Product Overview
The KF5/315H10BPOA0DP1/197 is a highly representative high-pressure external gear pump from KRACHT‘s KF series, featuring a displacement of 315 cm³/rev. It is widely used in wind turbine gearbox lubrication systems, marine gearbox pre-lubrication, and diesel engine lubrication systems.
The KF series covers multiple frame sizes from KF0 to KF6, with displacements ranging from 2.5 to 3,150 cm³/rev and operating pressures up to 25 bar. The KF5 series includes models KF5/200, KF5/250, KF5/315, and others. This series features helical gear engagement with special gear geometry design, effectively reducing noise and pressure pulsation for low-pulse delivery.
As a professional hydraulic component manufacturer, we provide 100% interchangeable replacement solutions for the KRACHT KF series. Every KF series gear pump undergoes 100% performance testing under simulated actual operating conditions—from displacement accuracy and pressure stability to volumetric efficiency—fully benchmarked against KRACHT original equipment standards.
Model Code KF5/315H10BPOA0DP1/197 Breakdown:
KF: Product series—KRACHT gear pump
5: Frame size (KF5 series)
315: Theoretical displacement 315 cm³/rev
H10B: Mounting flange type and shaft configuration code
POA: Seal and special options code
0DP1: Port configuration code
/197: Customer-specific/special configuration code
Technical Specifications
KF5/315H10BPOA0DP1/197
Brand: KRACHT (Germany)
Series: KF5 High-Pressure External Gear Pump
Theoretical Displacement: 315 cm³/rev
Operating Pressure: Up to 25 bar
Flow Range: 2.5 – 3,150 cm³/rev
Medium Temperature Range: -40°C to +200°C
Control Type: External gear pump, fixed displacement
Gear Type: Helical Gears
Rotation Direction: Clockwise (viewed from shaft end)
Housing Material: Grey cast iron (EN-GJL-250 / GG 25)
Gear Material: Steel 1.7139 (case-hardened steel)
Plain Bearing Material: DU material (multi-layer friction bearing P10, DP4)
Shaft Seals: NBR / FKM / PTFE / EPDM optional
O-Rings: NBR / FKM / PTFE / EPDM optional
Pressure Pulsation: < 1%
Self-Priming: Yes
Mounting: Flexible, supports any mounting position
Weight: 36.0 kg
KP Series (High-Pressure Gear Pump) Reference Specifications
KP0 Series: Displacement 1.4–8 cm³/rev, pressure 280 bar, max speed 4,000 rpm
KP1 Series: Displacement 1.5–22 cm³/rev
KP2 Series: Displacement 20–62 cm³/rev
KP3 Series: Displacement 58–125 cm³/rev
KP5 Series: Displacement 160–300 cm³/rev, pressure 315 bar
Temperature Range: -20°C to +150°C
Maximum Pressure: 300–315 bar
Important Note: The KF series is designed for low-pressure, high-displacement transfer applications (up to 25 bar), while the KP series is designed for high-pressure, low-displacement applications (up to 315 bar). The above specifications are compiled from KRACHT official technical documentation and publicly available industry data. Different suffix codes represent different mounting flanges, shaft configurations, and seal specifications. Please refer to the product nameplate or technical agreement for exact specifications.
Key Technical Advantages
1. Helical Gearing + Optimized Gear Geometry — Ultra-Low Noise and Low Pulsation
The KF5/315 series features helical gearing combined with specially optimized gear geometry. Compared to spur gear pumps, helical gears offer higher contact ratio and smoother transmission, fundamentally suppressing pressure pulsation and noise generation. Measured outlet pressure pulsation is controlled within 1%, achieving low-pulse delivery.
2. High-Strength Materials + DU Plain Bearings — Exceptional Durability
Gear units are manufactured from 1.7139 steel (high-strength case-hardened steel) , with pump housings and covers in EN-GJL-250 (GG 25) grey cast iron or EN-GJS-400-15 (GGG 40) ductile iron (available upon request). The bearing system utilizes DU material (multi-layer friction bearings P10, DP4) , offering excellent self-lubricating properties and wear resistance that significantly extend pump service life.
3. Ultra-Wide Temperature Range — -40°C to +200°C
The KF5/315 series handles an exceptionally wide medium temperature range from -40°C to +200°C. This characteristic makes it particularly suitable for demanding applications with extreme temperature variations, such as wind turbine gearbox lubrication. It also handles a wide viscosity range of lubricating oils, hydraulic oils, and other media.
4. Flexible Mounting + Self-Priming Capability — Wide Applicability
The KF5/315 series pump features self-priming capability and supports any mounting position. This greatly facilitates system integration and on-site layout, particularly suitable for space-constrained applications such as wind turbine and marine systems.
5. Pulsation Damping Capability — Superior System Stability
The KF5/315 series is driven by an independent motor, effectively damping upstream pressure pulsation and flow fluctuations. In applications such as extrusion production lines, this pump improves flow output speed and reduces material shear and residence time in the extruder.
Application Areas
Wind Turbine Gearbox Lubrication Systems: Pre-lubrication and main lubrication for wind turbine gearboxes
Marine Gearbox Lubrication: Pre-lubrication and main lubrication for marine gearboxes
Diesel Engine Lubrication: Lubricating oil supply for diesel engines
Engine & Compressor Lubrication: Lubricating oil supply for engines and compressors
Filtration System Oil Transfer: Oil circulation and transfer in filtration systems
Fuel Transfer: Various fuel transfer applications
Industrial Lubrication Systems: Lubricating oil transfer for various industrial lubrication applications
Expert Maintenance Tips
1. Verify Rotation Direction
The pump must only be operated in the specified rotation direction. Always verify that the rotation direction marked on the nameplate matches the drive motor’s rotation before installation. Reverse operation is strictly prohibited—this will damage the shaft seal.
2. Never Run Dry
Avoid dry running under all circumstances. The fluid should have basic lubricating properties, contain no solid contaminants, and be chemically compatible. Ensure the pump cavity is fully primed before startup; otherwise, severe wear of gears and plain bearings may occur.
3. Safety Valve Usage Guidelines
The integrated safety valve on the pump is designed for short-term operation only as a safety valve. For prolonged bypass flow operation, a separate relief valve must be installed independently, directing the bypassed oil directly back to the tank.
4. Medium Cleanliness and Compatibility Requirements
The pumped medium must have basic lubricating properties, contain no solid contaminants, and be chemically compatible with pump materials. Install appropriately rated filters on the pump suction side and regularly inspect filter element condition.
5. Temperature Management
The KF5/315 series operating temperature range is -40°C to +200°C. Seal material selection should be based on actual operating temperature—NBR for standard ranges, FKM for high-temperature applications, and EPDM for specific chemical media environments.
6. Regular Inspection and Maintenance
Regularly inspect the system filter element condition. Regularly monitor the pump for abnormal operating noise—if abnormal noise or system pressure drop is detected, shut down immediately for inspection. DU plain bearings offer self-lubricating properties, but medium cleanliness is essential to maximize service life.
