Centrifugal pump OEMs declare they provide better elements, service, response and worth than aftermarket service firms, however that isn’t always the case.
Until the early 1990s, OEM repair facilities worked exclusively on their products, espousing the mantra, “We know our products finest.” During the ‘90s, a decrease in new product gross sales caused OEMs to change 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 journal, World Pumps, six of the main 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 many mergers and acquisitions, the us Department of Justice compelled the sale of some brands to different producers. Products have been disassociated from their designers.
Before the good consolidation, every OEM had a chief engineer and a variety of other product designers who employed a holistic design course of, which thought-about the whole product, the interaction of its numerous elements, the user’s application and business specifications. When a user had a significant problem, the chief engineer was called to sort it out. The lessons discovered were integrated into future designs and centrifugal pumps evolved over many years.
Industry standards, API 610 in particular, had been developed by users to simplify procurement of high quality tools and to enhance pump reliability. ราคาเกจวัดแรงดัน is a compendium of users’ experiences, that are usually expensive experiences. API 610 captures options to frequent centrifugal pump design points and best-in-class design features.
Computers loaded with superb software have democratized engineering. When I was a design engineering manager 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 1980s, we added a Fortran programmer to our staff. Today, that talent and many ability sets are on my desktop. Integral calculus is completed with a click in MathCAD. Finite element evaluation of buildings, strain vessels and even shaft keyways are built-in into our solid modelers. Hydraulic component design software feeds computational fluid dynamics analysis applications, reducing hydraulic design danger. Rotordynamic analysis software coupled with structural analysis instruments solves — and hopefully prevents — vibration issues.
3D optical scanners and laser trackers provide accurate fashions of complicated shapes. pressure gauge ด้าน ดูด can duplicate any pump case in a single afternoon and enhance it by the subsequent week. It can produce a new case or impeller casting in 5 – 6 weeks. The improvement of patternless molds — 3D printed sand molds — was the sport changer for Conhagen, yielding high constancy, reasonable cost and quick supply in most any metal.
Conhagen has developed from a repair shop to a manufacturer that designs new centrifugal pumps or modifies existing pumps for specific purposes. Unique designs present the necessary hydraulic performance and mechanical robustness to attenuate the whole cost of possession. Two examples of case replacements are included on this editorial — a 4 stage, axial cut up, boiler feed pump’s carbon steel case was replaced 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 model 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 merchandise embody detailed engineering calculations, manufacturing drawings, installation, operation and upkeep manuals, a one-year operation warranty and support for management of change stories. It is big enough to be accountable, yet small enough to be responsive.
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