Ruhrpumpen’s Spotlight

This project consists of an ETL-listed pre-engineered fire protection package designed to deliver a rated capacity of 1,000 GPM at approximately 100 psi, supplied as a complete pump house system integrating an electric motor–driven fire pump, a diesel engine–driven fire pump, and a jockey pump. The packaged system is designed for a maximum working pressure of 250 psi and includes common power distribution at 480 VAC / 60 Hz, with structural welding performed in accordance with AWS D1.1 standards. The prefabricated pump house package measures approximately 370 in. in length, 116 in. in width, and 120 in. in height, providing a compact and fully integrated fire protection solution.

The electric fire pump is based on a BB1 horizontal split-case pump (HSD 8×6×9) designed according to Hydraulic Institute standards and constructed with duplex materials and a Nitronic 50 shaft to provide enhanced corrosion resistance and mechanical reliability. The pump is rated for 1,000 GPM at 100 psi and includes 150# RF suction and discharge flanges, grease-lubricated bearings, standard packing with an internal recirculation seal plan, and NFPA 20–compliant accessories such as pressure gauges, air release valves, and a pressure relief valve. The unit is driven by a UL-listed 100 HP electric motor operating at 3600 RPM, 480 V, 3-phase, TEFC enclosure, and coupled through a flexible UL-listed coupling mounted on a steel baseplate.

The diesel fire pump system utilizes a ZW 8×5×12 horizontal split-case pump (BB1 type) constructed with duplex casing and impeller materials, Nitronic 50 shafting, and 300# RF flanged connections. The pump operates at the same 1,000 GPM capacity with approximately 100 psi discharge pressure, and incorporates grease-lubricated bearing housings, packing seals with recirculation flush plan, hose valve header connections, and UL/FM-approved accessories including a main relief valve, air release and vacuum breaker valve, waste cone, and FM-approved flow meter. The pump is driven by a UL/FM-approved diesel engine rated at 130 HP at 2350 RPM, configured with tropicalization protection, flexible exhaust, cooling loop, jacket water heater, and a UL-142 listed double-wall diesel fuel tank with leak detection and associated accessories to meet fire protection and operational requirements in elevated temperature and altitude conditions.

Complementing the fire pump systems, the package includes a vertical inline jockey pump (CR series) rated at approximately 25 GPM at 147 psi, driven by a 3.7 kW electric motor at 3450 RPM, 460 V, 3-phase, used to maintain system pressure and minimize unnecessary fire pump starts. Control and operation of the system are managed through UL/FM-approved Tornatech fire pump controllers housed in NEMA 4X stainless steel enclosures, designed for high ambient temperatures and corrosive environments, and equipped with NFPA 20–compliant alarms, monitoring, and anti-condensation protection.

The system also includes certified instrumentation, pressure and compound gauges with Monel internals, corrosion-resistant coatings rated for C5 environments, and comprehensive testing such as hydraulic performance testing, hydrostatic testing, and rotor balancing to ensure long-term reliability and compliance with fire protection standards.

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