SPX Cooling Technologies TG MAG15-50, TG MAG185-125, TG MAG58-80, TG MAG23-65 Trouble shooting

Page 41

3.20 Trouble shooting

Symptom

Cause

Remedy

No flow

Suction lift too high

1

•

Reduce difference between

Pump not priming

 

 

 

pump and suction tank level.

 

 

 

•

Increase suction pipe diameter.

 

 

 

•

Reduce length and simplify suction pipe (use as

 

 

 

 

few elbows and other fittings as possible).

 

 

 

 

Also see section 3.18 Installation.

 

Air leak in suction line

2

•

Repair leak.

 

Very low viscosity

3

•

Increase pump speed and reduce axial clearance

 

 

 

 

(see section 3.21 Maintenance instructions).

 

Suction strainer or filter clogged

4

•

Clear suction strainer or filter.

 

Pump casing incorrectly installed

5

•

Install pump casing correctly.

 

after repair

 

 

See section 3.18 Installation.

 

Wrong direction of rotation of motor

6

•

For 3-phase drivers change 2 connections.

 

 

 

•

Change suction and discharge opening.

 

 

 

 

(Attention! Check the location of the safety relief

 

 

 

 

valve and correct circulation pump insert).

 

Magnetic coupling is slipping

7

•

Check/correct assembly of rotor shaft and bear-

 

 

 

 

ings and magnetic coupling

 

 

 

•

Check start-up conditions for the magnetic cou-

 

 

 

 

pling in combination with applied electrical motor

 

 

 

 

if necessary add fly-wheel or apply soft start.

 

 

 

•

Check operating parameters against break-away

 

 

 

 

torque of the magnetic coupling.

 

 

 

•

Check if the pump is blocked, remove blockage.

Irregular flow

Liquid level in suction tank falls too low

8

•

Correct liquid supply

 

 

 

•

Provide a liquid level switch

 

Output too high

9

•

Reduce pump speed/or install a smaller pump.

 

 

 

•

Install by-pass line with check-valve.

 

Air sucking

10

•

Repair leak in suction line.

 

Cavitation

11

•

Reduce difference between pump and suction

 

 

 

 

tank level.

 

 

 

•

Increase suction pipe diameter.

 

 

 

•

Reduce length and simplify suction pipe (use as

 

 

 

 

few elbows and other fittings as possible).

 

 

 

 

Also see chapter 3.18 Installation.

 

Liquid vaporises in pump

12

•

Check temperature.

 

(e.g. by heating up)

 

•

Check vapour pressure of liquid.

 

 

 

•

Reduce pump speed. If necessary install a larger

 

 

 

 

pump.

Not enough capacity

Pump speed too low

13

•

Increase pump speed. Attention! Do not exceed

 

 

 

 

maximum speed and check NPSHr.

 

Air sucking

14

•

Repair leak in suction line.

 

Cavitation

15

•

Reduce difference between pump and suction

 

 

 

 

tank level.

 

 

 

•

Increase suction pipe diameter.

 

 

 

•

Reduce length and simplify suction pipe (use as

 

 

 

 

few elbows and other fittings as possible).

 

 

 

 

Also see section 3.18 Installation.

 

Back pressure too high

16

•

Check discharge pipe.

 

 

 

•

Increase pipe diameter.

 

 

 

•

Reduce working pressure.

 

 

 

•

Check accessories (filter, heat exchanger, etc.).

 

Safety relief valve set too low

17

•

Correct pressure setting.

 

Viscosity too low

18

•

Increase pump speed. Attention! Do not exceed

 

 

 

 

maximum speed and check NPSHr.

 

 

 

•

If necessary, install a larger pump.

 

Axial clearance

19

•

Check axial clearance and correct.

 

 

 

 

See section 3.21 Maintenance instructions.

 

Gases come free

20

•

Increase pump speed. Attention! Do not exceed

 

 

 

 

maximum speed and check NPSHr.

 

 

 

•

Install a larger pump

A.0500.551 – IM-TGMAG/02.00 EN (02/2008)

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Contents TopGear MAG EC-Declaration of conformity Contents Installation Rotor bearing assemblyGuidelines for assembly Cleaning the pumpMaintenance instructions Instructions for re-using and disposal 20.1.1Clearance adjustment Designation of threaded connections 20.1.2Pump cover and intermediate cover SS Hydraulic part Bearing bracket Jacket optionsPump cover and intermediate cover TT Pump cover and without jackets on intermediate cover TOCReception, handling and storage GeneralReception HandlingGeneral SafetyPump unit handling InstallationPump units Name plate CE Declaration of Conformity Disassembly/assembly of the coupling guardBefore commissioning the pump unit Technical conventions Quantity Symbol UnitDifferential pressure = bar Maximum pressure at discharge flange design pressure = barExample Type designationPump family code TG = TopGear Pump range name Jacket options for pump cover 0 Pump cover without jacketsIdler pin materials Idler bush and idler materialsBushes on shaft materials Rotor and shaft materialsOperating principle Pump standard partsSound Safety relief valve Working principleGeneral performance Self-priming operationPressure Main characteristicsSound level Sound level of a pump without driveSound level of the pump unit Jacket options Maximum and minimum allowable temperatureInternals InfluencesOperation under hydrodynamic lubrication conditions Maximum temperature of internalsMaximum torque of pump shaft and rotor material combination Hyd = design constant for each pump sizeAxial and radial clearances Mass moment of inertiaExtra clearances Inner partsDiametral clearance on pin / idler bearing Play between gear teethMaximum size of solid particles Magnetic coupling Components of the magnetic driveMaximum allowable temperature and nominal torque Rotor bearing assemblySamarium Cobalt SmCo 280C Neodymium Iron Boron NdFeB 120 C BelowCirculation pump Materials rotor bearing assemblySealing rings and gaskets Material circulation pump partsSafety relief valve heated spring casing Safety relief valveMaterials Working pressure classMaterials Definition and working principlePressure HeatingSpring ratio Safety relief valve Safety relief valve Relative adjustmentSectional drawings and part lists Single safety relief valveHeated spring casing InstallationOutdoor installation AccessibilityIndoor installation LocationStability DrivesStarting torque Radial load on shaft endShaft rotation Check after connecting whether the shaft can move freelySuction and discharge pipes Forces and momentsIsolating valves PipingSuction piping Self-priming operationStrainer Secondary pipingDrain lines Heating jacketsTransport of pump unit Guidelines for assemblyFoundation pump unit Jacket on pump coverShaft coupling Combustion enginesGuarding of moving parts Check temperature censor on canAlignment tolerances Belt driveCleaning suction line Cleaning the pumpInstructions for start-up Venting and fillingStart-up Checklist Initial start-upAbnormal operation Shut-downTrouble shooting Tion Preparation Maintenance instructionsInstructions for re-using and disposal External cleaning Motor safetyTools Shut-downFluid circuits Specific componentsNuts and bolts Plastic or rubber componentsBack pull-out Clearance adjustmentFront pull-out 0600 8120 8110 8100 4000 0701 0040 0010 Threaded connection G example G 1/2 Designation of threaded connectionsThreaded connection Rp example Rp 1/2 Disassembly of front-pull-out assembly DisassemblyDisassembly of bearing bracket Disassembly of top cover 0100 or safety relief valveTake off top cover 0100 or safety relief valve Removal of bearing bracketRemoval of ball bearings Disassembly of pump shaft completeDisassembly of outer magnetic rotor Disassembly of back-pull-out assembly Disassembly of separation canUn-tighten cap head screws 8460 and remove them Take out O-rings 81308310 8520 8510 8500 8350-D 8400 0701 Assembly of bearing bracket AssemblyTake care not to damage the outer rotor magnet Adjustment of the axial clearance Pre-assembly of the back-pull-outCirculation pump Mount axial bearing 8350-A into the insertAssembly of rotor shaft Axial clearance Assembly of the separation can Assembly of the back-pull-out assembly to the pump casingAssembly of the front-pull-out assembly Assembly of the bearing bracketMount bearing bracket support 1700 to the bearing bracket Measure the distances as indicated on the sketchTighten tap bolts 1010 crosswise with Specified torque Assembly of top cover 0100 or safety relief valveOn the pump cover 4000 with tap bolts TG MAG185-125 How to order sparesTG MAG15-50 to Bearing bracket Hydraulic partJackets on intermediate cover Jacket optionsJackets on pump cover 0220 0200 0310 0250 0240 0300 0320 0230 0210 TG MAG15-50 to 185-125 pumps Dimensional drawingsStainless steel Flange connectionsCast iron Jackets Single safety relief valve Safety relief valvesJackets dimensions Dv dk Heated safety relief valveBracket support Weights MassCopyright 2008 SPX Corporate

TG MAG86-100, TG MAG23-65, TG MAG58-80, TG MAG15-50, TG MAG185-125 specifications

SPX Cooling Technologies has established itself as a leader in the design and manufacturing of cooling systems, offering a wide range of products tailored to meet specific industrial and commercial needs. Among its impressive lineup, the TG MAG series stands out, featuring models such as TG MAG185-125, TG MAG23-65, TG MAG86-100, TG MAG58-80, and TG MAG15-50. Each of these models combines innovative technology with robust performance characteristics, making them ideal choices for various applications.

The TG MAG185-125 model is designed for high-capacity cooling requirements, offering exceptional thermal performance while maintaining energy efficiency. Its advanced fan design minimizes noise levels, making it suitable for installations in noise-sensitive areas. Furthermore, the unit benefits from a corrosion-resistant construction, ensuring longevity and reliable operation in diverse environments.

For smaller applications, the TG MAG23-65 provides a compact solution without compromising on performance. This unit features a space-efficient design and utilizes high-efficiency fans that optimize airflow, thereby enhancing overall cooling efficiency. The integrated digital controls allow for precise temperature management, making it easy for operators to monitor and adjust settings as needed.

The TG MAG86-100 model serves as an ideal middle-ground solution, balancing capacity and efficiency. It incorporates state-of-the-art technology, such as variable speed drives, which adjust the fan speed based on cooling demand, resulting in significant energy savings. The design also promotes easy maintenance, with accessible components that facilitate regular servicing and inspections.

For medium-scale needs, the TG MAG58-80 combines durability with performance, featuring a robust frame that can withstand harsh operational conditions. Its efficient heat exchange technology maximizes cooling output while minimizing energy consumption. Moreover, the enhanced airflow system ensures uniform cooling across the entire unit.

Lastly, the TG MAG15-50 is perfect for smaller spaces where cooling requirements are less demanding. Despite its size, this model is equipped with cutting-edge features such as a compact structure and highly efficient cooling mechanisms to ensure effective performance. The easy installation process and low maintenance needs further enhance its appeal.

Overall, the TG MAG series provides a range of innovative cooling solutions tailored to meet diverse industrial requirements, characterized by efficiency, durability, and advanced technology, ensuring optimal performance across all operating conditions.
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