Why use an OEM for centrifugal pump repairs?

Centrifugal pump OEMs claim they supply higher parts, service, response and value than aftermarket service corporations, however that isn’t always the case.
Until the early Nineteen Nineties, OEM restore facilities worked solely on their products, espousing the mantra, “We know our merchandise finest.” During the ‘90s, a lower in new product sales caused OEMs to vary their story and boast that their outlets could work on any brand of centrifugal pump. Suddenly, their particular product information applied to all centrifugal pumps.
According to the web magazine, World Pumps, six of the major U.S. centrifugal pump producers of the 1980s have been consolidated into one, Flowserve. Many U.S. legacy brands are still manufactured by Flowserve. During the numerous mergers and acquisitions, the U.S. Department of Justice compelled the sale of some brands to different producers. Products had been disassociated from their designers.
Before the good consolidation, every OEM had a chief engineer and several product designers who employed a holistic design course of, which considered the entire product, the interaction of its various components, the user’s application and industry specs. When a consumer had a big drawback, the chief engineer was known as to type it out. The lessons realized were integrated into future designs and centrifugal pumps developed over many years.
Industry requirements, API 610 specifically, had been developed by customers to simplify procurement of high quality tools and to enhance pump reliability. It is a compendium of users’ experiences, which are often expensive experiences. API 610 captures options to frequent centrifugal pump design issues and best-in-class design options.
Computers loaded with amazing software have democratized engineering. When I was a design engineering manager at Pacific Pumps, I had physicists, mathematicians, metallurgists, engineers, drafters, doc managers and a big team of people to create and distribute microfilm. In the early 1980s, we added a Fortran programmer to our employees. Today, that expertise and a lot of skill units are on my desktop. Integral calculus is completed with a click on in MathCAD. Finite factor analysis of constructions, pressure vessels and even shaft keyways are integrated into our strong modelers. Hydraulic component design software feeds computational fluid dynamics evaluation programs, reducing hydraulic design risk. Rotordynamic evaluation software program coupled with structural analysis instruments solves — and hopefully prevents — vibration points.
3D optical scanners and laser trackers provide correct models of advanced shapes. Conhagen can duplicate any pump case in one afternoon and enhance it by the next week. เกจวัดแรงดันเชื้อเพลิง can produce a brand new case or impeller casting in 5 or 6 weeks. The development of patternless molds — 3D printed sand molds — was the game changer for Conhagen, yielding excessive constancy, reasonable price and quick supply in most any metal.
Conhagen has advanced from a restore store to a producer that designs new centrifugal pumps or modifies current pumps for specific applications. Unique designs present the required hydraulic performance and mechanical robustness to attenuate the total cost of ownership. Two examples of case replacements are included on this editorial — a four stage, axial split, boiler feed pump’s carbon steel case was replaced with a CA6NM casting. The second example is a single stage between a bearings pump that suffered rotor dynamics points. Conhagen designed and manufactured a brand new case, shortening the space between bearings from 37 3/4 inches to 30 5/8 inches.
Conhagen has been in business for eighty years. Its products embrace detailed engineering calculations, manufacturing drawings, installation, operation and maintenance manuals, a one-year operation guarantee and support for administration of change stories. It is big enough to be accountable, yet sufficiently small to be responsive.
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