Control Most plants strive to operate their compressed air system at elevated pressures – to protect against periods of peak air demand that cause the plant pressure to fall. As a result, the header pressure fluctuates widely causing problems with production equipment and processes. The Quincy QSPC Steady Pressure Control is a highly engineered pressure/flow controller, designed to put an end to fluctuating header pressure.

The Quincy QSPC has the unique ability to automatically fine tune itself to optimize plant pressure. This means that the Quincy QSPC steadies plant header pressure, reduces air usage, and limits the number of compressors needed on-line – all of which results in increased production, higher quality products, improved process control, and reduced operating costs.

Standard Features

• Large, fail-open, single valve design for maximum reliability
• 1 psi or less pressure drop at highest flow rating for maximum efficiency
• Built-in bypass piping with isolation valves for simplified installation
• Large, color-coded valve position indicator
• Convenient, dual digital display shows both actual system pressure and pressure set point
• Straight through flow path on the primary valve.
• All welded construction improves the appearance and eliminates pressure drop through fittings.
• Longer radius elbows are used for the by-pass to improve performance.
• Electronic controller used in the package has national distribution with excellent local support, if needed.
• I-P transducer is positioner mounted so the signal between the control panel and the positioner will be electronic instead of pneumatic for faster response.

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The demand controller is installed downstream of a large supply side pressure vessel to accurately control the pressure to the demand side of the plant. This configuration allows compressors to run at a pressure where they are most efficient and handle the base load requirement for the plant while the usable storage (potential energy) created by the supply/demand differential handles peaks in demand. All other air compressors can be shut down. The demand controller responds much faster than compressor controls to changes in plant pressure so large demand side pressure swings are eliminated. Higher pressure causes the system to use more air so controlling pressure swings will eliminate this artificial demand. Air to the plant is also cleaner because of the lower velocity through the clean-up equipment. Fewer compressors on line, reduced air usage, cleaner air, and steady plant pressure, result in much lower operating cost, better process control, and higher quality products.

Model List

Engineered for your compressed air system, Quincy’s complete line of analysis services and compressed air products will optimize your system. Whether you’re installing a new compressed air system – or upgrading your existing system – every Quincy component has been designed for maximum productivity. Backed by Quincy innovation and reliability – let Air Perfection Inc. work for you. Please review the Quincy QSPC brochure by clicking here (222K PDF file) and contact the sales team at Air Perfection Inc. should you have any questions. Click here to visit our sales department online.