- Our Engineered Upgrades
- Hydraulic Modifications
- Mechanical Upgrades
- Composite Materials
Hydro has diversified and in-depth pump knowledge that we believe is unique in our industry. While OEM’s traditionally focused on repairing their own equipment, Hydro has from the outset developed a knowledge base that includes experience across a broad spectrum of pump manufacturers and pump designs.
We realized that as an independent company, we had the unique capability of understanding the different designs and materials employed by various OEM’s as well as their successes or failures in specific applications and operating environments. Based on this data, Hydro was in an excellent position to improve OEM designs for their intended service.
Our high rate of repeat business is a testimonial to the performance improvements that Hydro has been able to achieve.
Hydro is one of the only independent pump rebuilding companies with the in-house capability and experience to perform hydraulic design modifications and upgrades.
Many of the engineered pumps in operation today were designed and manufactured 30-40 years ago. Due to an increase in energy demand, these pumps are operating at higher flows, farther from their best efficiency point. As a result, the original impeller design and its hydraulic characteristics many no longer be as effective for the plant’s new requirements.
Hydro utilizes advanced hydraulic design software at its service centers to analyze and optimize a pump’s hydraulic performance, enabling us to develop and test new impeller designs in a much shorter time period that previous methods allowed. With a proven track record and 40 year history, we have an extensive drawing database and library with proven reverse engineered drawings.
Improving fits and tolerances can reduce pump vibration and extend a pump's mean time between repairs. Hydro will evaluate your individual pump to determine the possible benefits to be gained from a mechanical upgrade. Mechanical upgrades can be performed to reduce vibration, increase bearing and seal life, or reduce power consumption.
Our engineers review the design of your pump, check the existing geometry and make recommendations to change any of the variables which can affect your pump's strength and ability to meet performance requirements. Examples of mechanical upgrades include:
- Precision split rings
- Interference fits
- Establishing concentricities
- Establishing perpendicularities
An upgrade or change in metallurgy can extend a pump’s mean time between repairs. Hydro's engineering team will evaluate the metallurgy of your pump components and recommend material upgrades specific to your pump’s application.
Upgrades in metallurgy can:
- Improve a pump’s ability to withstand the corrosive or erosive effects of the liquid being pumped.
- Improve a component’s tensile strength and prevent premature failure.
- Improve a pump’s performance through reduced running clearances.
- Prevent pump seizures during dry run events.
Take advantage of the new technologies that have been developed since the time your pump was designed and manufactured. Review of a pump’s metallurgy can be an important part of developing a repair plan.
In addition to traditional metals, a range of composite materials is available; each of which address specific issues such as corrosion, erosion, clearances, and run-dry events.
One upgrade that Hydro often recommends is using composite materials for wear parts. By applying the appropriate material for the specific application, running clearances can be reduced as much as 50%. Tighter clearances result in a reduction of internal recirculation, providing equal flow with less horsepower. The reduction in horsepower in turn results in improved efficiency and reduced energy costs.
Some composite materials have a low coefficient of friction making them an ideal selection for pumps that occasionally run dry. When a run dry event occurs, metal wear parts can gall and seize the pumps. The non-galling characteristics of some composite materials are proven to result in longer run times and safer pump operation.