Practical Mechanical Sealing with Rotary, Pneumatic and Hydraulic Seal Types plus Gaskets

THE WORKSHOP

Whether you consider yourself an amateur or knowledgeable, practical or theoretical, you will find this mechanical seals workshop is jam-packed with useful, easy-to-apply information. Faced with the bewildering task of selecting the correct seal type and materials of construction for a given application, it's no wonder many end users leave the job to others. After attending this workshop, you will have the knowledge and confidence to select correct seal types, analyse failed seals, determine the cause/s of failure and propose practical, remedial action.

Learn how, with simple modifications, you can extend seal life and reduce or eliminate causes of premature seal failure. The workshop commences with a solid review of the fundamentals, basic principles and looks at seal classification and design. Special seal types are examined and the materials used to construct seals ranging from elastomeric materials to cemented carbides are examined.

WHAT IS INCLUDED?

  • Receive a certificate of attendance in support of your continuing professional commitment
  • All workshops include the associated hardcopy technical manual
  • Printed workshop handouts
  • Lunch and refreshments
  • Interact and network with workshop attendees and experienced instructors
  • Practical, industry driven content to assist you in your continuing professional development (CPD)
  • Attendees automatically become IDC subscribers and receive exclusive deals and technical content every month

WHO SHOULD ATTEND:

  • Consulting engineers
  • Design engineers
  • Environmental engineers
  • Facilities engineers and managers
  • Lubrication technicians
  • Maintenance personnel
  • Mechanical engineers and technicians
  • Operation, maintenance, inspection and repair managers, supervisors and engineers
  • Operators
  • Plant engineers, managers and supervisors
  • Plant operations and maintenance personnel
  • Predictive maintenance professionals
  • Process control engineers and supervisors
  • Process operators and technicians
  • Process technicians
  • Pump operators
  • Pump sales engineers
  • Pump service contractors
  • Rotating equipment engineers
  • Safety specialists
  • Sales engineers
  • Service contractors
  • Supervisors and foremen

Also anyone involved in maintenance who need or specifies, or uses mechanical seals.

CONTENT SUMMARY

FUNDAMENTALS AND PRINCIPLES

  • Definition of zero leakage
  • Mechanics of sealing
  • Leakage
  • Purpose of sealing
  • Basics regarding speed and pressure
  • Temperature considerations
  • Basic seal requirements
  • Seal friction
  • Wear and seal life
  • Texture

GENERAL AND SPECIAL SEAL TYPES

  • Static and dynamic seals
  • Special seal types
  • Bushing, labyrinth and diaphragm seals
  • Gas, motion, slurry seals
  • Carbon seals
  • Liquid ring and liquid barrier seals
  • Inflatable, ferrofluidic seals
  • Positive action type
  • Self-adhesive compression seals

MATERIALS OF SEAL CONSTRUCTION

  • Properties of elastomers
  • Elastomeric materials
  • Plastic polymers
  • Cemented carbides
  • Miscellaneous sealing materials

SEALS FOR SPECIFIC/SPECIAL APPLICATIONS

  • Hydraulic and pneumatic seals
  • Seals for special applications
  • Large diameter seals
  • High-speed sealing applications and requirements
  • Sources of excessive hydraulic pressure
  • Overcoming problems associated with high-pressure
  • Vacuum sealing applications

SEAL SELECTION, APPLICATION AND STANDARDS

  • Seal selection guides
  • Static and dynamic seal applications
  • Standards-ISO, British, DIN, ASME

MECHANICAL SEAL FUNDAMENTALS

  • Introduction and fundamentals
  • Sealing mechanism
  • Desirable features

SEAL DESIGN AND CLASSIFICATION

  • Identifying seal components and their function
  • Primary sealing components - seal head, seal seat, springs for face loading, metal bellows
  • Secondary sealing components-elastomeric O-rings, V-rings, U-cup rings, wedge rings
  • Seal types and arrangements
  • Sealing face conditions
  • Seal pre-loading
  • Seal balance and balance ratio
  • Pressure distribution

MECHANICAL SEAL MATERIALS

  • Desirable properties
  • General considerations
  • Suitable mating combinations

ENVIRONMENTAL CONSIDERATIONS AND CONTROL

  • Abrasives, heat, dry operation
  • Flushing, recirculation, quenching
  • Convection, cooling, jacketing
  • Buffer and barrier fluid
  • Dead end lubrication, grease packing, circulating face lubrication
  • API 610 and 682 environmental control schemes

AUXILIARY EQUIPMENT

  • Cyclone separators
  • Pressurisation units
  • Air-coolers and heat exchangers
  • Rotameters and flow controllers
  • Leakage detectors
  • Pressure-sensitive switches
  • Filters and strainers

SEAL STORAGE, HANDLING AND INSTALLATION

  • Seal storage and handling
  • Seal installation considerations
  • Seat squareness

MECHANICAL SEAL SELECTION AND STANDARDS

  • Selection considerations
  • Process liquid characteristics
  • Inboard vs outboard mounting
  • Rotating vs stationary seal ring
  • Face loading
  • Primary seal ring design
  • Secondary sealing devices
  • Seal selection rules
  • Mechanical seal standards

SEAL FAILURES

  • Factors influencing seal life
  • Factors affecting seal performance
  • Categorisation of failures
  • Seal malfunction and probable causes
  • Premature failure causes
  • Seal face symptoms
  • Friction and wear
  • Adhesion, abrasion, corrosion and surface fatigue

TROUBLESHOOTING FAILED SEALS

  • At the pumping site
  • At the equipment teardown
  • Leakage types
  • Discoloration, chipping, cracking, rubbing, elastomer swelling, stickiness, hardness – what do these mean?

HOW TO MAXIMISE MECHANICAL SEAL LIFE

  • Preparing the pump – mechanically, hydraulically
  • Controlling temperature in the stuffing box
  • Controlling pressure in the stuffing box
  • What seal to choose?
  • What face combination and elastomer?

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