Valves Repairing and Servicing

1. Overhaul - Examples of the scope of work would include:

• Visual inspection for corrosion and damage of all external and internal surfaces

• Undertake a pressure test to determine if lifting / operating correctly

• Strip down valve taking measurements if appropriate of “as found setting”

• Refurbishment of internal parts to ensure correct operation

• Replacement of any damaged or suspect parts

• Minimal amount of lapping to return sealing faces / plug to true

• Re-build to appropriate standards utilising new packing / gaskets as required

• Pressure test / Bubble test / Seat leakage test

• Traceable certificate

2. Re-test / Recalibration / Recertify Services

3.  Cleaning & degreasing

4.  Liaise with 3rd Party inspectors if required 

 

Complete service reports provided to satisfy customer and authorized inspector/insurance company requirements.

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Servicing of Flame Arrestors and Breather valves

Inspection and maintenance of flame arresters and Breather Valves.

 

We do Periodic inspection and maintenance, including flame arrestor cleaning or replacing the element, is essential to ensure continued safe operation of the flame arrester.

If an explosion is known, or believed, to have occurred then the flame arrester should be inspected for signs of damage. Damaged elements will be replaced immediately.

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Any build-up of solid particulate matter or liquids on the element will impair process flow and increase pressure drop. The routine maintenance interval must be determined by the user and will usually be decided by the rate at which a gradual reduction in flow capacity, or increase in pressure drop, occurs across the arrester. Elements must be thoroughly cleaned and inspected for damage before being replaced. While flame arrestor cleaning methods are dependent upon the nature of the material that is fouling the element, typical methods include:

• Brushing

• Caustic wash

• Drainage (in the event of liquid entrainment)

• Solvent wash

• Steam cleaning

• Ultrasonics

• Water wash