Grundfos DMH 45-16 Mechanical Dosing Pump 45 L/h 16 Bar
Grundfos DMH 45-16 Mechanical Dosing Pump 45 L/h 16 Bar
Vendor: Grundfos
Unavailable
KEY FEATURES
- Approx. 45 L/h nominal dosing capacity at 50 Hz
- 16 bar maximum operating pressure
- Robust positive displacement diaphragm dosing pump
- PVDF dosing head
- Ceramic (Al₂O₃) valve balls
- PTFE valve seat and gasket components
- Handles liquids up to 50 mPa·s viscosity
- Manual stroke-length adjustment with 10:1 adjustment ratio
- 3 × 230/400 V, 50 Hz three-phase motor
- IP65 enclosure rating
- Multiple inlet and outlet connection size options
- CE, EAC and CNROHSEX approvals
The Grundfos DMH 45-16 is a versatile positive displacement diaphragm dosing pump designed for reliable chemical dosing in demanding industrial and process applications. The DMH range is engineered for robust operation where dependable dosing performance is required.
The diaphragm is hydraulically 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.
This configuration features a PVDF dosing head, PTFE diaphragm and sealing components, and ceramic valve balls, providing durable wetted components for compatible chemical dosing applications. With a nominal dosing capacity of 45 L/h and maximum operating pressure of 16 bar, the pump provides robust performance for demanding process environments.
ADDITIONAL FEATURES
- Long-life PTFE diaphragm
- Easy-to-install and operate design
- Aluminium pump housing
- Optimum capacity and stroke-frequency graduation
- Dosing flow variation ±1.5% (FS)
- Linearity ±2% (FS)
- Standard inlet and outlet non-return valves
- Connection sizes: 4/6, 6/9, 6/12 and 9/12
- Maximum permissible inlet pressure of 8 bar
- 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 applications requiring reliable chemical metering at pressures up to 16 bar.
PRODUCT PACKAGE INCLUDES
- Grundfos DMH 45-16 Mechanical Dosing Pump
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product Name | Grundfos DMH 45-16 |
| Model / Configuration | DMH 45-16 B-PV/T/C-X-E1U2U2XEMAG |
| Pump Type | Positive displacement diaphragm dosing pump |
| Nominal Flow Rate | 45 L/h at 50 Hz (approx. 11.89 US GPH) |
| Maximum Operating Pressure | 16 bar (approx. 232 psi) |
| Number of Dosing Heads | 1 |
| Maximum Viscosity | 50 mPa·s |
| Pump Housing | Aluminium |
| Dosing Head Material | PVDF |
| Diaphragm | PTFE |
| Valve Ball Material | Ceramic (Al₂O₃) |
| Valve Seat Material | PTFE / Composite |
| Valve Gasket Material | PTFE / Composite |
| Inlet Non-Return Valve | Standard |
| Outlet Non-Return Valve | Standard |
| Inlet Connection | Connection pack |
| Outlet Connection | Connection pack |
| Connection Sizes | 4/6, 6/9, 6/12, 9/12 |
| Maximum Permissible Inlet Pressure | 8 bar (approx. 116 psi) |
| Liquid Temperature Range | -10 to 20 °C |
| Power Input (P1) | 0.2 kW (approx. 0.268 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 | 12 kg (approx. 26.5 lb) |
| Gross Weight | 23.3 kg (approx. 51.4 lb) |
| Shipping Volume | 0.156 m³ |
| Approvals | CE, EAC, CNROHSEX |
| Country of Origin | Germany (DE) |
| Custom Tariff Number | 8413509060 |
ADDITIONAL RESOURCES
PRODUCT BROCURE
Additional information about Grundfos DMH Mechanical Dosing Pumps are available in the DMH product leaflet.
DATASHEET
Detailed specifications for the Grundfos DMH 18-16 Mechanical Dosing Pump 18 L/h 16 Bar are available in the datasheet below.
Additional technical data about the Grundfos DMH Mechanical Dosing Pumps are available in the product datasheet.

