In addition to benefiting the environment, reduced energy use can also benefit a plant’s bottom line by limiting the costs associated with powering equipment. John Crane offers a wide variety of products custom engineered to use less energy, as well as a wealth of expertise in identifying retrofit, upgrade and conversion opportunities that help lower energy use — even in competitor equipment.
Serving the Energy Sector
We’ve been helping customers in the energy services sector reduce energy consumption for decades, which means we’re uniquely qualified to help optimize individual applications as well as entire systems, such as upstream oil and gas wells.
Using John Crane products — such as our gas-lubricated seals, patented lubrication systems, thermoplastic interstage seals and balance piston compressor seals — can help conserve energy and generate fuel savings in the driver by improving efficiency on all fronts. In one case, we were able to achieve a 3.1 percent increase in compressor flow and a 2.7 percent decrease in turbine steam consumption simply by replacing interstage aluminum seals with thermoplastic seals.
Working with OEMs
We also work directly with OEMs to custom design components that will meet their customers’ demands for reduced energy use. We draw on decades of applied engineering experience and the millions of our mechanical seals in use — to advise our customers of the most cost-effective ways to lower their energy costs. The simplest, most common way to reduce energy consumption is to replace soft-packed seals with modern mechanical seals, which can use as little as a tenth as much energy in some cases. Substituting laser-faced seals for plain-faced seals can further cut consumption by up to an additional 90 percent.
Reliability Support and Turbomachinery Service
Our Reliability Support service helps identify opportunities for energy conservation within the overall system, recommending options such as variable-speed drives or energy-efficient drives for pumps. And John Crane Turbomachinery Service engineers have years of experience finding ways to maximize industrial energy efficiency, even in challenging turbine environments. One of the most cost-effective ways to reduce energy consumption in these environments is to ensure proper shaft alignment. When combined with couplings that offer misalignment compensation at low restoring forces, as much as 5 percent energy savings can be achieved.
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