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Grundfos DMX 525-3 Mechanical Dosing Pump 525 L/h 3 Bar
Grundfos DMX 525-3 Mechanical Dosing Pump 525 L/h 3 Bar
The Grundfos DMX 525-3 is a robust mechanical diaphragm dosing pump delivering up to 525 L/h at 3 bar. It features a PVC dosing head, PTFE-coated diaphragm, glass valve balls, PE valve seats and manual stroke-length adjustment. Ideal for water treatment, chemical dosing, pH adjustment and industrial process applications.
Vendor: Grundfos
Unavailable
KEY FEATURES
- Approx. 525 L/h nominal dosing capacity at 50 Hz
- 3 bar maximum operating pressure
- Robust positive displacement diaphragm dosing pump
- Mechanically coupled diaphragm drive
- PVC dosing head
- Long-life PTFE-coated diaphragm
- Glass valve balls (SiLibeads Type P)
- PE (polyethylene) valve seats
- FKM/rubber valve gaskets
- Single ball valve design
- Handles liquids up to 50 mPa·s viscosity
- Manual stroke-length adjustment with 10:1 adjustment ratio
- Robust aluminium pump housing
- Standard inlet and outlet non-return valves
- 40 mm cementing inlet and outlet connections
- Maximum suction lift during operation of 1 m
- Liquid temperature range from 0 to 40 °C
- 3 × 230/400 V, 50 Hz three-phase motor
- 0.4 kW power input
- IP65 enclosure rating
- CE, EAC and CNROHSEX approvals
The Grundfos DMX 525-3 is a versatile positive displacement diaphragm dosing pump designed for reliable higher-capacity chemical dosing in demanding industrial and process applications. Its robust aluminium construction, mechanically coupled diaphragm drive and straightforward capacity adjustment provide dependable dosing performance.
The diaphragm is mechanically coupled through a precise gear-eccenter-tappet system to a high-efficiency AC motor. Dosing capacity can be adjusted by varying the stroke length using the stroke adjustment knob, providing an adjustment ratio of 1:10. The liquid end incorporates single ball valves, while the robust industrial construction is designed for reliable operation in demanding process environments.
This configuration features a PVC dosing head, long-life PTFE-coated diaphragm, glass SiLibeads Type P valve balls, polyethylene (PE) valve seats and FKM/rubber valve gaskets. With a nominal dosing capacity of 525 L/h, maximum operating pressure of 3 bar and compatibility with liquids up to 50 mPa·s viscosity, the pump provides dependable performance for compatible industrial and chemical dosing applications.
ADDITIONAL FEATURES
- Long-life PTFE-coated diaphragm
- Mechanically coupled diaphragm design
- Easy-to-install and operate design
- Robust aluminium enclosure
- Optimum capacity and stroke-frequency graduation
- Dosing flow variation ±1.5% (FS)
- Linearity ±4% (FS)
- Single ball valve design
- Standard inlet non-return valve
- Standard outlet non-return valve
- Cementing-type inlet and outlet connections
- Inlet connection size: 40 mm
- Outlet connection size: 40 mm
- Maximum permissible inlet pressure of 0 bar
- Maximum suction lift during operation of 1 m
- Liquid temperature range from 0 to 40 °C
- Standard control variant
- Not prepared for VFD operation
- IP65 motor enclosure
APPLICATIONS
- Process engineering, water treatment, wastewater treatment, industrial chemical dosing, chemical treatment, disinfection, pH adjustment and other compatible applications requiring reliable higher-capacity chemical metering at pressures up to 3 bar.
PRODUCT PACKAGE INCLUDES
- Grundfos DMX 525-3 Mechanical Dosing Pump
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product Name | Grundfos DMX 525-3 |
| Product Number | 99206043 |
| Product SKU | GRU-99206043 |
| Model / Configuration | DMX 525-3 B-PVC/V/G-X-E1KKXEMAG |
| EAN Number | 5712608671142 |
| Pump Type | Positive displacement diaphragm dosing pump |
| Diaphragm Drive | Mechanically coupled |
| Nominal Flow Rate | 525 L/h at 50 Hz (approx. 138.7 US GPH) |
| Maximum Operating Pressure | 3 bar (approx. 43.5 psi) |
| Number of Dosing Heads | 1 |
| Maximum Viscosity | 50 mPa·s |
| Pump Housing | Aluminium |
| Dosing Head Material | PVC |
| Diaphragm | PTFE-coated |
| Valve Ball Material | Glass (SiLibeads Type P) |
| Valve Seat Material | PE (Polyethylene) |
| Valve Gasket Material | FKM / Rubber |
| Valve Configuration | Single ball valves |
| Inlet Non-Return Valve | Standard |
| Outlet Non-Return Valve | Standard |
| Inlet Connection | Cementing |
| Outlet Connection | Cementing |
| Inlet Connection Size | 40 mm |
| Outlet Connection Size | 40 mm |
| Maximum Permissible Inlet Pressure | 0 bar |
| Maximum Suction Lift During Operation | 1 m |
| Liquid Temperature Range | 0 to 40 °C |
| Power Input (P1) | 0.4 kW (approx. 0.536 HP) |
| Rated Voltage | 3 × 230/400 V |
| Mains Frequency | 50 Hz |
| Maximum Frequency | 50 Hz |
| Enclosure Class | IP65 |
| Control Variant | Standard |
| Frequency Converter | Not prepared for VFD |
| Cable Included | No |
| Power Plug | No plug |
| Diaphragm Leakage Detection | No |
| Net Weight | 22 kg (approx. 48.5 lb) |
| Gross Weight | 33.3 kg (approx. 73.4 lb) |
| Shipping Volume | 0.156 m³ |
| Approvals | CE, EAC, CNROHSEX |
| Country of Origin | Germany (DE) |
| Custom Tariff Number | 8413509060 |
ADDITIONAL RESOURCES
PRODUCT BROCHURE
Additional information about Grundfos DMH Mechanical Dosing Pumps are outlined in the DMH product brochure.
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PRODUCT INFORMATION SHEET (PIS)
Detailed information about the product, is provided in the product information sheet below.
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