Why use an OEM for centrifugal pump repairs?

Centrifugal pump OEMs declare they supply better parts, service, response and worth than aftermarket service corporations, however that isn’t all the time the case.
Until the early Nineties, OEM restore facilities worked completely on their merchandise, espousing the mantra, “We know our products finest.” During the ‘90s, a decrease in new product gross sales triggered OEMs to change their story and boast that their shops could work on any brand of centrifugal pump. Suddenly, their specific product data applied to all centrifugal pumps.
According to the net journal, World Pumps, six of the most important U.S. centrifugal pump manufacturers of the Nineteen Eighties have been consolidated into one, Flowserve. Many U.S. legacy brands are nonetheless manufactured by Flowserve. During the various mergers and acquisitions, the united states Department of Justice compelled the sale of some brands to other producers. Products have been disassociated from their designers.
Before the great consolidation, each OEM had a chief engineer and a variety of other product designers who employed a holistic design course of, which considered the whole product, the interplay of its numerous parts, the user’s application and business specifications. When a person had a big downside, the chief engineer was known as to kind it out. The lessons discovered were included into future designs and centrifugal pumps advanced over a few years.
Industry standards, API 610 particularly, have been developed by customers to simplify procurement of high quality tools and to improve pump reliability. It is a compendium of users’ experiences, that are usually costly experiences. API 610 captures options to widespread centrifugal pump design points and best-in-class design options.
Computers loaded with amazing software program have democratized engineering. When เกจวัดแรงดัน was a design engineering manager at Pacific Pumps, I had physicists, mathematicians, metallurgists, engineers, drafters, document managers and a big staff of individuals to create and distribute microfilm. In the early 1980s, we added a Fortran programmer to our workers. Today, that talent and heaps of talent units are on my desktop. Integral calculus is done with a click in MathCAD. Finite component analysis of constructions, pressure vessels and even shaft keyways are integrated into our solid modelers. Hydraulic element design software feeds computational fluid dynamics evaluation applications, reducing hydraulic design danger. Rotordynamic evaluation software coupled with structural evaluation tools solves — and hopefully prevents — vibration points.
3D optical scanners and laser trackers present correct fashions of complicated shapes. Conhagen can duplicate any pump case in one afternoon and enhance it by the next week. It can produce a new case or impeller casting in five or six weeks. The improvement of patternless molds — 3D printed sand molds — was the game changer for Conhagen, yielding high constancy, cheap value and fast supply in most any steel.
Conhagen has evolved from a repair store to a manufacturer that designs new centrifugal pumps or modifies existing pumps for particular applications. Unique designs present the mandatory hydraulic performance and mechanical robustness to minimize the total cost of ownership. Two examples of case replacements are included in this editorial — a 4 stage, axial cut up, boiler feed pump’s carbon metal 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 new case, shortening the space between bearings from 37 3/4 inches to 30 5/8 inches.
Conhagen has been in business for 80 years. Its products include detailed engineering calculations, manufacturing drawings, set up, operation and maintenance manuals, a one-year operation guarantee and help for administration of change reports. It is sufficiently big to be responsible, yet sufficiently small to be responsive.

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