Service

 

 

Maintenance - Repair 24 with perfect service

 

Hệ thống Your pump system operating stability, performance guarantees, have you ever thought that we would be paralyzed on one day and led to a delayed system? Do not be surprised about that, because even though a machine where abundant energy to run and also "exhausted" if you do not know how to care for and preserve it.
This fundamental to good use, increase shelf life and ensure maximum pump performance is to conduct timely maintenance and periodic preventive repair. At this moment, remember to Weco, we will be there to support you. A professional maintenance process from the stage of disease testing to repair and replacement parts and maintenance for machine longevity and qualified technical staff, skilled will make you satisfied with the service we do.
With a nationwide network, 24 of Weco services are available to support partners with service pack 2: Periodic maintenance services and maintenance as required.
Be a partner with Weco services will help your pump system work better..

Industries & Applications

Weco will help you find solutions to the most suitable and efficient pump for each specific area

Read more

Search Product


 
 
  • gasoline_engine3
     
    Fire pump engine using gasoline
     
    Model: 65x50 FS2JA Applications in the field of industrial plants, high-rise buildingsm, Fire pump engine ...
     
     

    Read more

 
 

Check Virbration

Features:
Model 211 Vibration Meter and 211M (Metric) measures overall vibration amplitude in the range

Read more

Maintain Pumping Systems Effectively

Suggested Actions
Establish a pumping system maintenance program

Read more

Check the temperature of the device

Check the temperature of the engine, the pump:
- Check the temperature of pumps and motors in actual

Read more

Measuring motor speed

Check engine speed with LASER gun:
- Put up awareness LASER light coupling
- Press the speed test

Read more

img

The pump is not producing enough capacity to satisfy the application 10-10

This is the second paper in a four part series about pump troubleshooting. Let me begin by pointing ...

Read more

img

Trim or Replace Impellers on Oversized Pumps

Suggested Actions 
Consider impeller trimming when any of the following apply:
• The head provide...

Read more

img

Optimize Parallel Pumping Systems

When multiple pumps operate continuously as part of a parallel pumping system, there can be opportun...

Read more

img

Adjustable Speed Pumping Application

Suggested Actions
• Consider using adjustable speed drives in pumping applications that range from 1 ...

Read more



Maintain Pumping Systems Effectively

Suggested Actions 

Establish a pumping system maintenance program that includes the following:
• Preventive actions
• Predictive actions
• Periodic efficiency testing.

Effective pump maintenance allows industrial plants to keep pumps operating well, to detect problems in time to schedule repairs, and to avoid early pump failures. Regular maintenance also reveals deteriorations in efficiency and capacity, which can occur long before a pump fails. Wear ring and rotor erosions, for example, can be costly problems that reduce wire-to-water efficiency by 10% or more.
The amount of attention given to maintenance depends on how important a system is to a plant’s operations. Downtime can be expensive when it affects critical processes. Most maintenance activities can be classified as either preventive or predictive. Preventive maintenance addresses routine system needs such as lubrication, periodic adjustments, and removal of contaminants. Predictive maintenance focuses on tests and inspections that detect deteriorating conditions.

Preventive Actions
Preventive maintenance activities include coupling alignment, lubrication, and seal maintenance and replacement. Mechanical seals must be inspected periodically to ensure that either there is no leakage or that leakage is within specifications. Mechanical seals that leak excessively usually must be replaced. A certain amount of leakage is required, however, to lubricate and cool the packing seals. But the packing gland needs to be adjusted if the leakage exceeds the manufacturer’s specifications. The packing gland must be replaced if it has to be tightened excessively to control leakage. Overtightening causes unnecessary wear on the shaft or its wear sleeve and increases electric power use. Routine maintenance of pump motors, such as proper lubrication and cleaning, is also vital.

Predictive Actions
Predictive maintenance helps minimize unplanned equipment outages. Sometimes called “condition assessment” or “condition monitoring,” it has become easier with modern testing methods and equipment. The following methods apply to pumping systems:
Vibration analysis. Trending vibration amplitude and frequency can detect an impending bearing failure. It can also reveal voltage and mechanical imbalances that could be caused by impeller erosion or coupling problems. Changes in vibration over time are more meaningful than a single “snapshot” of the vibration spectrum.
Motor current signature analysis. Sometimes called “dynamic analysis,” this reveals deteriorating insulation, rotor bar damage, electrical system unbalance, and harmonics. It can also pick up system problems such as malfunctioning control valves that cause flow rate disturbances. Tracking the signature over time is more valuable than a single snapshot.

Lubrication oil analysis. This applies only to large, oil-lubricated pumps, and is an expensive procedure. Oil analysis can detect bearing problems caused by metal particles or chemical changes that result from overheating, and seal problems caused by pumped fluid in the oil. It also provides guidance on proper oil-change intervals.
Periodic efficiency testing. Testing the wire-towater efficiency and keeping records to spot trends is useful.
Finally, see the checklist of maintenance items below, which can be tailored for many kinds of systems, applications, and facilities.

Basic Maintenance Checklist
• Packing. Check for leakage and adjust according to the instructions of the pump and packing manufacturers. Allowable leakage is usually 2 to 60 drops per minute. Add packing rings or, if necessary, replace all the packing.
• Mechanical Seals. Check for leakage. If leakage exceeds he manufacturer’s specifications, replace the seal.
• Bearings. Determine the condition of the bearing by listening for noises that indicate excessive wear, measuring the bearing’s operating temperature, and using a predictive maintenance technique such as vibration analysis or oil analysis. Lubricate bearings according to the pump manufacturer’s instructions; replace them if necessary.
• Motor/Pump Alignment. Determine if motor/pump alignment is within the service limits of the pump.
• Motor Condition. Check the integrity of motor winding insulation. These tests usually measure insulation resistance at a certain voltage or the rate at which an applied voltage decays across the insulation. A vibration analysis can also indicate certain conditions within motor windings and lead to early detection of developing problems.
News Orther :

Search