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SPX TG H15-50 - User Manual

SPX TG H15-50
110 pages
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A.0500.351 – IM-TG H/07.02 EN (10/2015)
TopGear H
INTERNAL GEAR PUMPS
ORIGINAL INSTRUCTIONS
READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.
INSTRUCTION MANUAL

Table of Contents

Questions and Answers

  • G
    Gregory RodriguezAug 14, 2025
    Why SPX Water Pump has no flow and is not priming?
    • A
      Angela PerezAug 14, 2025
      The SPX Water Pump might not be priming due to several reasons. The suction lift may be too high, so you should reduce the difference between the pump and suction tank level, increase the suction pipe diameter, or reduce the length and simplify the suction pipe. There could be an air leak in the suction line that needs repair. If the viscosity is very low, increase the pump speed and reduce axial clearance. Also, check if the suction strainer or filter is clogged and clear it if necessary. Ensure the pump casing is correctly installed. Finally, verify the motor's rotation direction, changing connections for 3-phase drivers or swapping the suction and discharge openings, while checking the safety relief valve location.
  • P
    paulkirkAug 25, 2025
    Why SPX Water Pump consumes too much power or becomes hot?
    • L
      Lisa WilsonAug 25, 2025
      If your SPX Water Pump is consuming too much power or getting hot, the pump speed might be too high; reduce it and consider installing a larger pump if necessary. The gland packing could be too tight, so check or replace it. Misalignment of the coupling can also cause this issue, so check and correct the alignment. If the viscosity is too high, increase the axial clearance, heat the pump, reduce the pump speed, or increase the discharge pipe diameter.
  • B
    Bryan AyalaAug 27, 2025
    How to fix a noisy SPX Water Pump?
    • J
      jordankaylaAug 27, 2025
      If your SPX Water Pump is too noisy, it could be due to several reasons. The pump speed might be too high; reduce it and consider installing a larger pump if necessary. Cavitation could be occurring, so reduce the difference between the pump and suction tank level, and increase the suction pipe diameter. High back pressure could also be the issue; increase the pipe diameter, reduce the working pressure, and check accessories like filters or heat exchangers. Check and correct the coupling alignment. Vibration of the base plate or pipings can also cause noise; make the base plate heavier and/or fix the base plate/pipe work better. Finally, damaged or worn ball bearings can contribute to the noise; replace them if necessary.
  • D
    David HolmesAug 31, 2025
    What causes rapid wear in SPX Water Pump?
    • M
      michelle10Aug 31, 2025
      Rapid wear in your SPX Water Pump can be caused by several factors. High back pressure can be a culprit, so increase the pipe diameter, reduce the working pressure, and check accessories like filters and heat exchangers. Solid matter in the liquid can also cause wear, so filter the liquid. The pump running dry is another cause; correct the liquid supply, provide a level switch or dry running protection, heat up the liquid, and stop or reduce air sucking. Finally, corrosion can lead to rapid wear, so consider changing the pump materials or application parameters.
  • D
    Donna GarnerSep 3, 2025
    What causes motor overloading in SPX Water Pump?
    • T
      Timothy PrestonSep 3, 2025
      Motor overloading in your SPX Water Pump can stem from several issues. High back pressure might be the cause; increase the pipe diameter, reduce the working pressure, and check accessories like filters and heat exchangers. If the gland packing is too tight, check and replace it. High viscosity can also lead to overloading; increase the axial clearance, heat the pump, reduce the pump speed, or increase the discharge pipe diameter.
  • S
    Stacey DavisSep 6, 2025
    What causes rapid wear of the mechanical seal in SPX Water Pump?
    • D
      Dennis EverettSep 6, 2025
      Rapid wear of the mechanical seal in your SPX Water Pump can be attributed to several factors. If the viscosity is too high, heat the pump or install a double mechanical seal. Bad de-aerating or dry running can also cause this; fill the pump with liquid and check the position of the relief valve or top cover. High temperature can be a factor; reduce the temperature or install a suitable mechanical seal. If the priming period is too long or there's dry running, reduce the suction line, provide dry running protection, and check the maximum allowable dry running speed for the mechanical seal. Finally, if the liquid is abrasive, filter or neutralize it, or install a double mechanical seal with hard seal faces and barrier liquid.
  • R
    rkellySep 10, 2025
    What to do if SPX Water Pump is leaking?
    • E
      Edward MartinSep 10, 2025
      If your SPX Water Pump is leaking, it could be due to the gland packing leaking excessively; check or replace the gland packing. Alternatively, the mechanical seal may be leaking, in which case you should replace it.
  • E
    erika62Nov 16, 2025
    What to do if SPX Water Pump has not enough capacity?
    • R
      rcolemanNov 16, 2025
      If your SPX Water Pump isn't providing enough capacity, several factors could be responsible. The pump speed might be too low; if so, increase it, but be careful not to exceed the maximum speed and check the NPSHr. Air could be getting into the system; repair any leaks in the suction line, and check or replace the shaft seal. Cavitation might be occurring, so reduce the difference between the pump and suction tank level, and increase the suction pipe diameter. High back pressure could also be the issue; check the discharge pipe, increase the pipe diameter, reduce the working pressure, and inspect accessories like filters or heat exchangers. Ensure the safety relief valve isn't set too low and correct the pressure setting if needed. If the viscosity is too low, increase the pump speed, inst...
  • A
    Anthony FisherNov 20, 2025
    Why does SPX Water Pump stall or have irregular flow?
    • A
      Austin WilliamsNov 20, 2025
      If your SPX Water Pump is stalling or experiencing irregular flow, it could be due to several reasons. The liquid level in the suction tank might be too low; correct the liquid supply or provide a level switch. The output may be too high; reduce the pump speed or install a smaller pump, or install a by-pass line with a check-valve. Air could be getting sucked in; repair any leaks in the suction line, check or replace the shaft seal, provide a quench on the shaft seal, or connect plug Bb to the pump discharge to increase pressure in the sealing box. Cavitation might be occurring; reduce the difference between the pump and suction tank level, and increase the suction pipe diameter. Alternatively, the liquid may be vaporizing in the pump due to heating; check the temperature and vapor pressur...

Summary

1.0 Introduction

1.3 Safety

Crucial safety instructions for operating and maintaining the pump.

2.0 Pump description

3.0 General technical information

3.2 Operating principle

3.4 General performance

3.5 Main characteristics

Table of key performance data including viscosity and dimensions.

3.6 Pressure

Details on differential, working, and test pressures for the pumps.

3.12 Axial and radial clearances

3.15 Maximum size of solid particles

3.16 Shaft sealings

Information on different shaft sealing types and materials.

3.17 Safety relief valve

Details on types, materials, and pressure classes of safety relief valves.

3.18 Installation

Basic instructions and considerations for pump installation.

3.19 Instructions for start-up

Procedures and checklist for initial pump start-up.

3.20 Trouble shooting

Common pump problems, their causes, and remedies.

3.21 Maintenance instructions

On-site maintenance procedures for normal operations.

4.0 Instructions for assembly and disassembly

4.1 General

General guidelines and warnings for pump assembly and disassembly.

4.2 Tools

4.3 Preparation

4.4 After disassembly

4.5 Anti-friction bearings

4.6 Relief valve

Procedures for disassembling and assembling the relief valve.

4.7 Mechanical seal

Guidelines for assembly and adjustment of mechanical seals.

SPX TG H15-50 Specifications

General IconGeneral
BrandSPX
ModelTG H15-50
CategoryWater Pump
LanguageEnglish

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