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The First Pump® GHP & GHPP High-Pressure Gravel Pumps represent a breakthrough in high-pressure slurry handling, engineered to tackle the most demanding applications with unmatched durability and efficiency. Based on the proven GH heavy-duty gravel pump design, these pumps incorporate specialized high-pressure plates to deliver exceptional performance in abrasive environments. The GHP (rated at 2,500 kPa) excels in multi-stage coal reject backfill co-disposal, while the GHPP (rated at 2,100 kPa) is optimized for pumping iron ore tailings with low solids content. Both models are designed to handle continuous operation with highly abrasive slurries containing large particles, ensuring minimal downtime and reduced ownership costs.
Key Features & Design Innovations
Advanced Material Technology
Proprietary Alloys: Constructed with High-chrome A05, Super-chrome A61 and Ultra-chrome A14 alloys, these pumps offer superior abrasion resistance. The high chromium content (exceeding 26.5%) and Rockwell hardness (≥60 HRC) provide a service life 3–5 times longer than conventional steel pumps.
Unlined Design: The all-metal construction eliminates lining replacements, making them ideal for severe large-particle slurries in dredging, sand mining, and mineral processing.
High-Pressure Capability
GHP Pump: Rated for 2,500 kPa, it is engineered for high-head applications such as coal refuse backfill, where multi-stage pumping is required to handle challenging slurries.
GHPP Pump: Rated for 2,100 kPa, it is optimized for iron ore tailings and other low-solid-content slurries, ensuring consistent performance in demanding mining operations.
Hydraulic Efficiency
CFD-Optimized Design: Utilizes Computational Fluid Dynamics (CFD) analysis to refine impeller and casing geometry, reducing recirculation and enhancing flow efficiency.
4-Vane Closed Impeller: Maximizes solids handling (up to 203 mm particle size) while maintaining high volumetric efficiency.
Robust Construction
Reinforced Pump Body: Thick, sturdy bars and a one-piece casting provide structural integrity under extreme pressures, ensuring long-term reliability.
Auto Vacuum Priming System: Integrated skid base design simplifies installation and operation, reducing setup time.
Operational Advantages
Low Total Cost of Ownership
Grease-Lubricated Bearings: Heavy-duty taper roller bearings eliminate the need for oil recirculation systems, reducing maintenance complexity and costs.
Close-Tolerance Lantern Restrictor: Minimizes gland water usage, further lowering operational expenses.
Ease of Maintenance
Removable Shaft Sleeve: Hardened steel or ceramic-coated sleeves protect the shaft from abrasion and are easily replaceable.
Split Release Collar: Simplifies impeller removal on large-sized pumps, reducing downtime.
One-Piece Bearing Cartridge: Allows quick access to bearings for inspection or replacement.
Extended Service Life
Reduced Internal Velocities: Large casing volume and optimized hydraulic design minimize wear.
Side Sealing Vanes: Prevent solids intrusion into the gland area, extending seal life.
Heavy-Duty Shaft: Short overhang and large-diameter shaft reduce deflection, enhancing bearing durability.
Applications
Mining: Ideal for iron ore tailings, coal refuse backfill, and slag granulation.
Dredging: Handles abrasive slurries in inland dredging and tunneling projects.
Industrial: Suitable for high-pressure mine drainage, food processing (e.g., sugar beets), and industrial water management.
Technical Specifications
Parameter | GHP | GHPP |
Pressure Rating | 2,500 kPa | 2,100 kPa |
Flow Range | 180–5,800 m³/h | 180–5,800 m³/h |
Head | 20–85 m | 20–85 m |
Max Particle Size | 203 mm | 203 mm |
Wet-End Materials | High-chrome A05 / Super-chrome A61 / Ultra-chrome A14 | |
Shaft Seal Options | Gland Packing Seal / Expeller Seal / Mechanical Seal | |
The First Pump® GHP & GHPP High-Pressure Gravel Pumps set the industry standard for high-pressure slurry handling. With advanced materials, CFD-optimized hydraulics, and user-centric design, these pumps deliver unmatched reliability, efficiency, and cost savings in the most abrasive environments. Whether for mining, dredging, or industrial applications, they redefine performance in extreme conditions.
The First Pump® GHP & GHPP High-Pressure Gravel Pumps represent a breakthrough in high-pressure slurry handling, engineered to tackle the most demanding applications with unmatched durability and efficiency. Based on the proven GH heavy-duty gravel pump design, these pumps incorporate specialized high-pressure plates to deliver exceptional performance in abrasive environments. The GHP (rated at 2,500 kPa) excels in multi-stage coal reject backfill co-disposal, while the GHPP (rated at 2,100 kPa) is optimized for pumping iron ore tailings with low solids content. Both models are designed to handle continuous operation with highly abrasive slurries containing large particles, ensuring minimal downtime and reduced ownership costs.
Key Features & Design Innovations
Advanced Material Technology
Proprietary Alloys: Constructed with High-chrome A05, Super-chrome A61 and Ultra-chrome A14 alloys, these pumps offer superior abrasion resistance. The high chromium content (exceeding 26.5%) and Rockwell hardness (≥60 HRC) provide a service life 3–5 times longer than conventional steel pumps.
Unlined Design: The all-metal construction eliminates lining replacements, making them ideal for severe large-particle slurries in dredging, sand mining, and mineral processing.
High-Pressure Capability
GHP Pump: Rated for 2,500 kPa, it is engineered for high-head applications such as coal refuse backfill, where multi-stage pumping is required to handle challenging slurries.
GHPP Pump: Rated for 2,100 kPa, it is optimized for iron ore tailings and other low-solid-content slurries, ensuring consistent performance in demanding mining operations.
Hydraulic Efficiency
CFD-Optimized Design: Utilizes Computational Fluid Dynamics (CFD) analysis to refine impeller and casing geometry, reducing recirculation and enhancing flow efficiency.
4-Vane Closed Impeller: Maximizes solids handling (up to 203 mm particle size) while maintaining high volumetric efficiency.
Robust Construction
Reinforced Pump Body: Thick, sturdy bars and a one-piece casting provide structural integrity under extreme pressures, ensuring long-term reliability.
Auto Vacuum Priming System: Integrated skid base design simplifies installation and operation, reducing setup time.
Operational Advantages
Low Total Cost of Ownership
Grease-Lubricated Bearings: Heavy-duty taper roller bearings eliminate the need for oil recirculation systems, reducing maintenance complexity and costs.
Close-Tolerance Lantern Restrictor: Minimizes gland water usage, further lowering operational expenses.
Ease of Maintenance
Removable Shaft Sleeve: Hardened steel or ceramic-coated sleeves protect the shaft from abrasion and are easily replaceable.
Split Release Collar: Simplifies impeller removal on large-sized pumps, reducing downtime.
One-Piece Bearing Cartridge: Allows quick access to bearings for inspection or replacement.
Extended Service Life
Reduced Internal Velocities: Large casing volume and optimized hydraulic design minimize wear.
Side Sealing Vanes: Prevent solids intrusion into the gland area, extending seal life.
Heavy-Duty Shaft: Short overhang and large-diameter shaft reduce deflection, enhancing bearing durability.
Applications
Mining: Ideal for iron ore tailings, coal refuse backfill, and slag granulation.
Dredging: Handles abrasive slurries in inland dredging and tunneling projects.
Industrial: Suitable for high-pressure mine drainage, food processing (e.g., sugar beets), and industrial water management.
Technical Specifications
Parameter | GHP | GHPP |
Pressure Rating | 2,500 kPa | 2,100 kPa |
Flow Range | 180–5,800 m³/h | 180–5,800 m³/h |
Head | 20–85 m | 20–85 m |
Max Particle Size | 203 mm | 203 mm |
Wet-End Materials | High-chrome A05 / Super-chrome A61 / Ultra-chrome A14 | |
Shaft Seal Options | Gland Packing Seal / Expeller Seal / Mechanical Seal | |
The First Pump® GHP & GHPP High-Pressure Gravel Pumps set the industry standard for high-pressure slurry handling. With advanced materials, CFD-optimized hydraulics, and user-centric design, these pumps deliver unmatched reliability, efficiency, and cost savings in the most abrasive environments. Whether for mining, dredging, or industrial applications, they redefine performance in extreme conditions.
