Why use an OEM for centrifugal pump repairs?

Centrifugal pump OEMs declare they supply better components, service, response and value than aftermarket service firms, however that isn’t at all times the case.
Until the early Nineteen Nineties, OEM repair facilities labored exclusively on their merchandise, espousing the mantra, “We know our products best.” During the ‘90s, a decrease in new product gross sales caused OEMs to alter their story and boast that their outlets may work on any brand of centrifugal pump. Suddenly, their particular product data applied to all centrifugal pumps.
According to the net magazine, World Pumps, six of the most important U.S. centrifugal pump producers of the Eighties have been consolidated into one, Flowserve. Many U.S. legacy brands are still manufactured by Flowserve. During the many mergers and acquisitions, the U.S. Department of Justice pressured the sale of some brands to other manufacturers. Products had been disassociated from their designers.
Before the nice consolidation, every OEM had a chief engineer and several other product designers who employed a holistic design process, which thought-about the whole product, the interaction of its various elements, the user’s application and industry specifications. When a person had a major problem, the chief engineer was referred to as to sort it out. The lessons learned had been included into future designs and centrifugal pumps advanced over a few years.
Industry standards, API 610 in particular, had been developed by customers to simplify procurement of high quality gear and to improve pump reliability. It is a compendium of users’ experiences, that are usually expensive experiences. API 610 captures solutions to frequent centrifugal pump design points and best-in-class design options.
Computers loaded with amazing software have democratized engineering. When I was a design engineering supervisor at Pacific Pumps, I had physicists, mathematicians, metallurgists, engineers, drafters, document managers and a large staff of individuals to create and distribute microfilm. In the early Nineteen Eighties, we added a Fortran programmer to our employees. Today, that talent and tons of skill units are on my desktop. Integral calculus is finished with a click in MathCAD. Finite factor evaluation of constructions, pressure vessels and even shaft keyways are built-in into our stable modelers. Hydraulic element design software feeds computational fluid dynamics evaluation applications, reducing hydraulic design risk. Rotordynamic evaluation software program coupled with structural evaluation tools solves — and hopefully prevents — vibration issues.
3D optical scanners and laser trackers present accurate models of complicated shapes. Conhagen can duplicate any pump case in one afternoon and improve it by the following week. เกจวัดแรงดันน้ำมันเครื่อง can produce a new case or impeller casting in 5 – 6 weeks. The development of patternless molds — 3D printed sand molds — was the game changer for Conhagen, yielding excessive constancy, cheap cost and fast supply in most any metallic.
Conhagen has developed from a restore shop to a manufacturer that designs new centrifugal pumps or modifies present pumps for specific purposes. Unique designs present the mandatory hydraulic efficiency and mechanical robustness to attenuate the whole cost of possession. Two examples of case replacements are included in this editorial — a 4 stage, axial cut up, boiler feed pump’s carbon steel case was changed with a CA6NM casting. The second instance is a single stage between a bearings pump that suffered rotor dynamics issues. 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 enterprise for 80 years. Its merchandise include detailed engineering calculations, manufacturing drawings, set up, operation and maintenance manuals, a one-year operation warranty and help for management of change reports. It is large enough to be responsible, yet small enough to be responsive.

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