Why use an OEM for centrifugal pump repairs?

Centrifugal pump OEMs declare they provide better parts, service, response and value than aftermarket service corporations, however that isn’t at all times the case.
Until the early Nineties, OEM restore centers labored solely on their products, espousing the mantra, “We know our products greatest.” During the ‘90s, a lower in new product gross sales caused OEMs to vary their story and boast that their shops might work on any model of centrifugal pump. Suddenly, their specific product information utilized to all centrifugal pumps.
According to the net magazine, World Pumps, six of the main U.S. centrifugal pump manufacturers of the 1980s have been consolidated into one, Flowserve. Many U.S. legacy manufacturers are nonetheless manufactured by Flowserve. During the many mergers and acquisitions, the us Department of Justice compelled the sale of some manufacturers to other manufacturers. Products had been disassociated from their designers.
Before the good consolidation, each OEM had a chief engineer and a quantity of other product designers who employed a holistic design process, which considered the entire product, the interplay of its various components, the user’s software and trade specifications. When a person had a big drawback, the chief engineer was referred to as to kind it out. The lessons realized have been integrated into future designs and centrifugal pumps evolved over a few 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 usually costly experiences. API 610 captures solutions to common centrifugal pump design points and best-in-class design features.
Computers loaded with wonderful software program have democratized engineering. When I was a design engineering supervisor at Pacific Pumps, I had physicists, mathematicians, metallurgists, engineers, drafters, document managers and a big staff of people to create and distribute microfilm. In the early Nineteen Eighties, we added a Fortran programmer to our employees. Today, that expertise and heaps of talent units are on my desktop. Integral calculus is finished with a click on in MathCAD. Finite element analysis of constructions, strain vessels and even shaft keyways are built-in into our stable modelers. Hydraulic part design software program feeds computational fluid dynamics analysis packages, lowering hydraulic design risk. Rotordynamic analysis software program coupled with structural evaluation instruments solves — and hopefully prevents — vibration points.
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 subsequent week. It can produce a 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 high fidelity, reasonable price and fast delivery in most any metal.
Conhagen has evolved from a restore shop to a manufacturer that designs new centrifugal pumps or modifies current pumps for particular functions. เครื่องมือใช้วัดความดัน present the necessary hydraulic performance and mechanical robustness to reduce the whole cost of ownership. Two examples of case replacements are included in this editorial — a 4 stage, axial cut up, 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 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 products embody detailed engineering calculations, manufacturing drawings, installation, operation and maintenance manuals, a one-year operation warranty and assist for management of change stories. It is sufficiently big to be responsible, but sufficiently small to be responsive.
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