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With over 40 authorised and audited Refurbishment Service Centres globally, the Derby Service Centre (UK) is the largest Service Centre and corporate blueprint. This large 5,435ft2 dedicated facility is certified to ISO 9001 (Quality), ISO 14001 (Environmental) & OHSAS 18001 (Occupational Health & Safety) and the Investors in People Standard. Like all repair facilities, it is staffed by fully trained and experienced mechanical seal engineers and technicians. CAD, CAM, CNC machining and knowledge management systems are used extensively to provide a competitively priced, high-quality and rapid response.

Helping to protect the environment and saving money,AESSEAL® mechanical seal refurbishment aims to extend product life cycle for both AESSEAL® and competitor's products. Ever wondered what happens to a seal as part of the refurbishment process? Dependent on the seal type and its condition, the process can encompass the following operations:
 
  Book in, decontaminate and disassemble
Seals are booked onto an integrated electronic administration system. This ensures accurate scheduling and localised reporting for each core operation. In addition to decontamination undertaken by the end-user, seals are decontaminated in accordance with International Standards for the handling of any substances hazardous to health and carefully disassembled. Components are then thoroughly cleaned in preparation for Technical Assessment.
 
 

 Technical assessment
The assessment process is designed primarily to determine which components require refurbishment or replacement. This process also determines the materials of construction and requires a thorough understanding of seal construction, operation and application.
 Commercial assessment

The repair work, dictated by the Technical assessment stage is evaluated commercially.The automated commercial operation takes into account the source of supply, cost and lead-time in order to generate an electronic quotation (in the case of competitor's products).
 

 Reverse engineering  
Components requiring replacement are subject to detailed measurement using a combination of methods including co-ordinate measuring technology. Known standards are applied to compensate for component wear and damage. This is subsequently assessed by an Engineering Draughtsman in order to produce a 3D model.
 Manufacturing drawing
Components requiring re-manufacture are 3D modelled using a
state-of-the-art Computer Aided Design system. This is linked to the Company's Corporate Product Data Management System, which ensures full traceability. If required, Finite Element Analysis can be undertaken.

 

 

  Component manufacture
Comprehensive investment in inventory and machinery enables manufacture and refurbishment of components from a range of materials including standard and exotic metallics, plastics, PTFE and Carbon. Diamond grinding facilities are available for hard face materials, such as ceramics and carbides. Diamond lapping equipment enables the lapping of seal faces up to a diameter of 34 . Multi-axis CNC machine tools are used to machine complex components providing an automated solution from CAD to CAM.
    Assembly and test

The repaired seal is assembled with reference to documented procedures. Once assembled, the mechanical seal is pressure tested in-line with Corporate Standards or as per specific instructions.

Want to know more? We hope so!
For further information, please contact your nearest AESSEAL® representative (select the' Repair Locations' link above or email sealrepairexcellence@aesseal.co.uk. Why not arrange a visit and learn first hand why refurbishment is commercially and environmentally beneficial.
 

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