SCF125-80-250 UL/FM Horizontal Split Case Fire Pump 300–750 GPM Designed For NFPA 20 Fire Protection Systems

NMFIRE fire pump packages are manufactured through advanced hydraulic design, precision machining, and strict quality control processes to ensure reliable operation in critical fire protection applications.

Advanced Computational Fluid Dynamics (CFD) analysis and 3D hydraulic design are applied to optimize internal flow performance:

• Improved hydraulic efficiency
• Reduced hydraulic losses
• Lower required engine power
• Stable flow and pressure performance

Pump casing manufacturing adopts Lost Foam Casting Technology to improve surface quality and hydraulic performance. Manufacturing capabilities include:

• CNC processed metal patterns
• Automatic molding line
• Automatic sand processing production line
• Intermediate frequency melting furnace
• VOD refining furnace
• Precision wax casting technology

Critical components are processed through precision CNC machining. Quality control includes:

• Impeller machining and dimensional inspection
• Shaft machining and runout verification
• Assembly alignment verification
• Dynamic balancing test for all rotating components

Each NMFIRE fire pump package undergoes factory performance verification before delivery per NFPA 20 requirements. Testing includes:

• Shut-off (churn) pressure testing — must not exceed 140% of rated pressure
• Rated flow and rated pressure verification
• 150% rated flow verification — pressure must be ≥65% of rated pressure
• Pressure-flow curve recording (minimum 5 test points)
• Operating parameter monitoring (vibration, temperature, noise)

Our dedicated fire pump test bench enables:

• Accurate flow measurement via calibrated flow meter
• Pressure monitoring at suction and discharge
• Complete performance curve generation
• Third-party witness testing arrangement per project requirements

For seawater service, corrosion-resistant, or other special material requirements, please contact us to discuss.

Fire protection projects often require complete technical documents for consultant approval and installation. NMFIRE provides project-specific engineering support.

Available Documents:

• General Arrangement (GA) Drawing — dimensional layout with baseplate, pump, and engine
• Pump Performance Curve — factory test curve with rated, 150% flow, and shut-off points
• Technical Datasheet — complete pump specifications per project requirements
• Diesel Engine Datasheet — engine specs with altitude/temperature derating calculation
• Controller Datasheet — UL/FM listed fire pump controller specifications
• Factory Test Report — witnessed performance test results
• Installation, Operation & Maintenance (IOM) Manual
• UL/FM Certification Documents

For skid-mounted or containerized packages, controller layout can be included in the GA drawing upon request. For other special document requirements, please contact us to discuss.

Yes. NMFIRE fire pump packages are designed according to NFPA 20 requirements and available with UL Listed and FM Approved certification options. Each pump is factory performance tested per NFPA 20 including shut-off pressure verification (max 140% of rated), rated flow testing, and 150% rated flow verification at no less than 65% of rated pressure.

Horizontal split case pumps are bidirectional, easier to maintain (the upper casing half can be removed without disturbing piping connections), and typically used for medium to high flow applications. End suction pumps are more compact, suitable for space-limited installations, and generally more cost-effective for lower flow ranges. Both types are available with UL Listed and FM Approved certification per NFPA 20. Selection depends on project flow requirements, available space, and budget considerations.

NMFIRE offers horizontal split case and end suction pump types for diesel engine driven configurations. Vertical turbine pumps are also available for wet pit applications. All pump types are available with UL Listed and FM Approved certification. Complete packages include fire pump, diesel engine, controller, jockey pump, relief valve, fuel tank, and standard accessories per NFPA 20.

Yes. Technical documents including General Arrangement (GA) drawings, pump performance curves, technical datasheets, engine datasheets with derating calculations, controller datasheets, factory test reports, and installation manuals are available for project submission. Our engineering team provides project-specific submittal packages.

Yes. Factory inspection and third-party witness testing can be arranged according to project requirements. Our dedicated fire pump test facility enables accurate flow measurement, pressure monitoring, and complete performance curve generation. Third-party inspection agencies are welcome to participate in factory testing per project requirements.

Yes. Per NFPA 20 requirements, diesel engine power must be derated for altitude and ambient temperature at the installation site. Typically, engine power is reduced by approximately 3% per 300 meters (1000 ft) above sea level, and 1% per 5.5°C (10°F) above 25°C (77°F). NMFIRE engineering team calculates derating factors based on actual project site conditions to ensure the engine has sufficient standby power at the specified flow and pressure duty point.

NMFIRE offers single diesel, single electric, 1 electric + 1 diesel, 2 electric, and 2 diesel configurations. Material options include standard fresh water, corrosion resistant (stainless steel 316L), and seawater service (duplex stainless steel). Controller options include UL/FM listed diesel fire pump controllers compatible with the selected engine model. Containerized fire pump houses are also available for projects requiring pre-assembled, plug-and-play installation.