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Grundfos DMX 1120-5 Mechanical Dosing Pump 1120 L/h 5 Bar
Grundfos DMX 1120-5 Mechanical Dosing Pump 1120 L/h 5 Bar
The Grundfos DMX 1120-5 is a high-capacity mechanical diaphragm dosing pump delivering 1120 L/h at 5 bar. It features a PVC dosing head, PTFE-coated diaphragm, PVC valve balls, PTFE valve seats and VFD-ready motor speed control. Ideal for water treatment, chemical dosing, pH adjustment and industrial process applications.
Vendor: Grundfos
Unavailable
KEY FEATURES
- 1120 L/h nominal dosing capacity at 50 Hz
- 5 bar maximum operating pressure
- High-capacity positive displacement diaphragm dosing pump
- Mechanically coupled diaphragm drive
- PVC dosing head
- Long-life PTFE-coated diaphragm
- PVC valve balls
- PTFE/composite valve seats
- FKM/rubber valve gaskets
- Ball valve liquid-end design
- Handles liquids up to 400 mPa·s viscosity
- VFD-ready motor speed adjustment for dosing capacity control
- Diaphragm fully guided during suction and discharge strokes
- Robust aluminium pump housing
- Standard inlet and outlet non-return valves
- 75 mm cementing-type inlet and outlet connections
- Liquid temperature range from 0 to 40 °C
- 3 × 230/400 V, 50 Hz three-phase motor
- 2 kW power input
- Maximum frequency of 100 Hz
- IP65 enclosure rating
- CE, EAC and CNROHSEX approvals
The Grundfos DMX 1120-5 is a versatile high-capacity positive displacement diaphragm dosing pump designed for reliable chemical dosing in demanding industrial and process applications. Its robust aluminium construction, PVC dosing head and mechanically coupled diaphragm drive provide dependable dosing performance for high-volume chemical metering requirements.
The diaphragm is mechanically coupled through a precise gear-eccenter-tappet system to a high-efficiency AC motor. Dosing capacity is adjusted by varying the motor speed using a frequency converter coupled directly to the motor. This configuration is prepared for VFD operation and is supplied without manual control. The diaphragm is fully guided during suction and discharge strokes without spring return, supporting reliable operation in demanding process environments.
This configuration features a PVC dosing head, PTFE-coated diaphragm, PVC valve balls, PTFE/composite valve seats and FKM/rubber valve gaskets. With a nominal dosing capacity of 1120 L/h at 50 Hz, maximum operating pressure of 5 bar and compatibility with liquids up to 400 mPa·s viscosity, the pump is suitable for compatible high-capacity chemical dosing and industrial process applications.
ADDITIONAL FEATURES
- Mechanically coupled PTFE-coated diaphragm
- Fully guided diaphragm during suction and discharge strokes
- No spring-return mechanism
- Easy-to-install and operate design
- Robust aluminium enclosure
- Dosing flow variation ±2% (FS)
- Linearity ±4% (FS)
- VFD-ready motor configuration
- Dosing capacity adjustment through motor speed variation
- Without manual control
- Standard inlet non-return valve
- Standard outlet non-return valve
- Cementing-type inlet and outlet connections
- Inlet connection size: 75 mm
- Outlet connection size: 75 mm
- Maximum permissible inlet pressure of 0 bar
- Liquid temperature range from 0 to 40 °C
- Maximum electrical frequency of 100 Hz
- IP65 motor enclosure
APPLICATIONS
- Process engineering, water treatment, wastewater treatment, industrial chemical dosing, chemical treatment, disinfection, pH adjustment and other compatible applications requiring reliable high-capacity chemical metering at pressures up to 5 bar.
PRODUCT PACKAGE INCLUDES
- Grundfos DMX 1120-5 Mechanical Dosing Pump
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product Name | Grundfos DMX 1120-5 |
| Product Number | 99592080 |
| Product SKU | GRU-99592080 |
| Model / Configuration | DMX 1120-5 D-PVC/V/PVC-X-E2RRXE0AG |
| EAN Number | 5713831567448 |
| Pump Type | Positive displacement diaphragm dosing pump |
| Diaphragm Drive | Mechanically coupled |
| Nominal Flow Rate | 1120 L/h at 50 Hz (approx. 295.86 US GPH) |
| Maximum Operating Pressure | 5 bar (approx. 72.52 psi) |
| Number of Dosing Heads | 1 |
| Maximum Viscosity | 400 mPa·s |
| Pump Housing | Aluminium |
| Dosing Head Material | PVC |
| Diaphragm | PTFE-coated |
| Valve Ball Material | PVC |
| Valve Seat Material | PTFE / Composite |
| Valve Gasket Material | FKM / Rubber |
| Valve Configuration | Ball valves |
| Inlet Non-Return Valve | Standard |
| Outlet Non-Return Valve | Standard |
| Inlet Connection | Cementing |
| Outlet Connection | Cementing |
| Inlet Connection Size | 75 mm |
| Outlet Connection Size | 75 mm |
| Maximum Permissible Inlet Pressure | 0 bar |
| Liquid Temperature Range | 0 to 40 °C |
| Power Input (P1) | 2 kW (approx. 2.68 HP) |
| Rated Voltage | 3 × 230/400 V |
| Mains Frequency | 50 Hz |
| Maximum Frequency | 100 Hz |
| Enclosure Class | IP65 |
| Control Variant | Without manual control |
| Frequency Converter | Prepared for VFD |
| Cable Included | No |
| Power Plug | No plug |
| Diaphragm Leakage Detection | No |
| Net Weight | 83 kg (approx. 183.0 lb) |
| Gross Weight | 91.7 kg (approx. 202.2 lb) |
| Shipping Volume | 0.995 m³ |
| Approvals | CE, EAC, CNROHSEX |
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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