Compatible replacement parts for Warman® AH® heavy-duty centrifugal slurry pumps. Designed for the continuous pumping of highly abrasive, dense slurries.
Hydraulic Institute 6, ISO 9001, ISO 14001, OHSAS 18001 and CE certified
Discharge sizes: 100mm to 450mm (4" to 18")
Heads to 240ft (73m) | Pressures to 1,000 psi (6,900 kPa)
Up to 2,000 kW
1 to 90°C
Up to 8,600 m³/hr
Warman® AH® horizontal centrifugal pumps contain a ductile-iron outer casing, high-chrome white-iron impeller and high-chrome white-iron or elastomer wear liners.
Warman® AH® heavy-duty slurry pumps contain a cartridge-style bearing assembly that allows maintenance to be performed in a clean environment without removal of the pump. This results in more reliable operation and prolonged bearing life.
This series of high-pressure centrifugal pumps contain a ductile-iron, fully-lined casing for enhanced durability, strength and safety. When fitted with WRT® technology, wear performance is enhanced with impellers proven to last significantly longer than polyurethane or steel impellers.
Large, open internal passages and large-diameter, slow-turning, high-efficiency impellers reduce internal velocities, maximise wear life and reduce operating costs. The patented WRT® impeller and throatbush combination enhances efficiency and improves wear performance.
The effective expeller prolongs packing life while reducing or eliminating flush water requirements. An optional dry running shaft seal reduces or eliminates flush water — suitable for mines with limited access to water.
Thick elastomer or alloy bolt-in liners provide superior corrosion resistance and ease of liner change-out. Interchangeable seal arrangements (full-flush, low-flow, centrifugal, or mechanical seals) can be fitted to pumps of all sizes.
An outer casing acts as secondary containment if internal liners wear out, preventing catastrophic failure. The outer casing provides overall structural strength, allowing inner liners to be worn to their fullest without compromising pressure rating.
We supply the full range of wet-end and power-end parts for Warman AH® pumps.
| Part Category | Materials Available | Frame Sizes |
|---|---|---|
| Impellers | A05, A07, R08, R26, R33, S01 | 1×1 to 12×10 |
| Volute Liners | A05, R08, R26 | 1×1 to 12×10 |
| Frame Plate Liners | A05, R08 | 1×1 to 12×10 |
| Throatbush | A05, R08 | 1×1 to 12×10 |
| Shaft Sleeves | 4140 Steel, Duplex SS | All frame sizes |
| Expeller | A05, D21 | All frame sizes |
| Seal Rings | Rubber, Polyurethane | All frame sizes |
| O-Ring Kits | Viton, EPDM, NBR | Complete frame kits |
Warman® AH® pumps are frequently used in heavy-duty pumping applications (Service Class 1-4) including the continuous pumping of highly abrasive and dense slurries.
🏔️ Hydrocyclone Feed
⛏️ Regrind
🫧 Flotation
🚛 Hydrotransport
🌊 Tailings
🏭 Mill Discharge
See how the AH® compares to other Warman heavy-duty and medium-duty pump ranges.
| Specification | AH® / AHPP (Heavy-Duty) | WBH® (Heavy-Duty Process) | XU (Medium-Duty) |
|---|---|---|---|
| Design Standards | Hydraulic Institute 6, ISO 9001, ISO 14001, OHSAS 18001, CE | Hydraulic Institute 6, ISO 9001, ISO 14001, OHSAS 18001, CE | Hydraulic Institute 9.6.2, ISO 9001, OHSAS 18001 |
| Discharge Size | 100–450mm (4"–18") | 25–300mm (1"–12") | 80–300mm (3"–12") |
| Max Head | 240ft (73m) | 240ft (73m) | 285ft (87m) |
| Max Pressure | 1,000 psi (6,900 kPa) | 300 psi (2,100 kPa) | 145 psi (1,000 kPa) |
| Max Power | 2,000 kW | — | — |
| Temperature | 1–90°C | 1–90°C | 1–90°C |
| Max Capacity | 8,600 m³/hr | 3,000 m³/hr | 2,271 m³/hr |
| Casing | Ductile iron, fully lined | Ductile iron, interchangeable liners | Unlined (Ultrachrome® A05) |
| Impeller | High-chrome white iron | Elastomer or white iron | Ultrachrome® A05 |
* AH® highlighted as our specialty range. We supply compatible replacement parts for all three series.
Made from cutting-edge wear-resistant materials including high-chrome alloys (A05, A07) and premium elastomers (R08, R26, R33) for improved reliability.
Greater efficiency and wear life resulting in lower CO₂ emissions and total cost of ownership compared to non-genuine parts.
More predictable lifespans compared to non-genuine counterparts. Less localised wear from gaps between liners and excessive vibration.
Built in state-of-the-art manufacturing facilities with proprietary moulding, high quality casting, and specific heat treatment. ISO 9001 certified.
Significant cost savings vs OEM pricing while meeting the same material and performance specifications. Every order includes spectroscopy report.
Interchangeable seal arrangements (full-flush, low-flow, centrifugal, or mechanical seals). Bolt-in liners for easy change-out on all frame sizes.
Send us your pump frame number or part number. We'll cross-reference and provide a quote within 24 hours.
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