Why use an OEM for centrifugal pump repairs?

Centrifugal pump OEMs declare they provide higher elements, service, response and worth than aftermarket service companies, however that isn’t always the case.
Until the early 1990s, OEM repair facilities labored exclusively on their merchandise, espousing the mantra, “We know our merchandise greatest.” During the ‘90s, a decrease in new product gross sales caused OEMs to vary their story and boast that their shops could work on any model of centrifugal pump. Suddenly, their specific product knowledge utilized to all centrifugal pumps.
According to the web magazine, World Pumps, six of the major U.S. centrifugal pump manufacturers of the Eighties have been consolidated into one, Flowserve. เกจวัดแรงดันลม10bar are still manufactured by Flowserve. During the many mergers and acquisitions, the us Department of Justice compelled the sale of some manufacturers to different manufacturers. Products have been disassociated from their designers.
Before the great consolidation, every OEM had a chief engineer and several product designers who employed a holistic design process, which thought-about the whole product, the interaction of its various components, the user’s software and business specifications. When a user had a major drawback, the chief engineer was referred to as to sort it out. The lessons learned were included into future designs and centrifugal pumps advanced over a few years.
Industry requirements, API 610 particularly, have been developed by customers to simplify procurement of quality tools and to improve pump reliability. It is a compendium of users’ experiences, which are usually costly experiences. ตัววัดแรงดันน้ำมัน to widespread centrifugal pump design points and best-in-class design features.
Computers loaded with superb software program have democratized engineering. When I was a design engineering manager at Pacific Pumps, I had physicists, mathematicians, metallurgists, engineers, drafters, doc managers and a large team of people to create and distribute microfilm. In the early Nineteen Eighties, we added a Fortran programmer to our employees. Today, that expertise and plenty of talent units are on my desktop. Integral calculus is completed with a click on in MathCAD. Finite component evaluation of structures, stress vessels and even shaft keyways are integrated into our strong modelers. Hydraulic component design software program feeds computational fluid dynamics analysis applications, reducing hydraulic design risk. Rotordynamic evaluation software coupled with structural evaluation tools solves — and hopefully prevents — vibration issues.
3D optical scanners and laser trackers provide correct models of complex shapes. Conhagen can duplicate any pump case in one afternoon and improve it by the next week. It can produce a brand new case or impeller casting in five or six weeks. The growth of patternless molds — 3D printed sand molds — was the game changer for Conhagen, yielding excessive constancy, affordable value and quick supply in most any metal.
Conhagen has evolved from a repair store to a producer that designs new centrifugal pumps or modifies present pumps for specific purposes. Unique designs provide the required hydraulic efficiency and mechanical robustness to reduce the entire cost of possession. Two examples of case replacements are included on this editorial — a 4 stage, axial break up, boiler feed pump’s carbon metal case was changed with a CA6NM casting. The second instance is a single stage between a bearings pump that suffered rotor dynamics points. Conhagen designed and manufactured a new case, shortening the distance between bearings from 37 3/4 inches to 30 5/8 inches.
Conhagen has been in enterprise for eighty years. Its merchandise include detailed engineering calculations, manufacturing drawings, set up, operation and maintenance manuals, a one-year operation guarantee and help for administration of change reviews. It is sufficiently big to be responsible, but small enough to be responsive.

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