The best in Fire Pump Sales & Service

PAC Pump - The Best In Fire Pump Sales & Service


Have a question? Check below to review our frequently asked questions. If you cannot find an answer, we encourage you to contact us for further assistance.

What is the usual lead time for a new fire pump system?

Generally, our lead times run 5-8 weeks. If necessary, using Aurora's Red Hot Quick Ship Program (pdf), we can reduce lead times 2-3 weeks, or sometimes even 1 week. Please contact us for details.

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Are there used systems available?

No. Installing a used fire pump system can account for numerous liabilities and risks.

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Are single-phase fire pumps available?

We offer single-phase fire pump systems with motors that are 15 HP or less at 230 volts. These systems incur a modest increase in cost. Please contact us for details regarding single-phase fire pump systems.

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How do you determine the size of engines and motors for fire pumps?

All Aurora fire pumps are equipped with motors and engines that are sized to the specifications outlined in U.L., F.M. and NFPA 20 (2003). Each motor and engine used within a system is designed to function at any point of the fire pump curve, but does not surpass the engine size or motor nameplate service factor.

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What makes fire pumps unique from other types of pumps?

Fire pumps may look similar to other pumps, however, there are many differences that make fire pumps unique to the industry. Following are the standards, requirements and differences that make Aurora Fire Pumps specific to the fire protection industry.

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How do you determine pump rotation?

This is determined by the vantage point. When sitting on the motor facing the fire pump and the discharge is to the left and the suction is from the right, this is considered a right-hand or clock-wise pump; if opposite, it is considered a left-hand or counter-clockwise rotation pump.

Pump Rotation Diagram (pdf)

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Is there an alternative for a test header, such as a flow meter loop?

Yes, however, a flow meter loop will not test the water supply. If there was ever an obstruction to the water supply, it would have to be tested using hoses and Playpipes. We recommend using a flow meter loop when it is difficult for excessive water to flow through Playpipe nozzles.

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What is Net Positive Suction Head (NPSH) and does it apply to fire pumps?

Net Positive Suction Head (NPSH) does not apply to any reputable fire pump manufacturer. Since fire pumps are designed for a unique industry that requires them to work when needed, water must be delivered to the pump via gravity to ensure a pump prime at all times; using an artificial priming system does not guarantee pump function 100% of the time. Because just 3% of air into a pump's casing can cause it to be inoperable, manufacturers require a "flooded suction" at all times.

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Are relief valves necessary on diesel fire pumps?

Depending on the specific pump, it is not always necessary to have a main relief valve on a system. The NFPA outlines explicit requirements for overspeed shutdowns for "runaway engines" on diesel-driven fire pumps. Additionally, the fire pump industry is progressing to not using main relief valves. As a result, chum pressures and maximum expected static suction pressures must be calculated for each system. Please contact us for further information.

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