Axial Plunger High Pressure Pump
FG Water AXP-H15–30 Axial Piston Pumps – 15–30 m³/h for High-Pressure Membrane Systems, up to 120 Bar
1. Product OverviewThe FG Water AXP-H15–30 range comprises high-pressure axial piston pumps for desalination, industrial wastewater concentration, and membrane-based resource recovery.The range includes AXP-H15, AXP-H21, AXP-H24, and AXP-H30, with catalogue rated flows from 15 to 30 m³/h. Maximum
1. Product Overview
The FG Water AXP-H15–30 range comprises high-pressure axial piston pumps for desalination, industrial wastewater concentration, and membrane-based resource recovery.
The range includes AXP-H15, AXP-H21, AXP-H24, and AXP-H30, with catalogue rated flows from 15 to 30 m³/h. Maximum continuous outlet pressure is 120 bar for AXP-H15, AXP-H21, and AXP-H24, and 110 bar for AXP-H30.
These fixed-displacement pumps use the pumped liquid for internal lubrication, eliminating the need for a lubricating oil reservoir. Flow can be adjusted by changing shaft speed within each model’s approved operating range.
2. PRODUCT SPECIFICATIONS
Model Specifications
| Parameter | AXP-H15 | AXP-H21 | AXP-H24 | AXP-H30 |
|---|---|---|---|---|
| Catalogue Rated Flow | 15 m³/h | 21 m³/h | 24 m³/h | 30 m³/h |
| Geometric Displacement | 362 cm³/rev | 362 cm³/rev | 362 cm³/rev | 444 cm³/rev |
| Maximum Continuous Outlet Pressure | 120 bar | 120 bar | 120 bar | 110 bar |
| Pump Weight | 105 kg | 105 kg | 105 kg | 105 kg |
Common Specifications
| Parameter | Specification |
|---|---|
| Product Type | Fixed-Displacement Axial Piston Pump |
| Lubrication | Pumped liquid; no lubricating oil required |
| Inlet Connection | M60 × 1.5, thread depth 23 mm |
| Outlet Connection | M60 × 1.5, thread depth 23 mm |
| Integrated Flushing Check Valve | Included |
| Supply Configurations | Pump head or configured motor-pump assembly |
Selection note: Rated flow refers to pump delivery, rather than membrane-system permeate production. Final pump and motor selection must be checked against the required flow, operating pressure, and model-specific performance curve.
AXP-H15～24 flow curve at 120bar
Flow curve of AXP-H30 at 110 bar
3. OPERATING PARAMETERS
Pressure and Temperature Limits
| Parameter | AXP-H15 | AXP-H21 | AXP-H24 | AXP-H30 |
|---|---|---|---|---|
| Minimum Outlet Pressure | 30 bar | 30 bar | 30 bar | 30 bar |
| Maximum Continuous Outlet Pressure | 120 bar | 120 bar | 120 bar | 110 bar |
| Minimum Inlet Pressure | 2 bar | 2 bar | 2 bar | 3 bar |
| Maximum Continuous Inlet Pressure | 5 bar | 5 bar | 5 bar | 5 bar |
| Fluid Temperature | 2–50°C* | 2–50°C* | 2–50°C* | 2–50°C* |
| Ambient Temperature | 0–50°C | 0–50°C | 0–50°C | 0–50°C |
Permissible fluid temperature depends on salinity and material compatibility.
Shaft Speed
| Model | Catalogue Rated Speed | Continuous Speed Range |
|---|---|---|
| AXP-H15 | Confirm before selection¹ | Confirm before selection¹ |
| AXP-H21 | 1,000 rpm | 500–1,000 rpm |
| AXP-H24 | 1,200 rpm | 500–1,200 rpm |
| AXP-H30 | 1,200 rpm | 500–1,200 rpm |
¹ The catalogue contains different speed values for AXP-H15. Confirm the approved speed and performance curve before finalizing the drive configuration.
Installation and Operation Requirements
Inlet filtration: Use a suitable precision filter rated at 10 µm absolute, with β₁₀ > 5,000, as specified in the catalogue.
Feed pressure: Maintain inlet pressure within the model-specific limits and provide low-pressure protection.
Pressure protection: Select relief devices, hoses, valves, and fittings for the actual operating pressure.
Liquid lubrication: Prevent dry running and ensure an adequate liquid supply during operation.
Shutdown flushing: Flush the pump with fresh water after high-salinity service.
Drive selection: Match motor power, shaft speed, coupling, and mounting arrangement to the selected duty point.
4. Key Features & Benefits
High-pressure capability
The range supports continuous outlet pressures up to 120 bar, with a 110 bar limit for AXP-H30.Four flow options
Catalogue rated flows of 15, 21, 24, and 30 m³/h support different industrial membrane-feed requirements.Oil-free liquid lubrication
The pumped liquid lubricates internal moving components, eliminating lubricating oil handling and routine oil changes.Adjustable flow through speed control
Fixed displacement enables flow adjustment within each model’s approved shaft-speed range.Integrated flushing check valve
Supports flushing arrangements in membrane treatment systems.Flexible supply configuration
Pump heads and configured motor-pump assemblies can be selected to suit project installation requirements.
5. Key Applications
| Application | Typical Use |
|---|---|
| High-Salinity Wastewater Treatment | High-pressure feed delivery to membrane concentration systems |
| Brine Concentration | Brine volume reduction and resource recovery |
| ZLD Pretreatment | Membrane concentration ahead of downstream zero-liquid-discharge processes |
| Landfill Leachate Treatment | High-pressure membrane feed service |
| Desalination | High-pressure seawater or brackish water treatment, subject to system design |
| Industrial Membrane Separation | Concentration of compatible food, pharmaceutical, and chemical process liquids |
Final suitability depends on fluid composition, salinity, temperature, required pressure, and material compatibility.
Send Your Water Treatment Requirement
Tell us the feedwater, required capacity, target water quality and project conditions. Your inquiry email will automatically include the page you are viewing so our team can understand the exact product, technology or reference that led to your request.
- Feedwater source / available analysis
- Design flow or required production capacity
- Target product-water quality or process duty
- Project country, operating conditions and delivery target