suction pipe, which goes at the source of the fluid, should be submerged at least 4 times its diameter to avoid the formation of vortices, which cause air to pass into the pump and cut off the liquid flow, Figure 10. After the suction and discharge pipes have been installed, they should be cleaned of any debris before starting up the equipment, in order to avoid damage to the pump and other equipment installed in the system.
  • Page 13 That is why VOGT S.A., recommends the use of expansion joints as part of the piping system that connects to the pump, when conditions warrant it, see figure 12.

  • Page 14: Before Start-Up

    Start-up 6.1 Before start-up After a pump has been installed and all mechanical, hydraulic and electrical connections have been made, it is ready for commissioning. However, prior to initial start-up, the following is recommended: 6.2 Pump Priming CAUTION Never run a pump dry. Most centrifugal pumps have a mechanical seal or stuffing box, therefore they cannot be run dry under any working conditions, otherwise the sealing elements will be seriously damaged.
  • Page 15 Start-up 6.6 Engine Considerations CAUTION It is important to check before the first start-up that the technical specifications of the motor, which come on the nameplate, correspond to the technical characteristics required by the pump and those of the place where the motor is going to operate. Verify that: •...
  • Page 16 Start-up 6.8.1 Instructions for the Connection of Three Phase Electric Motors To make a delta connection, the bridges are placed in the electric motor box connecting: U with Z, V with X, W with Y. The wires from the electric panel to the motor junction box connect the terminals: U to U, V to V, W to W, (see fig. No. 14-a). To make the star connection connect together the three terminals: X-Y-Z of the junction box and connect the terminals U-V- W with the corresponding terminals U-V-W on the electric panel.

  • Page 17: Maintenance

    Maintenance 7.1 General Considerations CAUTION • Adequate and periodic maintenance of the equipment is essential to obtain a good level of performance and an extension of the service life. • For the motor, the required service intervals and the type of maintenance to be performed are described in the MAINTENANCE SCHEDULE described in the respective motor manual provided by the manufacturer.
  • Page 18 Maintenance Newly installed mechanical seals may leak liquid between their sealing faces, this is small and should diminish with some time of operation. Mechanical seals do not require maintenance, but when they have completed their service life, they should be replaced completely with new seals.

  • Page 19: Arming And Disarming

    • The plant operator must ensure that the operating instructions are fully understood by the personnel. • In order to be eligible for the warranty period of the warranty offered by VOGT S.A., it is necessary that: o The instructions in this manual have been correctly followed.

  • Page 20: Pump Disassembly

    Arming and Disarming 8.2 Pump Disassembly 8.2.1 Disassembly of the Pump Body (Photographic Sequence Nº 1) • To uncouple the pump body (fig.3 - 2), remove the fastening bolts (fig.3 - 25.01) between the pump body and the union body of the unit (fig.3 - 3). •...
  • Page 21 Arming and Disarming 8.2.3 Mechanical Seal Disassembly, Rotary Face (Photographic Sequence No. 3) • When disassembling the seal (fig.3 - 11), the spring should be removed first. • Then the rotating element is disengaged, being very careful not to damage its faces. •...
  • Page 22 Arming and Disarming 8.2.5 Disassembly of the Monoblock Shaft (Photographic Sequence Nº 5) • At this point the Monoblock Shaft (fig.3 -7T), is free inside the Union Body. • It must be removed towards the motor side of the Union Body, taking care not to damage the stationary element of the mechanical seal.

  • Page 23: Pump Assembly

    Arming and Disarming 8.3 Pump Assembly Figure 16 Pump assembly is basically the reverse sequence of disassembly. Keep in mind: · Pump assembly should be performed in a clean environment, free of dust and other contaminants. · Have all the necessary parts and pieces. ·...
  • Page 24 Arming and Disarming 8.4 NM Series Pump Exploded View Figure 17 Table Nº 5 DENOMINATION NUM. Impeller Pump Body Union Body Postizo Shaft Impeller Key 10.01 Monoresorte Mechanical Seal O'Ring Pump Body / Union Body 19.01 Clamp Shaft Pump Body Bolt / Union Body 25.01...

  • Page 25: Useful Tips

    Useful Tips for trouble-free operation 9.1 Flow Rate is Insufficient Possible Causes Solutions · Check and complete the filling of the system with 1.- The pump is not primed. liquid. · Check the delivery geometric height. 2.- The discharge head is too high (higher than that ·...
  • Page 26 Useful Tips for trouble-free operation 9.3 Pump Overloads Motor Possible Causes Solutions 1.- The pumped liquid has a viscosity or density · Check and consult the manufacturer. different from that for which the pump was selected. 2.- There are mechanical defects (moving parts ·...

  • Page 27: Warranty

    • Our Technical Service is the only one authorized to intervene in equipment within the warranty period. • If the pump does not work properly, DO NOT disassemble it, look for the fault in the installation. All VOGT equipment has been satisfactorily tested at the factory.
  • Page 28 High-End Services We have specialized engineers with great experience in hydraulic systems, developing an excellent service. We have implementad a comprehensive service system, which allows us to provide effective and timely solutions far each of our clients, independent of the industrial sector to which they belong. In-Site Services Multi-Brand Technical Service ln-Site Repairs.
  • Page 29 Our Company It was founded in 1954 as a company dedicated to the manufacture of Pumps, with great success in the agricultural sector. Thanks to an intense development of technologies, engineering and innovation, we position ourselves as a leader in the manufacture and commercialization of solutions and pumping equipment in a wide spectrum of markets, such as mining, construction, agriculture, sanitation and the industrial sector in general.
  • Page 30 COMMERCIAL OFFICE IQUIQUE ANTOFAGASTA BRANCH (+56-55) 245 6600 (+56-55) 245 6600 El Salitre 7745 (+56-9) 6229 4764 antofagasta@vogt.cl iquique@vogt.cl HEAD OFFICE SANTIAGO COPIAPÓ BRANCH (+56-2) 2829 1200 (+56-52) 2210 954 Ojos del Salado 0851, Quilicura Panamericana Norte 3604, Local 3, Bodega 3 vogt@vogt.cl...

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