The Ingersoll Rand 7100v bare piston compressor pump was most commonly used on the Ingersoll Rand 7100E15V and 7100E15VP 15hp reciprocating compressor. This pump was specifically meant to be used with compressors that operate on/off if a pressure switch unloader. If instead your compressor operates in a constant run mode, you would want to purchase 7100 / 18002436
The 7100v bare pump has a 100% cast iron frame and is designed to support the overhung crankshaft. Cylinders bolt directly to the cast iron frame. The frame is completely sealed yet allows for maximum accessibility. The pistons are precision balanced low pressure aluminum and high pressure cast iron pistons provide smooth operation. There are four piston rings for sealing compression and oil control. The taper faced compression ring and beveled oil scraper ring provide quick seating. Two, three-piece oil control rings maintain proper lubrication on cylinder wall. Precision honing used in conjunction with the ring stack up means low oil carryover.
For additional cooling and longevity, a three piece intercooler is pre-installed on the pump. The intercooler between stages is of finned copper tube construction to provide maximum cooling area. It is located directly in the flywheel to remove the heat of compression between stages. This keeps running temperatures and power needs to a minimum, ensuring high air delivery for horsepower expended. The intercooler is provided with a relief valve to prevent over-pressurization.
The internal Ingersoll Rand part number for this compressor pump is 18002451. This pump does not include a low oil switch or integrated head unloaders.
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