Spare Parts Concept

Seals in valves, pumps, vessels, or heat exchangers are wear parts that must be replaced or inspected at the latest during equipment overhauls. Depending on operating conditions, however, a number of other components may also show wear.
EIT GmbH has therefore developed a spare parts concept that goes beyond the exclusive focus on seals and also addresses the replacement or refurbishment of these additional components.

Replacement Materials


During the overhaul of pumps or valves, packings and gaskets are normally always replaced. Mechanical seals are inspected and then either repaired or replaced.


In many cases, however, it is only after disassembly that it becomes clear which additional components must be replaced. 


These include:

  • Bearings
  • Connecting elements
  • Small parts (cotter pins, washers, etc.)

Many of these consumable materials are kept in stock by our company or by our cooperation partners.

Refurbishment


Components that are only worn at functional areas can often be refurbished by weld build-up of the worn sections. This applies, for example, to industrial knives or cutting tools in the wood or paper industry, worn shafts with localized wear, impellers of pumps, and similar parts.



In many cases, it is possible to achieve a longer service life for the refurbished component compared to the original part by hardening the functional surfaces.


The same principle also applies for protection against corrosion.

New Manufacturing / Engineering Adaptation


The production of a completely new component is advisable if the original part is unavailable, only obtainable with unsatisfactory delivery times, or only at excessive cost.


In addition, newly manufactured parts can be adapted in their design to the specific application. Examples include welded constructions as replacements for cast components, application of wear-protection layers at potential wear zones, or modification of dimensions depending on the expected load.


The adjacent image shows a spindle penetration for valve actuation on a tanker vessel, designed to meet TA-Luft requirements and seawater resistance. The delivery time from order acceptance through design, manufacturing, and final inspection took only 4 weeks.